Model-level recall history

Mack CH recalls by year

Explore official NHTSA model-level records from 1987 through 2007. Choose a year to review consequences, remedies, campaign numbers, and instructions for that year and model.

87NHTSA recall records

34unique campaigns

20model years represented

Year-by-year record count

Recall history across model years

Affected systems

Frequently represented components

Component counts describe records in the NHTSA dataset, not failure rates.

Fuel system, diesel12 records across 3 unique campaigns

Fuel system, other: Storage: Tank assembly: Pressure relief devices10 records across 1 unique campaign

Power train: Driveline: Center support bearing6 records across 1 unique campaign

Trailer hitches: Fifth wheel assembly6 records across 1 unique campaign

Vehicle speed control6 records across 1 unique campaign

Fuel system, gasoline: Delivery: Hoses, lines/piping, and fittings4 records across 1 unique campaign

Seat belts: Front: Anchorage4 records across 1 unique campaign

Steering: Linkages: Tie rod assembly4 records across 3 unique campaigns

Suspension: Front: Hub4 records across 2 unique campaigns

Engine and engine cooling: Cooling system: Fan3 records across 1 unique campaign

Service brakes, air: Antilock3 records across 1 unique campaign

Steering: Hydraulic power assist: Hose, piping, and connections3 records across 2 unique campaigns

Steering: Linkages3 records across 1 unique campaign

Service brakes, air: Controls, pedals and linkages2 records across 1 unique campaign

Steering2 records across 2 unique campaigns

Steering: Steering wheel/handle bar2 records across 1 unique campaign

Steering: Linkages: Drag: Link: Connection2 records across 2 unique campaigns

Trailer hitches2 records across 1 unique campaign

Vehicle speed control: Accelerator pedal2 records across 1 unique campaign

Parking brake1 records across 1 unique campaign

Power train: Driveline: Universal joint1 records across 1 unique campaign

Service brakes, air1 records across 1 unique campaign

Service brakes, air: Controls: Foot control/valve1 records across 1 unique campaign

Service brakes, air: Supply: Check valve1 records across 1 unique campaign

Campaign history

Recently reported Mack CH campaigns

Campaigns are grouped across the model years represented on this page.

07V40100009/05/2007

ON CERTAIN TRUCKS EQUIPPED WITH ASET AC MODEL ENGINES, THE ENGINE AS CONFIGURED WITH AN EXTERNAL EXHAUST GAS RECIRCULATION SYSTEM MAKES SERVICING THE FUEL INJECTION LINES DIFFICULT WHEN USING TRADITIONAL TOOLS. THEREFORE, IT IS POSSIBLE FOR FUEL LEAKS TO DEVELOP WHEN REMOVING AND INSTALLING THE FUEL INJECTION LINES.

Model years in this history: 2007, 2006, 2005, 2004, 2003, 2002

Consequence and remedy

Consequence

A LEAK IN THE FUEL INJECTION LINE MAY SPRAY FUEL ON THE HOT SURFACES OF THE EXHAUST GAS RECIRCULATION SYSTEM, WHICH COULD RESULT IN AN ENGINE FIRE.

Remedy

DEALERS WILL REPLACE THE FUEL INJECTION LINES FREE OF CHARGE. NOTE: THIS RECALL SUPERSEDES A PREVIOUS CAMPAIGN CONDUCTED IN 2006 (PLEASE SEE 06V392). THE RECALL BEGAN ON SEPTEMBER 11, 2007, WITH SUBSEQUENT MAILINGS EVERY SIX WEEKS UNTIL APRIL 2008. OWNERS MAY CONTACT MACK AT 800-528-6586.

07V15900004/13/2007

CERTAIN TRUCKS WERE RECALLED FOR THE INSTALLATION OF SLEEVES ON THE FUEL INJECTION LINE AS REQUIRED BY SAFETY RECALL SC0317 (NHTSA RECALL NO. 06V392). THERE IS A POSSIBILITY THAT THE NEW SLEEVES MAY CHAFE THE FUEL INJECTION LINE.

Model years in this history: 2007

Consequence and remedy

Consequence

THIS COULD COMPROMISE THE FUEL INJECTION LINE OVER TIME WHICH COULD POSSIBLY RESULT IN AN ENGINE FIRE.

Remedy

DEALERS WILL REMOVE THE PROTECTIVE SLEEVES ON ALL FUEL INJECTION LINES FREE OF CHARGE. THIS RECALL BEGAN ON APRIL 19, 2007. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-528-6586.

06V39200010/13/2006

ON CERTAIN TRUCKS, A LEAK IN THE ASET AC FUEL INJECTION LINE MAY SPRAY FUEL ON THE EXHAUST GAS RECIRCULATION PIPES THAT CARRY HOT EXHAUST GASES .

Model years in this history: 2007, 2006, 2005, 2004, 2003

Consequence and remedy

Consequence

THIS COULD POTENTIALLY RESULT IN AN ENGINE FIRE.

