NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
226 reportsClear category filterMileage unknown · Nov 16, 2018
Engine
AFTER JUST 63,000 MILES BOTH TURBOS ON MY 2015 FORD EXPLORER SPORT FAILED. ONE WAS CONFIRMED AS LEAKING OIL WHICH COULD RESULT IN AN ENGINE FIRE. ADDITIONALLY, IT WAS CONFIRMED THAT THE VEHICLE'S TIMING COVER WAS LEAKING, ALSO AT RISK FOR ENGINE FIRE. VEHICLE HAS BEEN IMMACULATELY MAINTAINED WITH ALL SCHEDULED SERVICE AND TIM…
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AFTER JUST 63,000 MILES BOTH TURBOS ON MY 2015 FORD EXPLORER SPORT FAILED. ONE WAS CONFIRMED AS LEAKING OIL WHICH COULD RESULT IN AN ENGINE FIRE. ADDITIONALLY, IT WAS CONFIRMED THAT THE VEHICLE'S TIMING COVER WAS LEAKING, ALSO AT RISK FOR ENGINE FIRE. VEHICLE HAS BEEN IMMACULATELY MAINTAINED WITH ALL SCHEDULED SERVICE AND TIMELY SYNTHETIC OIL CHANGES.
NHTSA ODI #11152098
26,000 miles · Nov 13, 2018
Engine
TL* THE CONTACT OWNS A 2015 FORD EXPLORER. WHILE DRIVING UNKNOWN SPEEDS IN THE RAIN, THE CONTACT HEARD AN ABNORMAL SQUEALING NOISE COMING FROM THE SERPENTINE BELT. THE VEHICLE STALLED. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE LOCAL DEALER WAS NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS…
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TL* THE CONTACT OWNS A 2015 FORD EXPLORER. WHILE DRIVING UNKNOWN SPEEDS IN THE RAIN, THE CONTACT HEARD AN ABNORMAL SQUEALING NOISE COMING FROM THE SERPENTINE BELT. THE VEHICLE STALLED. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE LOCAL DEALER WAS NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS CONTACTED AND REFERRED THE CONTACT TO NHTSA. THE FAILURE MILEAGE WAS 26,000.
NHTSA ODI #11151236
44,000 miles · Oct 8, 2018
EngineFuel/propulsion SystemPower Train
LOSS OF POWER: WHILE DRIVING MY 2015 FORD EXPLORER XLT WITH 3.5L V-6 ENGINE ON THE HIGHWAY (10/04/18), THE WRENCH LIGHT CAME ON AND THE CAR STARTED TO SHUDDER AND LOSE SPEED. PUSHING DOWN ON THE ACCELERATOR HAD NO AFFECT AND THE CAR RAPIDLY DECELERATED. THE ENGINE WAS RUNNING VERY ROUGH WITH HEAVY VIBRATION. THIS WAS A TERRIFYIN…
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LOSS OF POWER: WHILE DRIVING MY 2015 FORD EXPLORER XLT WITH 3.5L V-6 ENGINE ON THE HIGHWAY (10/04/18), THE WRENCH LIGHT CAME ON AND THE CAR STARTED TO SHUDDER AND LOSE SPEED. PUSHING DOWN ON THE ACCELERATOR HAD NO AFFECT AND THE CAR RAPIDLY DECELERATED. THE ENGINE WAS RUNNING VERY ROUGH WITH HEAVY VIBRATION. THIS WAS A TERRIFYING AND NEARLY FATAL EXPERIENCE AS FASTER MOVING TRAFFIC STARTED PASSING ME ON BOTH SIDES AS I TRIED TO MOVE OFF THE HIGHWAY. I WAS ABLE TO MOVE THE CAR TO THE SIDE OF THE HIGHWAY AND LIMPED OFF THE NEAREST EXIT. ONCE OFF THE EXIT I SHUT THE CAR OFF AND SAT FOR 20 MINUTES WHILE I RE-GAINED MY COMPOSURE AND CALLED MY HUSBAND. WHEN HE ARRIVED HE STARTED THE EXPLORER AND THE WRENCH LIGHT WAS CLEARED. MY HUSBAND DRIVE THE CAR HOME USING ONLY BACK ROADS WHILE I FOLLOWED IN HIS CAR. WE CALLED OUR LOCAL FORD DEALER AND SCHEDULED AN APPOINTMENT. WE STARTED RESEARCHING THIS ISSUE AND FOUND THIS TO BE A WELL KNOWN PROBLEM WITH THE THROTTLE BODY ON FORD'S V6 ENGINES WHICH ARE USED ON MULTIPLE SUV'S, CROSSOVERS AND SEDANS. THE RESEARCH I'VE SEEN SHOWS THIS ISSUE HAS AFFECTED MORE THAN 10,000 OWNERS. HOWEVER, IT'S NOT CLEAR IF THE THROTTLE BODY IS FAULTY DUE TO A MANUFACTURING OR DESIGN DEFECT. IT'S ALSO NOT CLEAR IF REPLACING THE THROTTLE BODY IS A PERMANENT FIX. I'M TERRIFIED TO DRIVE THE CAR ON THE HIGHWAY AND SINCE THIS HAPPENED WE'VE ONLY USED IT FOR SHORTER TRIPS AROUND TOWN. THE FORD DEALER CHECKED THE CAR TODAY (10/08/18) BUT SINCE THE WRENCH LIGHT WAS CLEARED THEY FOUND NOTHING WRONG. I PLEADED WITH THE SERVICE ADVISOR TO NO AVAIL. WE'VE BEEN A FORD FAMILY FOR MORE THAN 15 YEARS BUT THIS FAULT AND EVEN WORSE THE FORD SERVICE ADVISOR'S RESPONSE IS COMPLETELY UNACCEPTABLE. THIS IS A SERIOUS AND DANGEROUS PROBLEM AND ONLY A MATTER OF TIME BEFORE SOMEONE AND THEIR FAMILY ARE KILLED. PLEASE INVESTIGATE AND FORCE FORD TO ISSUE A RECALL.
