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2002 Workhorse W22

Owner reports · Recalls · Investigations

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There is not enough comparable history to draw a useful model-year comparison.

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What owners reported most

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When problems were reported

Mileage at the reported incident

43 reports with mileage · 24 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Service Brakes, Hydraulic. Review the 62 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine And Engine Cooling. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Service Brakes. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

1 crash reports6 fire reports0 injury reports

Service Brakes, Hydraulic complaints

62 reports
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41,000 miles · Apr 20, 2009
Service Brakes, HydraulicFire

WE WERE TRAVELING ON INTERSTATE 83 HEADING NORTH PAST BALTIMORE WHEN WE SMELLED A BURNING BRAKE SMELL - WE PULLED OVER ON THE SIDE OF 83 AND THE FRONT DRIVERS SIDE BRAKE CALIBER HAD STUCK AND WOULD NOT RELEASE - THE RUBBER DUST BOOT CAUGHT FIRE - THE INSIDE OF THE TIRE CRACKED AND BEGAN TO MELT DUE TO THE HEAT - WE EXTINGUISHED …

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WE WERE TRAVELING ON INTERSTATE 83 HEADING NORTH PAST BALTIMORE WHEN WE SMELLED A BURNING BRAKE SMELL - WE PULLED OVER ON THE SIDE OF 83 AND THE FRONT DRIVERS SIDE BRAKE CALIBER HAD STUCK AND WOULD NOT RELEASE - THE RUBBER DUST BOOT CAUGHT FIRE - THE INSIDE OF THE TIRE CRACKED AND BEGAN TO MELT DUE TO THE HEAT - WE EXTINGUISHED IT WITH THE FIRE EXTINGUISHER. AFTER LETTING THE BRAKE COOL FOR A HOUR WE WERE ABLE TO MAKE IT OFF THE EXIT TO A SIDE ROAD. THIS IS THE SECOND BRAKE CALIBER THAT HAS GONE BAD ON THIS VEHICLE. THE FIRST BEING IN JULY 2008 ON THE REAR PASSENGER SIDE. WE PURCHASED THE PARTS AT BILL'S AUTO AND TRUCK REPAIR IN GWYNN OAK, MD - INVOICE NUMBER 10847 TOTALING $670.25 FOR PARTS. WHEN I CALLED WORKHORSE THEY SAID THAT THE RECALL NOTICES HAVE BEEN SENT OUT AND OUR MOTOR HOME IS INCLUDED IN THE RECALL AND WE SHOULD RECEIVE THE RECALL NOTICE WITHIN 30 DAYS. WE CALLED MILLERS REPAIR IN BELTSVILLE AND THEY SAID THAT RECALL NUMBER 50901-C WAS LISTED BUT THE PARTS AREN'T DUE IN UNTIL SEPT - OCT 2009. THE MOTOR HOME IS UN-DRIVABLE DUE TO THIS DEFECT AND I BELIEVE IT SHOULD BE REPAIRED RIGHT AWAY. WE HAVE MANY CAMPING PLANS FOR THE SUMMER AND DO NOT WANT TO WASTE AND ENTIRE SUMMER DUE TO THE WORKHORSE DEFECT. 2003 CHALLENGER MOTOR . ANY HELP / INFORMATION OR DIRECTION YOU COULD GIVE US WOULD BE APPRECIATED. *TR UPDATED 05/08/09

NHTSA ODI #10266174

Mileage unknown · Apr 10, 2009
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2002 WORKHORSE W22. THE CONTACT NOTICED THAT THE ABS WARNING INDICATOR WOULD CONSISTENTLY ILLUMINATE ON THE INSTRUMENT CONTROL PANEL. HE TOOK THE VEHICLE TO THE DEALER AND THEY REPLACED ALL THE ABS SENSORS AT THE COST OF $618. SEVERAL MONTHS AFTER THE REPAIR, THE FAILURE RESURFACED. HE TOOK THE VEHICLE …

