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2002 Workhorse W22

Owner reports · Recalls · Investigations

Limited comparison data

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

About this comparison →
67Owner complaints

Model-year median: 8

2Recall campaigns

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2Investigations

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How this year compares

Owner complaints by model year

Other model years Selected year
1
200010
200167
2002113
200392
200421
2005
Compare all W22 years →

Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

Service Brakes, Hydraulic
62Engine And Engine Cooling
4Service Brakes
2Suspension
2Electrical System
1
All reported categories
Exterior Lighting
1Power Train
1Vehicle Speed Control
1Visibility/wiper
1

Tap a category to read its complaints. One report may name several components.

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

What owners actually said

67 reports
20,000 miles · Apr 2, 2008
Service Brakes, Hydraulic

TL*- THE CONTACT OWNS A 2002 WORK HORSEMAN CHASSIS W22. ON SEVERAL OCCASIONS THE CHASSIS BRAKES OVERHEATED. WHEN THE BRAKES OVERHEATED HE WOULD PULL OVER UNTIL THEY COOLED DOWN. ON APRIL 10, 2006 THE CONTACT EXPERIENCE A TOTAL FAILURE OF THE BRAKES, HE WAS TRYING TO SLOW DOWN, AND THE BREAK PEDAL WHEN DOWN TO THE FLOOR. IT WAS…

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TL*- THE CONTACT OWNS A 2002 WORK HORSEMAN CHASSIS W22. ON SEVERAL OCCASIONS THE CHASSIS BRAKES OVERHEATED. WHEN THE BRAKES OVERHEATED HE WOULD PULL OVER UNTIL THEY COOLED DOWN. ON APRIL 10, 2006 THE CONTACT EXPERIENCE A TOTAL FAILURE OF THE BRAKES, HE WAS TRYING TO SLOW DOWN, AND THE BREAK PEDAL WHEN DOWN TO THE FLOOR. IT WAS FOUND THAT THE RIGHT FRONT CALIPER OVERHEATED. THE DEALER REPLACED THE TUBE, CALIPER, ABS SENSOR,. BREAK PADS, FLUIDS AND GUIDE PINS. THE SECOND MAJOR FAILURE OCCURRED MARCH 19, 2008 THE ABS LIGHT TURNED ON AND BRAKING POWER WAS LOST. AT WHICH TIME THE LEFT FRONT SIDE CALIPER WAS FOUND TO HAVE OVERHEATED. THE DEALER REPLACED THE CALIPER, FLUIDS, ABS SENSOR, AND BREAK HOSE, THIS REPAIR WAS COVER BY THE WARRANTY. THE CURRENT MILEAGE WAS 30,000, AND THE FAILURE MILEAGE WAS 20,000.

NHTSA ODI #10223192

11,000 miles · Jan 16, 2008
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2002 WORKHORSE W22. WHILE DRIVING 60 MPH, THE BRAKE PEDAL WAS DEPRESSED AND THE VEHICLE BEGAN TO PULL BACK AND FORTH. THERE WERE NO WARNING INDICATORS PRIOR TO THE FAILURE. THE CONTACT PULLED OFF THE ROAD. THE VEHICLE WAS TOWED TO A REPAIR SHOP AND THEY STATED THAT THE BRAKE CALIPERS NEEDED TO BE REPLAC…

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TL*THE CONTACT OWNS A 2002 WORKHORSE W22. WHILE DRIVING 60 MPH, THE BRAKE PEDAL WAS DEPRESSED AND THE VEHICLE BEGAN TO PULL BACK AND FORTH. THERE WERE NO WARNING INDICATORS PRIOR TO THE FAILURE. THE CONTACT PULLED OFF THE ROAD. THE VEHICLE WAS TOWED TO A REPAIR SHOP AND THEY STATED THAT THE BRAKE CALIPERS NEEDED TO BE REPLACED. THE CALIPERS AND ALL OTHER BRAKE COMPONENTS WERE REPLACED. THE VEHICLE WAS PREVIOUSLY SERVICED FOR NHTSA CAMPAIGN ID NUMBER 04V084000 (SERVICE BRAKES, HYDRAULIC). THE FAILURE MILEAGE WAS 11,000 AND CURRENT MILEAGE WAS 18,565. UPDATED 02-12-08 *BF THE CONSUMER STATED SAFETY RECALL 50401-C PERFORMED ON 09/24/04 AT 10,511 MILES. THE CONSUMER STATED MANUFACTURER SHOULD REIMBURSE HIM FOR THE COST OF REPAIRS IN THE AMOUNT OF $ 3,323.30. UPDATED 02/12/08 *TR