NHTSA ODI #11139061
57,209 miles · Sep 10, 2018
Engine
I WAS DRIVING ON THE INTERSTATE AT 70 MPH AND I HEARD A LOUD CLUNK AND MY ENGINE LOST ACCELERATION. I COULD NOT INCREASE MY SPEED AND THE CAR WOULD NOT GO. I HAD TO PULL OFF THE ROAD AND THE CAR WAS RUNNING ROUGH AND WHEN I PUSHED ON THE ACCELERATOR PEDAL THE CAR BARELY MOVED. I WAS ALMOST REAR END BY A TRUCK BUT LUCKILY I WAS A…
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I WAS DRIVING ON THE INTERSTATE AT 70 MPH AND I HEARD A LOUD CLUNK AND MY ENGINE LOST ACCELERATION. I COULD NOT INCREASE MY SPEED AND THE CAR WOULD NOT GO. I HAD TO PULL OFF THE ROAD AND THE CAR WAS RUNNING ROUGH AND WHEN I PUSHED ON THE ACCELERATOR PEDAL THE CAR BARELY MOVED. I WAS ALMOST REAR END BY A TRUCK BUT LUCKILY I WAS ABLE TO PULL OVER SAFELY. THE WRENCH ICON CAME ON MY DASH AND SAID TO TAKE TO DEALER. WHEN I GOT HOME I TOOK IT TO THE FORD DEALER AND THEY DID A DIAGNOSTIC TEST AND IT SHOWED A P2111 FAULT CODE. THE THROTTLE BODY WAS FAULTY AND HAD TO BE REPLACED. THIS MALFUNCTION PUT ME IN A VERY DANGEROUS POSITION.
NHTSA ODI #11128501
100 miles · Aug 22, 2018
Engine
THE EXHAUST LEAKING INTO THE CAR IT TERRIBLE, IT'S GIVING ME HEADACHES AND MAKING ME FEEL SICK. IT HAS BEEN GOING ON SINCE I PURCHASED THE CAR IN 2015 BUT I CAN'T TAKE IT ANYMORE. THE PROBLEM OCCURS WHEN EXCELERATING AT ANY SPEED. TAKING OFF FROM A STOP LIGHT OR ENTERING A HIGHWAY.
NHTSA ODI #11121664
34,000 miles · Jul 19, 2018
Engine
HAVE HAD 2015 EXPLORER IN LOCAL FORD DEALER 6 TIMES TO HAVE EXHAUST FUMES IN CABIN RESOLVED. THEY HAVE PERFORM REPAIRS TO CURRENT TSB'S. STILL HAVING EXHAUST FUMES IN CABIN AFTER NORMAL ACCELERATION. STARTING TO SMELL FUMES WHEN ENTERING CABIN AFTER REMOTE START. CURRENTLY VECHILE IN SHOP AGAIN!
NHTSA ODI #11112321
48,000 miles · Jun 15, 2018
Electrical SystemEnginePower Train
CAR LOSES POWER. THIS HAPPENED ON MY 2011 FORD MUSTANG V6 THAT HAD THE THROTTLE BODY REPLACED. CAR LOSES POWER SEVERAL TIMES A DAY NOW.