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TL*THE CONTACT OWNS A 2002 WORKHORSE W22. THE CONTACT NOTICED THAT THE ABS WARNING INDICATOR WOULD CONSISTENTLY ILLUMINATE ON THE INSTRUMENT CONTROL PANEL. HE TOOK THE VEHICLE TO THE DEALER AND THEY REPLACED ALL THE ABS SENSORS AT THE COST OF $618. SEVERAL MONTHS AFTER THE REPAIR, THE FAILURE RESURFACED. HE TOOK THE VEHICLE BACK TO THE DEALER AND THEY REPLACED THE TWO FRONT ABS SENSORS AT THE COST OF $360. TWO MONTHS AFTER THE REPAIR, THE FAILURE RECURRED. THE CONTACT TOOK THE VEHICLE BACK TO THE DEALER AND THEY STATED THAT HE NEEDED TO REPLACE THE ENTIRE BRAKING SYSTEM AT THE COST OF $2,000. HE IS IN THE PROCESS OF HAVING THE VEHICLE REPAIRED. THE MANUFACTURER DID NOT ASSIST. THE FAILURE AND CURRENT MILEAGES WERE NOT APPLICABLE.

NHTSA ODI #10264901

Mileage unknown · Apr 3, 2009
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2002 WORKHORSE W22 CHASSIS. THE VEHICLE WAS REPAIRED ACCORDING TO NHTSA CAMPAIGN ID NUMBER 04V084000 (SERVICE BRAKES, HYDRAULIC) IN 2004. SEVERAL YEARS LATER, THE CONTACT NOTICED THAT THE BRAKING SYSTEM WOULD HANG UP OR LOCK DURING EMERGENCY STOPPING. DURING THE FAILURE, THE ABS WARNING INDICATOR ILLUMIN…

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TL*THE CONTACT OWNS A 2002 WORKHORSE W22 CHASSIS. THE VEHICLE WAS REPAIRED ACCORDING TO NHTSA CAMPAIGN ID NUMBER 04V084000 (SERVICE BRAKES, HYDRAULIC) IN 2004. SEVERAL YEARS LATER, THE CONTACT NOTICED THAT THE BRAKING SYSTEM WOULD HANG UP OR LOCK DURING EMERGENCY STOPPING. DURING THE FAILURE, THE ABS WARNING INDICATOR ILLUMINATED ON THE INSTRUMENT PANEL ACCOMPANIED BY A BURNING ODOR. HE CALLED A LOCAL REPAIR SHOP AND A TECHNICIAN STATED THAT HE WOULD HAVE TO REPLACE THE BRAKE CALIPER, PADS, AND ABS MODULE. THE VEHICLE HAS NOT YET BEEN REPAIRED. THE MANUFACTURER STATED THAT THEY WOULD NOT ASSUME RESPONSIBILITY FOR THE REPAIR BECAUSE THE VEHICLE WAS PREVIOUSLY REPAIRED ACCORDING TO THE RECALL. THE FAILURE AND CURRENT MILEAGES WERE NOT APPLICABLE. UPDATED 10/5/09 *CN THE CONSUMER STATED THE ROTORS HAD CRACKS, THE PAS WERE SCARRED AND HAD CHUNKS MISSING FROM THEM. THE ROTORS WERE TURNED AND THE PADS WERE REPLACED. THE CONSUMER WAS INFORMED BY THE MANUFACTURER THAT THE BRAKES WERE REPAIRED IN 2004 AND NO FURTHER ACTION WOULD BE TAKEN. THE CONSUMER STATED THE PROBLEM WAS NEVER REMEDIED AND THIS HAS BEEN AN ONGOING PROBLEM SINCE 2002. UPDATED 10/06/09

NHTSA ODI #10264094

31,000 miles · Mar 9, 2009
Service Brakes, Hydraulic

RIGHT FRONT BRAKE CALIPER NOT FULLY RELEASING, CAUSING EXTREME HEAT, MELTING OF PLASTIC COVER, GLAZING OF THE ROTOR, MELTING OF THE ABS SPEED SENSOR. THE FAILURE OCCURS ALMOST EVERY TRIP, WHERE THE BRAKE DRAGS SLIGHTLY, BUT USUALLY RELEASES AFTER A FEW MILES. I HAVE HAD THE WORKHORSE RECALL COMPLETED REGARDING BRAKES, BUT…

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RIGHT FRONT BRAKE CALIPER NOT FULLY RELEASING, CAUSING EXTREME HEAT, MELTING OF PLASTIC COVER, GLAZING OF THE ROTOR, MELTING OF THE ABS SPEED SENSOR. THE FAILURE OCCURS ALMOST EVERY TRIP, WHERE THE BRAKE DRAGS SLIGHTLY, BUT USUALLY RELEASES AFTER A FEW MILES. I HAVE HAD THE WORKHORSE RECALL COMPLETED REGARDING BRAKES, BUT IT DID NOT HELP THE ISSUE. *TR