Remedy

MACK HAS ISSUED A STOP WORK ON THIS CAMPAIGN UNDER FURTHER NOTICE (2-22-2007). THE REMEDY DOES NOT ADEQUATELY ADDRESS THE ISSUE ON ALL VEHICLES. MACK WILL RE-RELEASE THE RECALL IN THE NEAR FUTURE. (PLEASE SEE NHTSA NO. 07V159/MACK RECALL NO. SCO323 FOR VEHICLES THAT HAVE HAD THIS REPAIR ALREADY PERFORMED.) THIS RECALL HAS BEEN SUPERSEDED (PLEASE SEE 07V401/SC0324).

05V01500001/14/2005

ON CERTAIN HEAVY DUTY CLASS 8 DIESEL TRUCKS EQUIPPED WITH ASET AC ENGINES, THE LOCATION OF THE FUEL INLET HOSE MAY RESULT IN OVERHEATING OR ABRASION OF THE HOSE, WHICH MAY LEAD TO A PREMATURE FAILURE.

Model years in this history: 2005, 2004, 2003, 2002

Consequence and remedy

Consequence

IF THE HOSE FAILS, FUEL CAN BE SPRAYED ON THE EXHAUST MANIFOLD, WHICH COULD POTENTIALLY LEAD TO AN ENGINE COMPARTMENT FIRE.

Remedy

DEALERS WILL REPAIR AND REPLACE THE FUEL INLET HOSE FREE OF CHARGE. THE RECALL BEGAN ON FEBRUARY 14, 2005. DUE TO SOME QUALITY AND SUPPLY ISSUES WITH PARTS TO SUPPORT THIS SAFETY RECALL, OWNERS MAY HAVE BEEN INFORMED DURING APRIL 2005,THAT THE SAFETY RECALL WAS ON HOLD. THESE ISSUES HAVE NOW BEEN RESOLVED. FOR OWNERS WHO HAVE NOT HAD THEIR VEHICLE(S) REPAIRED, CONTACT A MACK PARTS AND SERVICE CENTER IMMEDIATELY TO SCHEDULE AN APPOINTMENT TO HAVE YOUR VEHICLE(S) REPAIRED. OWNERS MAY CONTACT MACK TRUCKS AT 610-709-2131.

04V45600009/20/2004

ON CERTAIN TRUCK CHASSIS, THE STEERING GEAR MOUNTING BOLTS WERE MADE OF INCONSISTENT BOLT MATERIAL, WHICH HAS LED TO BOLT FAILURES. THIS INCONSISTENT BOLT MATERIAL CONDITION COULD RESULT IN A FAILURE OF A STEERING GEAR MOUNTING BOLTS. THE STEERING GEAR IS MOUNTED TO THE VEHICLE'S FRAME WITH THREE BOLTS.

Model years in this history: 2003

Consequence and remedy

Consequence

FAILURE OF TWO OF THE THREE BOLTS COULD RESULT IN THE LOSS OF STEERING, WHICH COULD RESULT IN LOSS OF VEHICLE CONTROL AND CRASH WITHOUT WARNING.

Remedy

DEALERS WILL INSPECT VEHICLES. NEW STEERING GEAR MOUNTING BOLTS WILL BE INSTALLED. THE RECALL BEGAN OCTOBER 2004. OWNERS SHOULD CONTACT MACK AT 1-610-709-3337.

04V30900006/25/2004

ON CERTAIN TRUCK CHASSIS, THE STEERING GEAR MOUNTING BOLTS WERE OVER-TORQUED AT INSTALLATION. THE STEERING GEAR IS MOUNTED TO THE VEHICLE'S FRAME RAIL WITH 3 BOLTS.

Model years in this history: 2004

Consequence and remedy

Consequence

FAILURE OF TWO OF THE THREE BOLTS COULD RESULT IN THE LOSS OF STEERING, WHICH COULD RESULT IN LOSS OF VEHICLE CONTROL, INCREASING THE RISK OF A CRASH .

Remedy

DEALERS WILL INSPECT VEHICLES. NEW STEERING GEAR MOUNTING BOLTS WILL BE INSTALLED. THE RECALL BEGAN OCTOBER 2004. OWNERS SHOULD CONTACT MACK AT 1-610-709-3337.

04V15900004/07/2004

ON CERTAIN CHASSIS BUILT WITH LNG ENGINES, THE NEXGEN LNG TANK'S PRIMARY AND SECONDARY RELIEF VALVES COULD FAIL TO OPEN AND RELIEVE TANK PRESSURE.

Model years in this history: 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995

Consequence and remedy

Consequence

THIS COULD CAUSE ICE BUILDUP ON THE DISCHARGE SIDE OF THE PRIMARY AND SECONDARY PRESSURE SYSTEM ALLOWING THE RELIEF SYSTEM TO FREEZE AND BECOME BLOCKED RESULTING IN OVER PRESSURIZATION OF THE LNG TANKS CREATING THE RISK OF CATASTROPHIC TANK RUPTURE WHICH COULD CAUSE SERIOUS INJURY OR DEATH.