NHTSA ODI #11102006
49,000 miles · Jun 7, 2018
EngineInjury
2015 FORD EXPLORER SPORT EXHAUST IN THE CABIN I BEGAN SMELLING RAW EXHAUST WHEN I WOULD FIRST START MY CAR, THE AIR BLOWING THOUGH MY VENTS. I WOULD ROLL MY WINDOWS DOWN BECAUSE IT MADE ME IMMEDIATELY NAUSEOUS, AS I DROVE THE SMELL WOULD GO AWAY AND ROLL MY WINDOWS BACK UP. THE SMELL ONLY WENT AWAY FOR A FEW MINUTES AS THE CA…
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2015 FORD EXPLORER SPORT EXHAUST IN THE CABIN I BEGAN SMELLING RAW EXHAUST WHEN I WOULD FIRST START MY CAR, THE AIR BLOWING THOUGH MY VENTS. I WOULD ROLL MY WINDOWS DOWN BECAUSE IT MADE ME IMMEDIATELY NAUSEOUS, AS I DROVE THE SMELL WOULD GO AWAY AND ROLL MY WINDOWS BACK UP. THE SMELL ONLY WENT AWAY FOR A FEW MINUTES AS THE CABIN RESATURATED WITH EXHAUST SMELL. I STARTED TROUBLESHOOTING AND FOUND WHEN I TURNED ON RECIRCULATION WHILE DRIVING THE SMELL SUBSIDED. THIS ONLY WORKED WHILE DRIVING AND USING LESS THAN HALF THROTTLE. I WOULD SMELL A ROTTEN EGG SMELL WHEN I WOULD USE PART TO FULL THROTTLE ANYWHERE I WAS TRAVELING. I CONTACTED MY DEALER AND THEY PERFORMED THE EXHAUST COMPLAINT REPAIR. AFTER DRIVING THE CAR THE LAST FEW DAYS FROM GETTING IT BACK THERE HAS BEEN NO DIFFERENCE. AS THE WEATHER HEATS UP I AM USING AIR CONDITIONING MORE AND HAVE BEEN STARTING TO GET HEADACHES, NAUSEOUS AND LOSE OF ENERGY. MY COWORKER RODE WITH ME TODAY AND COMPLAINED WITHIN THE FIRST MINUTE OF DRIVING THAT EXHAUST SMELL WAS PRESENT IN THE CAR AND WAS GETTING A HEADACHE. I ROLLED DOWN THE WINDOWS AND HAVE NOT USED THE CLIMATE CONTROL. I WILL NOT BE USING THE CLIMATE CONTROL UNTIL THIS IS FIXED, I DO NOT WANT TO BE ANOTHER VICTIM OF A SERIOUS INJURY ACCIDENT OR DEATH.
NHTSA ODI #11100457
69,000 miles · Mar 26, 2018
EngineUnknown Or Other
CABIN IS FILLING WITH EXTREMELY INTENSE SMELL OF CARBON MONOXIDE. IT IS IMPOSSIBLE TO DRIVE AS YOU CAN NOT STAY IN IT FOR MORE THAN A FEW MINUTES. IT DOESN'T MATTER IF YOUR JUST DRIVING AROUND TOWN (5-10 MILES PER HOUR) OR IF YOU TRY TO GO ON A HIGHWAY (40-60 MPH). IT JUST GETS WORSE. AFTER A BRIEF TIME YOU GET LIGHTHEADED AND N…
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CABIN IS FILLING WITH EXTREMELY INTENSE SMELL OF CARBON MONOXIDE. IT IS IMPOSSIBLE TO DRIVE AS YOU CAN NOT STAY IN IT FOR MORE THAN A FEW MINUTES. IT DOESN'T MATTER IF YOUR JUST DRIVING AROUND TOWN (5-10 MILES PER HOUR) OR IF YOU TRY TO GO ON A HIGHWAY (40-60 MPH). IT JUST GETS WORSE. AFTER A BRIEF TIME YOU GET LIGHTHEADED AND NAUSEATED. I HAD THE VEHICLE TO A FORD DEALER A FEW MONTHS AGO TO SUPPOSEDLY FIX THE PROBLEM. WHATEVER THEY DID CERTAINLY DIDN'T WORK AS IT HAS NOW GOTTEN TO THIS POINT.
NHTSA ODI #11081188
Mileage unknown · Mar 26, 2018
EngineUnknown Or OtherInjury
WITHIN THE FIRST, ORIGINAL, 2000 MILES OF DRIVING MY NEW 2015 FORD EXPLORER MY FAMILY AND I HAVE BEEN SUBJECTED TO AN ODER THAT IS SIMILAR TO MELTING PLASTIC, BURNING HAIR OR ENGINE EXHAUST FUMES IN ROW PASSENGER CABIN WHILE DRIVING. THIS IS ESPECIALLY NOTICEABLE AFTER HIGH RPM ACCELERATION OR DURING HIGHWAY DRIVING. IN RELAT…
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WITHIN THE FIRST, ORIGINAL, 2000 MILES OF DRIVING MY NEW 2015 FORD EXPLORER MY FAMILY AND I HAVE BEEN SUBJECTED TO AN ODER THAT IS SIMILAR TO MELTING PLASTIC, BURNING HAIR OR ENGINE EXHAUST FUMES IN ROW PASSENGER CABIN WHILE DRIVING. THIS IS ESPECIALLY NOTICEABLE AFTER HIGH RPM ACCELERATION OR DURING HIGHWAY DRIVING. IN RELATION TO THIS SMELL IS ARE SYMPTOMS OF HEADACHE, TIREDNESS, AND OR NAUSEA. I HAVE BROUGHT VEHICLE TO MULTIPLE FORD DEALERSHIPS, THE LAST TIME THE DEALERSHIP HAD THE CAR FOR OVER 4 WEEKS! WE HAVE BEEN TOLD THAT NECESSARY REPAIRS HAVE BEEN MADE. BUT THE VEHICLE AND MY FAMILY ARE STILL EXPERIENCING THE SAME PROBLEMS. VEHICLE NOW HAS JUST OVER 23000 MILES ON IT. SINCE BUYING VEHICLE I HAVE HAD A NUMBER EMERGENCY ROOM VISITS THAT WERE NOT CONCLUSIVE AND AFTER READING FINDINGS BY THIS AGENCY AND OTHERS NOW BELIEVE THAT THERE IS A CONNECTION TO MY FORD EXPLORER, AND WE ARE SUFFERING FROM PROLONGED CARBON MONOXIDE POISONING!