NHTSA ODI #10261325

Mileage unknown · Feb 5, 2009
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2002 FLEETWOOD BOUNDER. THE CONTACT TOOK HIS VEHICLE TO A LOCAL RV REPAIR SHOP FOR ROUTINE INSPECTION AND WAS INFORMED THAT HIS BRAKES WERE DAMAGED. THE VEHICLE WAS REPAIRED ACCORDING TO NHTSA CAMPAIGN ID NUMBER 04V084000 (SERVICE BRAKES, HYDRAULIC). THREE YEARS AFTER THE REPAIR, HE WAS ADVISED BY A TECH…

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TL*THE CONTACT OWNS A 2002 FLEETWOOD BOUNDER. THE CONTACT TOOK HIS VEHICLE TO A LOCAL RV REPAIR SHOP FOR ROUTINE INSPECTION AND WAS INFORMED THAT HIS BRAKES WERE DAMAGED. THE VEHICLE WAS REPAIRED ACCORDING TO NHTSA CAMPAIGN ID NUMBER 04V084000 (SERVICE BRAKES, HYDRAULIC). THREE YEARS AFTER THE REPAIR, HE WAS ADVISED BY A TECHNICIAN THAT THE BRAKE ROTORS AND PADS NEEDED TO BE REPLACED. THE CONTACT IS IN THE PROCESS OF HAVING THE VEHICLE REPAIRED. THE MANUFACTURER DID NOT ASSIST. THE FAILURE AND CURRENT MILEAGES WERE NOT APPLICABLE. UPDATED 06/11/09. *LJ THE CONSUMER WAS INFORMED THE FRONT ROTOR HAD A LAARGE CRACK. THE ROTORS AND BRAKES WERE REPLACED. SINCE THE ROTORS WERE REPLACED, THE BRAKE LIGHT COMES ON. UPDATED 06/11/09.*JB

NHTSA ODI #10257541

20,500 miles · Dec 11, 2008
Service Brakes, Hydraulic

BRAKES HAVE BEEN GIVING TROUBLE. REDID FRONT BRAKES AND NOW HAVE TO DO THE REAR. 2002 WORKHORSE MOTOR HOME CHASSIS. REPAIRS TO THE FRONT WAS OVER 900.00 . DON'T KNOW WHAT THE REAR WILL COST... *TR

NHTSA ODI #10251450

Mileage unknown · Oct 28, 2008
Engine And Engine CoolingService Brakes, Hydraulic

2002 BOUNDER WITH CHEVY WORKHORSE CHASSIS BRAKE SYSTEM FAILURE. *NJ THE CONSUMER WAS INFORMED THE FRONT CALIPER ON THE PASSENGER SIDE HAD SEIZED AND DESTROYED ALL THE PREVIOUS BRAKE WORK THE CONSUMER HAD DONE 56 MILES AGO. THE LEFT FRONT OIL SEAL WAS LEAKING. *JB

NHTSA ODI #10247071

30,000 miles · Oct 24, 2008
Service Brakes, Hydraulic

COMING HOME ON THE 405 FREEWAY IN LOS ANGLES IN STOP AND GO TRAFFIC, MY RIGHT FRONT CALIPER APPARENTLY STUCK ON. ABOUT 2 MILES FROM HOME THE ABS LIGHT CAME ON AND I COULD SMELL THE BRAKES. I WENT ON HOME AND THE RIGHT FRONT WHEEL WAS SMOKING. I LET IT COOL. SINCE THEN I HAVE REPLACED THE RIGHT FRONT CALIPER, THE BRAKE LINE AND T…

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COMING HOME ON THE 405 FREEWAY IN LOS ANGLES IN STOP AND GO TRAFFIC, MY RIGHT FRONT CALIPER APPARENTLY STUCK ON. ABOUT 2 MILES FROM HOME THE ABS LIGHT CAME ON AND I COULD SMELL THE BRAKES. I WENT ON HOME AND THE RIGHT FRONT WHEEL WAS SMOKING. I LET IT COOL. SINCE THEN I HAVE REPLACED THE RIGHT FRONT CALIPER, THE BRAKE LINE AND THE ABS SENSOR. ALL OF THE OTHER CALIPERS APPEAR TO BE OK. *TR