NHTSA ODI #10215122

48,450 miles · Jan 4, 2008
Service Brakes, Hydraulic

2002 HOLIDAY RAMBLER VACATIONER. REPLACED ENTIRE BRAKING SYSTEM ON 05/21/2005PERRECALL BULITEN #50401-C 32071 MILESON COACH ALL4ROTORS WERE CRACKED ON 11/02/2007 BRAKES MAKING NOISE NOW 3 ROTORS ARE CRACKED.WORKHORSE REFUSE TO REPLACE ROTORS PROBLEM DUE TO EXESSIVE HEAT BRAKES BEING APPLIED FOR 2 MINUETS REPAIRS HAVE NOT BEEN M…

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2002 HOLIDAY RAMBLER VACATIONER. REPLACED ENTIRE BRAKING SYSTEM ON 05/21/2005PERRECALL BULITEN #50401-C 32071 MILESON COACH ALL4ROTORS WERE CRACKED ON 11/02/2007 BRAKES MAKING NOISE NOW 3 ROTORS ARE CRACKED.WORKHORSE REFUSE TO REPLACE ROTORS PROBLEM DUE TO EXESSIVE HEAT BRAKES BEING APPLIED FOR 2 MINUETS REPAIRS HAVE NOT BEEN MADE YET . *CN

NHTSA ODI #10213700

48,583 miles · Jan 3, 2008
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2002 WORKHORSE W22. WHILE DRIVING 50 MPH, HE HEARD A SCRAPING NOISE AND THE BRAKES THUMPED WHEN HE DEPRESSED THE BRAKE PEDAL. THE DEALER STATED THAT RIGHT FRONT AND BOTH REAR ROTORS WERE CRACKED. IN ADDITION, THEY FELT THAT THE CALIPERS OVERHEATED AND WAS THE CAUSE OF THE FAILURE. AS OF JANUARY 3, 2008,…

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TL*THE CONTACT OWNS A 2002 WORKHORSE W22. WHILE DRIVING 50 MPH, HE HEARD A SCRAPING NOISE AND THE BRAKES THUMPED WHEN HE DEPRESSED THE BRAKE PEDAL. THE DEALER STATED THAT RIGHT FRONT AND BOTH REAR ROTORS WERE CRACKED. IN ADDITION, THEY FELT THAT THE CALIPERS OVERHEATED AND WAS THE CAUSE OF THE FAILURE. AS OF JANUARY 3, 2008, THE DEALER HAD NOT REPAIRED THE VEHICLE. THE CONTACT STATED THAT ALL FOUR ROTORS, CALIPERS AND HOSES WERE PREVIOUSLY REPLACED AS PART OF NHTSA CAMPAIGN ID # 04V084000 (SERVICE BRAKES: HYDRAULIC). THE MANUFACTURER REFUSED TO REPAIR THE FAILURE AGAIN. THE CURRENT AND FAILURE MILEAGES WERE 48,583. UPDATED 01/29/08 *LJ. UPDATED 01/29/08 *TR

NHTSA ODI #10213586

15,254 miles · Nov 15, 2007
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2002 WORKHORSE W22. WHILE DRIVING 35 MPH, THE CONTACT NOTICED A BURNING SMELL COMING FROM THE FRONT PASSENGER SIDE OF THE VEHICLE. HE STATED THAT THE CALIPERS OVERHEATED. THERE WAS A RECALL REPAIR PERFORMED FOR THE SERVICE BRAKES, HYDRAULIC (NHTSA CAMPAIGN ID NUMBER 04V084000) IN FEBRUARY OF 2005. THE C…