NHTSA ODI #11081180
Official recalls
8Oct 13, 2025
Ford Motor Company (Ford) is recalling certain 2015-2019 Flex, 2015 Explorer, Lincoln MKT, Lincoln MKZ, 2015-2016 C-Max, Escape, Taurus, 2016 Fusion, 2018-2019 Taurus, 2019 Lincoln MKT, Fiesta, and 2020 Mustang vehicles. The rearview camera may display a distorted, intermittent, or blank image when the vehicle is in reverse.
Consequence & remedy
Consequence: A rearview camera that fails to properly display an image can reduce the driver’s view behind the vehicle, increasing the risk of a crash.
Remedy: Dealers will inspect and replace the rearview camera as necessary, free of charge. This will be a phased campaign, with the remedy becoming available in different phases based on model and model years. Interim letters notifying owners of the safety risk were mailed on October 25, 2025. Additional letters will be mailed once the final remedy is available on each phase. Mustang owner notification letters were mailed January 2, 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25SA9. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on October 14, 2025.
Jan 19, 2024
Ford Motor Company (Ford) is recalling certain 2011-2019 Explorer vehicles. The A-pillar trim retention clips may not be properly engaged, allowing the trim to detach.
Consequence & remedy
Consequence: A detached trim piece can fall off the vehicle, becoming a road hazard and increasing the risk of a crash.
Remedy: Dealers will inspect and replace the A-pillar trim as necessary, free of charge. This will be a phased campaign, with the remedy becoming available in different phases based on model years. Owner notification letters were mailed between July 18, 2024 and December 16, 2025. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 24S02.
Jul 15, 2021
Ford Motor Company (Ford) is recalling certain 2013-2017 Explorer vehicles originally sold, or ever registered, in Connecticut, Delaware, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, Wisconsin, and the District of Columbia. Exposure to road salt can cause the cross-axis ball joint to corrode and seize, resulting in a fracture of the outboard section of the rear suspension toe link.
Consequence & remedy
Consequence: A rear toe-link fracture can result in a loss of steering control, increasing the risk of a crash.
Remedy: Dealers will inspect and replace as necessary, the cross-axis ball joint (CABJ) knuckle, and replace the rear suspension toe links, free of charge. This recall is an expansion of previous NHTSA recall numbers 16V-245, 19V-435, and 20V-675. Certain vehicles previously repaired will need to return for the new remedy. An interim notification letter notifying owners of the safety risk were mailed on September 10, 2021. Owner notification letters were mailed on March 16, 2022. Owners may contact Ford's customer service at 1-866-436-7332. Ford's number for this recall is 21S32.
Mar 12, 2021
Ford Motor Company (Ford) is recalling certain 2013-2017 Explorer vehicles originally sold, or currently registered in Connecticut, Delaware, the District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, and Wisconsin that were previously repaired under a prior recall numbers 16V-245 or 19V-435. The outboard section of a rear suspension toe link may fracture.
Consequence & remedy
Consequence: A rear toe link fracture can result in a loss of steering control, increasing the risk of a crash.
Remedy: Ford will notify owners, and dealers will inspect the cross-axis ball joint (CABJ) knuckle attached to the rear suspension toe link and replace it as necessary, free of charge. The recall began November 27, 2020. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 20S62.
Nov 10, 2020
Ford Motor Company (Ford) is recalling certain 2014-2016 Explorer, 2014-2015 Taurus and 2014 Edge vehicles equipped with 2.0L or 2.3L engines and front wheel drive. The support bracket for the front drive axle halfshaft may fail.
Consequence & remedy
Consequence: The failed bracket could result in a loss of park function which can cause unintended vehicle movement, and loss of motive power while driving which increases the risk of a crash.
Remedy: Ford will notify owners, and dealers will replace the link shaft bracket, free of charge. Parts are not currently available. Owners received an interim notification detailing safety risk December 8, 2020. A second letter will be mailed when parts become available in January 2021. The recall began February 2, 2021. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 20S63.
Jun 10, 2019
Ford Motor Company (Ford) is recalling certain 2011-2017 Explorer vehicles. The rear suspension toe links may fracture due to stress on the rear suspension.
Consequence & remedy
Consequence: A fractured rear toe link will cause a sudden change in vehicle handling and increase the risk of a crash.
Remedy: Ford will notify owners, and dealers will replace the rear suspension toe links, and inspect both rear toe link ball joints, replacing the rear wheel knuckle(s), if necessary, free of charge. The recall began June 26, 2019. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 19S17.
Apr 26, 2016
Ford Motor Company (Ford) is recalling certain model year 2014-2015 Ford Explorer vehicles manufactured January 17, 2014 to May 31, 2014. The affected vehicles may have improperly welded rear suspension toe links that may fracture.
Consequence & remedy
Consequence: A fracture of the rear suspension toe link may result in a loss of steering control, increasing the risk of a crash.
Remedy: Ford will notify owners, and dealers will replace the rear suspension toe links, free of charge. The recall began on November 18, 2016. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 16S18.
Jul 24, 2015
Ford Motor Company (Ford) is recalling certain model year 2015 Ford Taurus, Ford Flex, and Lincoln MKS vehicles manufactured May 4, 2015, to May 23, 2015, Lincoln MKT vehicles manufactured May 4, 2015, to May 21, 2015, and 2015-2016 Ford Explorer vehicles manufactured May 4, 2015, to May 23, 2015. The affected vehicles have a parking brake that may not fully engage when applied. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 135, "Light Vehicle Brake Systems."