NHTSA ODI #10246595

40,000 miles · Oct 20, 2008
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2002 WORKHORSE W22. WHILE DRIVING APPROXIMATELY 10 MPH IN A RESIDENTIAL COMMUNITY, THE BRAKE PEDAL EXTENDED TO THE FLOOR. THE VEHICLE FAILED TO STOP AND COASTED THE REST OF THE WAY TO ITS DESTINATION. THE VEHICLE WAS TOWED TO A DEALER. THE CURRENT AND FAILURE MILEAGES WERE 40,000. UPDATED 11/07/08 *B…

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TL*THE CONTACT OWNS A 2002 WORKHORSE W22. WHILE DRIVING APPROXIMATELY 10 MPH IN A RESIDENTIAL COMMUNITY, THE BRAKE PEDAL EXTENDED TO THE FLOOR. THE VEHICLE FAILED TO STOP AND COASTED THE REST OF THE WAY TO ITS DESTINATION. THE VEHICLE WAS TOWED TO A DEALER. THE CURRENT AND FAILURE MILEAGES WERE 40,000. UPDATED 11/07/08 *BF THE FRONT BRAKES LOCKED UP AND THE PEDAL WENT TO THE FLOOR. THE ABS LIGHT ILLUMINATED. THE CALIPERS LOCKED UP AND DAMAGED THE FLEX HOSE AND ABS SENSOR. UPDATED 11/13/08. *JB

NHTSA ODI #10246088

40,856 miles · Oct 8, 2008
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2002 WORKHORSE W22 . WHILE DRIVING BETWEEN 20-30 MPH, THE BRAKES FAILED. THE BRAKE PEDAL EXTENDED TO THE FLOOR WHEN IT WAS DEPRESSED. THE CONTACT PULLED OFF THE ROAD INTO A GRASSY AREA, WHICH SLOWED DOWN THE VEHICLE AND EVENTUALLY LED TO A COMPLETE STOP. HE PULLED THE VEHICLE BACK ONTO THE ROAD AND DROV…

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TL*THE CONTACT OWNS A 2002 WORKHORSE W22 . WHILE DRIVING BETWEEN 20-30 MPH, THE BRAKES FAILED. THE BRAKE PEDAL EXTENDED TO THE FLOOR WHEN IT WAS DEPRESSED. THE CONTACT PULLED OFF THE ROAD INTO A GRASSY AREA, WHICH SLOWED DOWN THE VEHICLE AND EVENTUALLY LED TO A COMPLETE STOP. HE PULLED THE VEHICLE BACK ONTO THE ROAD AND DROVE TO A SHOPPING CENTER. THE BRAKES WERE PERFORMING BETTER, BUT DISPLAYED VERY LITTLE STOPPING POWER. THE VEHICLE WAS TOWED TO A DEALER AND THEY STATED THAT THE PASSENGER SIDE CALIPER HAD BEEN LOCKED UP FOR QUITE A WHILE. THE DEALER REPLACED THE BEARING SEAL ON THE FRONT PASSENGER SIDE WHEEL, BRAKE PADS, FRONT AND REAR ROTORS, AND THE FRONT AND REAR CALIPERS. AFTER THE REPAIRS WERE MADE, THE CONTACT DISCOVERED AN INVESTIGATION RELATING TO THE SERVICE BRAKES, HYDRAULIC, WHICH DESCRIBED THE SAME FAILURES HE WAS EXPERIENCING. THE NHTSA CAMPAIGN ID NUMBER WAS UNKNOWN. THE FAILURE MILEAGE WAS 40,856 AND CURRENT MILEAGE WAS 43,926. UPDATED 11/7/08 *CN THE CALIPERS LOCKED UP, WHICH CAUSED THE ROTORS TO WARP. UPDATED 11/13/08. *JB