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TL*THE CONTACT OWNS A 2002 WORKHORSE W22. WHILE DRIVING 35 MPH, THE CONTACT NOTICED A BURNING SMELL COMING FROM THE FRONT PASSENGER SIDE OF THE VEHICLE. HE STATED THAT THE CALIPERS OVERHEATED. THERE WAS A RECALL REPAIR PERFORMED FOR THE SERVICE BRAKES, HYDRAULIC (NHTSA CAMPAIGN ID NUMBER 04V084000) IN FEBRUARY OF 2005. THE CONTACT STATED THAT THE FIRST FAILURE DID NOT OCCUR UNTIL JUNE OF 2006. THE DEALER STATED THAT THE SLIDE RODS, CALIPERS, AND ROTORS SHOULD BE REPLACED. AS OF NOVEMBER 15, 2007, THE DEALER HAD NOT REPAIRED THE VEHICLE. THE FAILURE MILEAGE WAS 11,000 AND CURRENT MILEAGE WAS 15,300. UPDATED 01-14-08. *KB THE BRAKE SYSTEM WAS REPLACED. UPDATED 12/12/07

NHTSA ODI #10208992

17,775 miles · Oct 9, 2007
Power TrainService Brakes, Hydraulic

TL*THE CONTACT OWNS A 2002 WORKHORSE W22 HOLIDAY RAMBLER. WHILE DRIVING 30 MPH, THE BRAKE PEDAL EXTENDED TO THE FLOORBOARD WHEN DEPRESSED. THE CONTACT PULLED OVER AND NOTICED THAT THE REAR BRAKE CALIBER OVERHEATED AND BOILED THE BRAKE FLUID. THE DEALER WAS UNABLE TO DIAGNOSE THE FAILURE. THE DEALER REPLACED THE BRAKE COMPONEN…

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TL*THE CONTACT OWNS A 2002 WORKHORSE W22 HOLIDAY RAMBLER. WHILE DRIVING 30 MPH, THE BRAKE PEDAL EXTENDED TO THE FLOORBOARD WHEN DEPRESSED. THE CONTACT PULLED OVER AND NOTICED THAT THE REAR BRAKE CALIBER OVERHEATED AND BOILED THE BRAKE FLUID. THE DEALER WAS UNABLE TO DIAGNOSE THE FAILURE. THE DEALER REPLACED THE BRAKE COMPONENTS. THE CURRENT MILEAGE WAS 18,000 AND THE FAILURE MILEAGE WAS 17,775. *UPDATED 12/12/07 *BF THE CONSUMER STATED REPLACED EXTERNAL TRANSMISSION. UPDATED 12/12/07 *TR

NHTSA ODI #10205232

7,500 miles · Sep 19, 2005
Service Brakes, Hydraulic

PASSENGER REAR BRAKE WAS DRAGGING. RECALL 04V084000 WAS ISSUED IN JANUARY. HE TOOK VEHICLE TO THE DEALER TO GET THE BRAKES CHECKED, AND THEY FIXED THE ONE THAT WAS DRAGGING. IN JUNE OTHER THREE BRAKES STARTED DRAGGING DUE TO SAME RECALL PROBLEM, IN JULY DEALER REPLACED OTHER THREE BRAKE CALIBERS BUT ONLY CLEANED BRAKE ROTORS. C…

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PASSENGER REAR BRAKE WAS DRAGGING. RECALL 04V084000 WAS ISSUED IN JANUARY. HE TOOK VEHICLE TO THE DEALER TO GET THE BRAKES CHECKED, AND THEY FIXED THE ONE THAT WAS DRAGGING. IN JUNE OTHER THREE BRAKES STARTED DRAGGING DUE TO SAME RECALL PROBLEM, IN JULY DEALER REPLACED OTHER THREE BRAKE CALIBERS BUT ONLY CLEANED BRAKE ROTORS. CURRENTLY, HE WAS TOLD TO BRING MOTOR HOME FOR SAME RECALL. MANUFACTURER KEPT SAYING BRING IT IN AND WE WILL LOOK AT IT. DEALER SAID THE CALIPERS WERE GETTING HOT, AND THEY REPLACED THEM, AND NEW BRAKE PADS WERE ADDED. CALLER SAID IT WAS REAL SLOW TO STOP. THIS WAS THE THIRD TIME CONTACT HAD TO BRING VEHICLE TO DEALER FOR THIS RECALL REPAIRS. REFER TO ODI#10130547. *JB

NHTSA ODI #10136999

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.