Consequence & remedy
Consequence: If the parking brake does not fully engage and the transmission is left in a gear other than 'Park' while on a slope, the vehicle may roll away, increasing the risk of a crash.
Remedy: Ford will notify owners, and dealers will test the operation of the parking brake system, and if necessary, replace the parking brake control assembly, free of charge. The recall began on September 4, 2015. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 15C07.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
5PE23001 · Windshield Trim Molding Item Detachment
Opened Jan 27, 2023 · Closed Feb 8, 2024
Status: closed (inferred from source dates) · Structure:body:roof And Pillars
On January 27, 2023, the Office of Defects Investigation (ODI) opened PE23-001 to investigate allegations of A-pillar trim panel detachment on model year (MY) 2011-2019 Ford Explorer vehicles. At the time of opening, the office had received 164 Vehicle Owner Questionnaires (VOQs) reporting this failure. ODI has received 671 VOQs regarding this failure, including 1 alleged crash and 2 alleged injuries. Some consumers have reported that the failure occurred while they were driving at highway speeds, with the detached trim panel entering the path of travel of the vehicle behind them, requiring the driver of the following vehicle to take evasive action. It is noteworthy that motorists who experience this type of road hazard are less likely to accurately identify the subject vehicle the item detached from and report the event to the NHTSA. In its April 17, 2023 response to ODI’s information request, Ford provided 175 consumer complaints (including field reports) and 14,162 warranty claims related to A-pillar trim panel detachment. Ford relayed that the subject vehicles utilize a plastic A-pillar bracket, which is bolted to the vehicle structure during assembly. The A-pillar trim panel is attached to the bracket utilizing 7 plastic clips. Contributory factors which have been identified by Ford as leading to the subject defect include incomplete installation at the assembly plant, inadequate part stack up, damage to fasteners during installation, and failure to follow proper repair procedure during windshield replacements or other services. On January 19, 2024, Ford filed safety recall 24V-031 for MY 2011-2019 Ford Explorer vehicles to address the subject defect. In the Part 573 Safety Recall Report, Ford identified that a detached A-pillar trim panel can create a road hazard for other road users, increasing the risk of a crash. The recall remedy includes an inspection of the existing A-pillar trim panel and, if necessary, the replacement of the component. The remedy A-pillar trim panels will be installed with an additional adhesive for robustness and utilize an inspection procedure to ensure full engagement of all the retention clips during installation. In view of the recall action being taken by Ford, ODI is closing this Preliminary Evaluation. The agency reserves the right to take additional action if warranted by future circumstances. To review the reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
EA17002 · Exhaust Odor In Passenger Cab
Opened Jul 27, 2017 · Closed Jan 17, 2023
Status: closed (inferred from source dates) · Engine And Engine Cooling:exhaust System:manifold/header/muffler/tail Pipe; Structure:body
During the EA17-002 investigation, the agency reviewed and analyzed reports of exhaust odors in the passenger cabins of Model Year 2011 to 2017 Ford Explorers. This investigation required an approach that incorporated knowledge and expertise from the automotive, medical, environmental health, and occupational safety fields. The agency conducted an in-depth investigation that encompassed the review of over 6,500 consumer complaints, conducting field inspections, and testing the relevant vehicles, both independently and in coordination with Ford and other entities. During the investigation, the evolution of Ford service bulletins intended to reduce the level of exhaust odors and carbon monoxide (CO) entering the occupant compartment was examined and independent tests to evaluate the effectiveness of the final Field Service Actions (FSA) for both consumer and police vehicles were conducted. As part of the investigation, the agency also examined the effects of cracked exhaust mani-cats on the measured CO levels in the vehicles and tested the FSA repairs to ensure they did not adversely impact occupant compartment CO levels due to cracked mani-cats.The investigation identified upfitting issues for Police Interceptor vehicles. Upfitting (sirens, lights, cages, auxiliary power, etc.) is typically performed by governmental fleet operations, independent repair facilities, or local Ford dealers after the sale of the new vehicle. Sealing issues caused by upfitting were responsible for the highest measured carbon monoxide levels in tested vehicles. The police FSA instructs how to inspect the quality of the vehicle upfits and how to properly seal any leaks caused by these upfits, at no cost to the police agency. Similarly, the highest CO levels measured in consumer vehicles were usually traced to sealing issues caused by rear crash damage where the repairs did not ensure sealing integrity. The most recent Ford FSA procedure for both the police (17B25) and consumer vehicles (17N03) includes an HVAC reprogramming operation. Tests by Ford and NHTSA have demonstrated a substantial reduction of CO levels due solely to the HVAC reprogramming. Other FSA repairs also demonstrated measurable contributions to CO level reductions during controlled tests.Throughout the investigation, vehicles accurately measured with higher levels of carbon monoxide were almost always affected by upfitter alterations, damage, or other causes compromising rear passenger cabin seals.NHTSA received thousands of reports alleging odors which triggered a variety of physiological responses, predominately nausea, headaches, and lightheadedness. NHTSA focused the investigation on accurately measuring vehicle CO levels, and accurately measuring carboxyhemoglobin (COHB) levels from properly administered blood tests. Using rigorous test methods to produce exhaust gas intrusion in vehicles with a properly performed FSA, occupant compartment CO levels remained below current environmental limits for CO in any environment (EPA ambient air quality standards). Furthermore, even without FSA repairs, no vehicles unaffected by upfitter issues or prior crash damage were identified with CO levels that exceed accepted occupational CO exposure levels. This investigation finds that the 2011-2017 Ford Explorer vehicles when accurately measured produce occupant compartment CO levels which fall below current accepted health standards, and could not identify COHB levels for vehicle drivers or other occupants, which exceeded thresholds for acute physiological effects. Therefore, the agency has not identified a defect that represents an unreasonable risk to motor vehicle safety.This inve