NHTSA ODI #10244713

Official recalls

2

09V110000 · Service Brakes, Hydraulic

Apr 3, 2009

NAVISTAR IS RECALLING CERTAIN MODEL YEAR MY 2001-2008 WORKHORSE W20, W21 AND W22 CHASSIS AND CERTAIN MODEL YEAR 2009 THROUGH 2011 MONACO RV ADMIRAL, ARISTA, MONARCH, AND RIPTIDE RECREATIONAL VEHICLES EQUIPPED WITH AXLES THAT INCLUDE BOSCH ZOPS OR ZOHT PIN SLIDE HYDRAULIC DISC BRAKES. WHEN COMBINED WITH OCCASIONAL OR SEASONAL VEHICLE OPERATION MAY EXPERIENCE CALIPERS STICKING IN THE APPLIED POSITION. THIS CAN RESULT IN ABNORMAL HEAT GENERATION AT THE WHEEL END CAUSING BRAKE DRAG. THE DRIVER WOULD NORMALLY HAVE WARNING OF THE BRAKE DRAG IF UNDETECTED BY THE DRIVER.

Consequence & remedy

Consequence: THE TEMPERATURE INCREASE AT THE WHEEL END CAN EVENTUALLY LEAD TO SOFT PEDAL CONDITIONS DUE TO BRAKE FLUID BOIL, AND POSSIBLE EXTENDED STOPPING DISTANCE INCREASING THE RISK OF A CRASH.

Remedy: WORKHORSE DEALERS WILL REPLACE ALL FOUR BOSCH BRAKE CALIPER ASSEMBLIES FREE OF CHARGE. THE SAFETY RECALL BEGAN ON SEPTEMBER 16, 2010. OWNERS MAY CONTACT WORKHORSE AT 1-877-246-7731.

04V084000 · Service Brakes, Hydraulic

Feb 18, 2004

ON CERTAIN MOTORHOME CHASSIS EQUIPPED WITH BOSCH ZOPS, THE PADS CAN DRAG ON THE ROTOR SURFACE DUE TO THE PIN SLIDE.

Consequence & remedy

Consequence: A HANG UP OR LOCK UP MAY CAUSE THE CALIPERS TO OVER HEAT AND NOT ALLOW THE DRIVER TO STOP SAFELY. THIS COULD CAUSE OVERHEATING OF THE BRAKE CALIPERS WHICH COULD RESULT IN A VEHICLE FIRE.

Remedy: DEALERS WILL INSPECT, REPAIR AND REPLACE ACCORDING TO THE PROCEDURE DEVELOPED BY BOSCH (SEE CAMPAIGN 03E064000). THE RECALL BEGAN ON AUGUST 1, 2004. OWNERS SHOULD CONTACT WORKHORSE AT 1-877-294-6773.

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

2

EA07016 · Overheating Disc Brake Caliper

Opened Nov 16, 2007 · Closed Aug 19, 2009

Status: closed (inferred from source dates) · Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Additional source detail variants (7)

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

EA03003 · Overheating Front And Rear Brakes

Opened Apr 9, 2003 · Closed Mar 3, 2004

Status: closed (inferred from source dates) · Service Brakes, Hydraulic:foundation Components

THIS INVESTIGATION WAS DERIVED FROM INFORMATION GATHERED DURING PE02-046, BOSCH DISC BRAKE CALIPERS.THIS INVESTIGATION FOCUSED ON THE VEHICLE MANUFACTURER, NEWMAR.SUBJECT VEHICLES WERE THOSE BUILT WITH A HYDRAULIC BRAKE SYSTEM INCORPORATING THE BOSCH ZERO OFFSET PIN SLIDE (ZOPS) CALIPERS.ODI'SCONCERN WASEXCESSIVE WHEEL END HEAT, POSSIBLY RESULTING IN A WHEEL END FIRE.DURING THE INVESTIGATION, ODI DISCOVERED TWO SPECIFIC NEWMAR VEHICLE MODELS, THOSE BUILT ON NEWMAR CHASSIS AND THOSE BUILT ON A WORKHORSE CHASSIS. AS A RESULT OF THE AGENY'S INVESTIGATION INTO THIS MATTER, ALL NEWMAROWNERS WILL BE NOTIFIED (04V-019) AND THE REMEDY WILL BE APPLIED TO THEIR VEHICLES. SOME NEWMAR VEHICLES (1,795) BUILT ON THE WORKHORSE CHASSIS ARE BEING RECALLED BY WORKHORSE (04V-084).THIS INVESTIGATION IS CLOSED.FURTHER DETAILS ARE PROVIDED ON PAGES 2, 3, AND 4.COPIES OF BOTH SAFETY RECALLS ARE ATTACHED.