Additional source detail variants (2)
Engine And Engine Cooling:exhaust System:manifold/header/muffler/tail Pipe
During the EA17-002 investigation, the agency reviewed and analyzed reports of exhaust odors in the passenger cabins of Model Year 2011 to 2017 Ford Explorers. This investigation required an approach that incorporated knowledge and expertise from the automotive, medical, environmental health, and occupational safety fields. The agency conducted an in-depth investigation that encompassed the review of over 6,500 consumer complaints, conducting field inspections, and testing the relevant vehicles, both independently and in coordination with Ford and other entities. During the investigation, the evolution of Ford service bulletins intended to reduce the level of exhaust odors and carbon monoxide (CO) entering the occupant compartment was examined and independent tests to evaluate the effectiveness of the final Field Service Actions (FSA) for both consumer and police vehicles were conducted. As part of the investigation, the agency also examined the effects of cracked exhaust mani-cats on the measured CO levels in the vehicles and tested the FSA repairs to ensure they did not adversely impact occupant compartment CO levels due to cracked mani-cats.The investigation identified upfitting issues for Police Interceptor vehicles. Upfitting (sirens, lights, cages, auxiliary power, etc.) is typically performed by governmental fleet operations, independent repair facilities, or local Ford dealers after the sale of the new vehicle. Sealing issues caused by upfitting were responsible for the highest measured carbon monoxide levels in tested vehicles. The police FSA instructs how to inspect the quality of the vehicle upfits and how to properly seal any leaks caused by these upfits, at no cost to the police agency. Similarly, the highest CO levels measured in consumer vehicles were usually traced to sealing issues caused by rear crash damage where the repairs did not ensure sealing integrity. The most recent Ford FSA procedure for both the police (17B25) and consumer vehicles (17N03) includes an HVAC reprogramming operation. Tests by Ford and NHTSA have demonstrated a substantial reduction of CO levels due solely to the HVAC reprogramming. Other FSA repairs also demonstrated measurable contributions to CO level reductions during controlled tests.Throughout the investigation, vehicles accurately measured with higher levels of carbon monoxide were almost always affected by upfitter alterations, damage, or other causes compromising rear passenger cabin seals.NHTSA received thousands of reports alleging odors which triggered a variety of physiological responses, predominately nausea, headaches, and lightheadedness. NHTSA focused the investigation on accurately measuring vehicle CO levels, and accurately measuring carboxyhemoglobin (COHB) levels from properly administered blood tests. Using rigorous test methods to produce exhaust gas intrusion in vehicles with a properly performed FSA, occupant compartment CO levels remained below current environmental limits for CO in any environment (EPA ambient air quality standards). Furthermore, even without FSA repairs, no vehicles unaffected by upfitter issues or prior crash damage were identified with CO levels that exceed accepted occupational CO exposure levels. This investigation finds that the 2011-2017 Ford Explorer vehicles when accurately measured produce occupant compartment CO levels which fall below current accepted health standards, and could not identify COHB levels for vehicle drivers or other occupants, which exceeded thresholds for acute physiological effects. Therefore, the agency has not identified a defect that represents an unreasonable risk to motor vehicle safety.This inve
Structure:body
During the EA17-002 investigation, the agency reviewed and analyzed reports of exhaust odors in the passenger cabins of Model Year 2011 to 2017 Ford Explorers. This investigation required an approach that incorporated knowledge and expertise from the automotive, medical, environmental health, and occupational safety fields. The agency conducted an in-depth investigation that encompassed the review of over 6,500 consumer complaints, conducting field inspections, and testing the relevant vehicles, both independently and in coordination with Ford and other entities. During the investigation, the evolution of Ford service bulletins intended to reduce the level of exhaust odors and carbon monoxide (CO) entering the occupant compartment was examined and independent tests to evaluate the effectiveness of the final Field Service Actions (FSA) for both consumer and police vehicles were conducted. As part of the investigation, the agency also examined the effects of cracked exhaust mani-cats on the measured CO levels in the vehicles and tested the FSA repairs to ensure they did not adversely impact occupant compartment CO levels due to cracked mani-cats.The investigation identified upfitting issues for Police Interceptor vehicles. Upfitting (sirens, lights, cages, auxiliary power, etc.) is typically performed by governmental fleet operations, independent repair facilities, or local Ford dealers after the sale of the new vehicle. Sealing issues caused by upfitting were responsible for the highest measured carbon monoxide levels in tested vehicles. The police FSA instructs how to inspect the quality of the vehicle upfits and how to properly seal any leaks caused by these upfits, at no cost to the police agency. Similarly, the highest CO levels measured in consumer vehicles were usually traced to sealing issues caused by rear crash damage where the repairs did not ensure sealing integrity. The most recent Ford FSA procedure for both the police (17B25) and consumer vehicles (17N03) includes an HVAC reprogramming operation. Tests by Ford and NHTSA have demonstrated a substantial reduction of CO levels due solely to the HVAC reprogramming. Other FSA repairs also demonstrated measurable contributions to CO level reductions during controlled tests.Throughout the investigation, vehicles accurately measured with higher levels of carbon monoxide were almost always affected by upfitter alterations, damage, or other causes compromising rear passenger cabin seals.NHTSA received thousands of reports alleging odors which triggered a variety of physiological responses, predominately nausea, headaches, and lightheadedness. NHTSA focused the investigation on accurately measuring vehicle CO levels, and accurately measuring carboxyhemoglobin (COHB) levels from properly administered blood tests. Using rigorous test methods to produce exhaust gas intrusion in vehicles with a properly performed FSA, occupant compartment CO levels remained below current environmental limits for CO in any environment (EPA ambient air quality standards). Furthermore, even without FSA repairs, no vehicles unaffected by upfitter issues or prior crash damage were identified with CO levels that exceed accepted occupational CO exposure levels. This investigation finds that the 2011-2017 Ford Explorer vehicles when accurately measured produce occupant compartment CO levels which fall below current accepted health standards, and could not identify COHB levels for vehicle drivers or other occupants, which exceeded thresholds for acute physiological effects. Therefore, the agency has not identified a defect that represents an unreasonable risk to motor vehicle safety.This inve
PE16008 · Ford Explorer Exhaust Odor
Opened Jul 1, 2016 · Closed Sep 12, 2017
Status: closed (inferred from source dates) · Engine And Engine Cooling:exhaust System; Structure:body
During the National Highway Traffic Safety Administration?s (NHTSA?s) investigation into the Ford carbon monoxide allegations, the Office of Defects Investigation (ODI) identified additional Vehicle Owner Questionnaire (VOQ) reports with similar exhaust odor claims.Presently, ODI has identified 791 VOQs for Model Year 2011-2017 Ford Explorers pertaining to exhaust odor claims.ODI has identified three crashes and 41 injuries potentially linked this issue.The reported injuries range from unspecified to loss of consciousness, with the majority being nausea, headaches, or dizziness ? all of which can be symptomatic of carbon monoxide exposure.Additionally, Ford provided 2,400 reports including owner complaints, warranty claims, dealer field reports, and legal claims, that involve 2,051 vehicles that may be connected to the exhaust odor issue.NHTSA's Vehicle Test and Research Center tested multiple vehicles, including complaint vehicles, during the investigation.ODI also conducted field inspections of complaint vehicles and crashes involving police units that occurred while the officers were on duty.When possible, data was collected to quantify carbon monoxide levels in the examined vehicles.Based on the information gathered to date, NHTSA upgraded this investigation to an Engineering Analysis (EA17-002).
Additional source detail variants (2)
Engine And Engine Cooling:exhaust System
During the National Highway Traffic Safety Administration?s (NHTSA?s) investigation into the Ford carbon monoxide allegations, the Office of Defects Investigation (ODI) identified additional Vehicle Owner Questionnaire (VOQ) reports with similar exhaust odor claims.Presently, ODI has identified 791 VOQs for Model Year 2011-2017 Ford Explorers pertaining to exhaust odor claims.ODI has identified three crashes and 41 injuries potentially linked this issue.The reported injuries range from unspecified to loss of consciousness, with the majority being nausea, headaches, or dizziness ? all of which can be symptomatic of carbon monoxide exposure.Additionally, Ford provided 2,400 reports including owner complaints, warranty claims, dealer field reports, and legal claims, that involve 2,051 vehicles that may be connected to the exhaust odor issue.NHTSA's Vehicle Test and Research Center tested multiple vehicles, including complaint vehicles, during the investigation.ODI also conducted field inspections of complaint vehicles and crashes involving police units that occurred while the officers were on duty.When possible, data was collected to quantify carbon monoxide levels in the examined vehicles.Based on the information gathered to date, NHTSA upgraded this investigation to an Engineering Analysis (EA17-002).
Structure:body
During the National Highway Traffic Safety Administration?s (NHTSA?s) investigation into the Ford carbon monoxide allegations, the Office of Defects Investigation (ODI) identified additional Vehicle Owner Questionnaire (VOQ) reports with similar exhaust odor claims.Presently, ODI has identified 791 VOQs for Model Year 2011-2017 Ford Explorers pertaining to exhaust odor claims.ODI has identified three crashes and 41 injuries potentially linked this issue.The reported injuries range from unspecified to loss of consciousness, with the majority being nausea, headaches, or dizziness ? all of which can be symptomatic of carbon monoxide exposure.Additionally, Ford provided 2,400 reports including owner complaints, warranty claims, dealer field reports, and legal claims, that involve 2,051 vehicles that may be connected to the exhaust odor issue.NHTSA's Vehicle Test and Research Center tested multiple vehicles, including complaint vehicles, during the investigation.ODI also conducted field inspections of complaint vehicles and crashes involving police units that occurred while the officers were on duty.When possible, data was collected to quantify carbon monoxide levels in the examined vehicles.Based on the information gathered to date, NHTSA upgraded this investigation to an Engineering Analysis (EA17-002).
EA15005 · Front Brake Hose Failure
Opened Sep 28, 2015 · Closed Nov 2, 2018
Status: closed (inferred from source dates) · Service Brakes, Hydraulic:foundation Components:hoses, Lines/piping, And Fittings
On April 29, 2015, the Office of Defects Investigation (ODI) opened PE15-017 to investigate a report alleging incidents of front brake hose failure in model year (MY) 2015 Ford Explorer Police Interceptor vehicles used by the Sacramento Police Department in its pursuit driving training program (VOQ 10705832).On September 28, 2015, ODI upgraded the investigation to an Engineering Analysis (EA15-005) to assess maximum front caliper crimp temperatures under various test conditions, test hose assemblies removed from police interceptor service for any signs of thermal degradation, and further assess field data for evidence of a defect trend related to the alleged defect.The alleged defect results from exposure to extremely high heat at the caliper-side hose crimp. NHTSA?s vehicle testing suggests that the conditions necessary to produce the critical temperatures in the subject components result from drive-soak intervals that can occur during the Sacramento training program.NHTSA's testing of hose assemblies returned from police interceptor service did not identify any evidence of thermal degradation.NHTSA has not confirmed any incidents of caliper crimp failures due to overheating in vehicles not subjected to the Sacramento training course driving.The low number of hose assembly failure reports and the absence of any verified incidents of heat related front brake hose crimp failures since 2015 suggests that the Sacramento PD incidents resulted from conditions unique to the training program.A safety related defect trend has not been identified at this time and further use of Agency resources does not appear to be warranted.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The Agency will take further action if warranted by the circumstances.For additional information, see the Closing Report in the document file for EA15-005 on www.nhtsa.gov.
PE15017 · Front Brake Hose Failure
Opened Apr 29, 2015 · Closed Sep 28, 2015
Status: closed (inferred from source dates) · Service Brakes, Hydraulic:foundation Components:hoses, Lines/piping, And Fittings
On April 29, 2015, the Office of Defects Investigation (ODI) opened PE15-017 to investigate reports of low-mileage failures of front brake jounce hoses in model year (MY) 2015 Ford Explorer Police Interceptor vehicles operated as training vehicles by the City of Sacramento, California (ODI VOQ No. 10705832). To date, the Sacramento police fleet has reported a total of 7 front hose failures in 5 different Explorer Police Interceptor vehicles used for its Emergency Vehicle Operation Course (EVOC) training. Most of the failures occurred within the first few miles of service on a closed course used for the EVOC program, which includes evasive accident avoidance and pursuit maneuver training. The hose assemblies either leaked at, or pulled completely free from, the caliper-end attachment where the hose is crimped to the steel end fitting. Most of the failures resulted in a sudden loss of braking performance that caused the vehicle to run off the intended course. None of the failures resulted in any crashes, injuries or property damage.The subject MY 2015 hose assemblies are similar in design to hoses used on MY 2013 through 2014 Explorer Police Interceptor and civilian vehicles. The 5 vehicles used by Sacramento EVOC have all been repaired using MY 2016 front hose assemblies that have been changed to incorporate a short steel tube attached to the caliper end banjo block. No failures have been experienced by the Sacramento fleet to date in the other 37 MY 2014-2015 Explorer Police Interceptor vehicles (2 MY 2014 and 35 MY 2015) used by the fleet in regular law enforcement duty cycles unrelated to the EVOC training. In its response to ODI's information request letter for PE15-017, Ford provided information about 2 additional failures reported by other fleets, including 1 involving a Sacramento Regional Transit vehicle that occurred while being driven on the street.Based on its analysis of failed parts returned from the Sacramento fleet and the fleet's EVOC training duty cycle, Ford attributes the Sacramento fleet hose failures to excessive temperatures produced during hot-soak portions of the EVOC training duty cycle (when the vehicles are stationary after hard braking exercises, with no cooling air flow through the brake rotor vents and across the other brake components). During testing conducted to replicate the EVOC duty cycle, Ford measured temperatures at the subject crimp fittings that exceeded the design limits of the brake hose material after several successive training intervals and hot soaks. Ford has provided the Sacramento fleet with modified replacement hose assemblies for all of its MY 2014-15 Explorer Police Interceptor vehicles. The replacement hose assemblies were developed for use in MY 2016 Explorer vehicles and were modified slightly to accommodate the addition of a ride height sensor in those vehicles. The revised assemblies have an additional length of brake pipe between the caliper end connection and the subject crimp ferrule that results in additional heat dissipation and makes the assemblies more robust to the severe thermal effects experienced during the EVOC testing (the hose material is the same in both assemblies). Ford believes that the excessive temperatures experienced at the crimp fitting in the subject vehicles are unique to the EVOC duty cycle, have not been observed in the standard on-road severe duty cycle testing performed by Ford and police fleets who routinely conduct such testing and are not likely to occur in service usage for on-road Explorer Police Interceptor vehicles.This preliminary evaluation is closed, an Engineering Analysis (EA15-005) has been opened to conduct testing and further