Remedy

DEALERS WILL RETROFIT THE LNG TANKS WITH A NEW PRIMARY RELIEF VALVE PIPE AWAY TUBE AND A NEW VENTILATED SHROUD. THE RECALL BEGAN APRIL 6, 2004. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 1-610-709-3337.

03V52200012/11/2003

ON CERTAIN CHASSIS EQUIPPED WITH DANA STEERING AXLE ASSEMBLIES. THESE AXLES ARE BUILT WITH AN INTEGRAL KNUCKLE AND STEERING ARM. THE STEERING ARM COULD HAVE LONGITUDINAL CRACKS.

Model years in this history: 2003

Consequence and remedy

Consequence

THE BALL STUD COULD BECOME LOOSE, CAUSING LOSS OF STEERING CONTROL WHICH COULD RESULT IN A CRASH.

Remedy

DEALERS WILL INSPECT THE INTEGRAL KNUCKLE AND STEER ARM AND REPLACE IF NECESSARY. OWNER NOTIFICATION BEGAN ON JANUARY 16, 2004. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 1-610-709-3337.

03V25300007/17/2003

CERTAIN HEAVY DUTY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS." IMPROPER SEATING OF THE CHECK VALVE RETAINER IN THE BRASS FITTING HOUSING HAS OCCURRED. IT IS POSSIBLE FOR THE AIR BRAKE SYSTEM PRESSURE TO PUSH THE CHECK VALVE INTERNAL PARTS INTO THE PRIMARY SYSTEM RESERVOIR AND A VEHICLE OPERATOR WOULD NOT KNOW THAT THIS HAS HAPPENED.

Model years in this history: 2003

Consequence and remedy

Consequence

IN THIS CONDITION, THE VEHICLE WOULD NOT MEET THE EMERGENCY REQUIREMENTS OF THE STANDARD.

Remedy

DEALERS WILL REPLACE THE CHECK VALVE. OWNER NOTIFICATION BEGAN NOVEMBER 26, 2003. OWNERS SHOULD CONTACT MACK AT 1-610-709-3337.

03V20100006/03/2003

ON CERTAIN HEAVYTRUCKS EQUIPPED WITH TRUCK HUB UNITS MANUFACTURED BY SKF EXCLUSIVELY FOR USE ON ARVINMERITOR'S FF98X SERIES NON-DRIVE STEER AXLES, THE HUB UNIT BEARINGS CAN WEAR PREMATURELY.

Model years in this history: 2001, 1999, 1998

Consequence and remedy

Consequence

SEIZURE OF THE BEARINGS CAN CAUSE WHEEL SEPARATION OR WHEEL END FIRE.

Remedy

DEALERS WILL REPLACE ALL FRONT AXLE HUBS. OWNER NOTIFICATION BEGAN ON OACTOBER 14, 2003. CUSTOMERS WILL BE INFORMED OF PARTS AVAILABILITY BY OCTOBER 3, 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 610-709-3337.

02V32100211/26/2002

ON CERTAIN TRUCKS EQUIPPED WITH MANIFOLD DASH VALVES WITH PUSH TO CONNECT FITTINGS USED TO CONTROL THE PARK BRAKE FUNCTION ON TRUCKS AND TRAILERS WITH AIR BRAKES, THE PARK KNOB CAN POP OUT UNEXPECTEDLY WHILE THE VEHICLE IS IN MOTION. THIS WILL EXHAUST THE AIR FROM THE PARK BRAKE SYSTEM ON THE TRAILER AND APPLY THE PARKING BRAKES.

Model years in this history: 2002

Consequence and remedy

Consequence

IF THIS CONDITION IS NOT NOTICED, THE DRIVER COULD LOSE CONTROL OF THE VEHICLE, POSSIBLY RESULTING IN A VEHICLE CRASH.

Remedy

HALDEX HAS NOTIFIED ITS CUSTOMERS TO MAKE ARRANGEMENTS TO HAVE THE VALVE INSPECTED AND, IF NECESSARY, REPLACED FREE OF CHARGE. OWNER NOTIFICATION IS EXPECTED TO BEGIN DURING JANUARY 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT HALDEX BRAKE SYSTEMS AT 816-801-2641 OR MACK AT 1-610-709-3337.

02V26900010/03/2002

CERTAIN CLASS 8 CHASSIS FAIL TO COMPLY WITH REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS." THE INSTALLATION OF THE ADDITIONAL AXLE(S), RAISES THE GVW CAPABILITY OF THE VEHICLE AND THEREFORE REQUIRES AN INCREASE IN THE PARKING BRAKE PERFORMANCE TO HOLD ON A 20% GRADE IN ORDER TO MEET THE REQUIREMENTS OF THE STANDARD.

Model years in this history: 2002

Consequence and remedy

Remedy

DEALERS WILL MODIFY THE PARK BRAKE CONFIGURATION ON THESE VEHICLES. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 1-610-709-3337.

02V03700608/15/2002

ON SOME HEAVY DUTY CLASS 8 VEHICLES EQUIPPED WITH ARVINMERITOR AXLE ASSEMBLIES WHICH MAY HAVE BEEN MANUFACTURED WITH TRW MODEL 20EDL BALL SOCKETS, THE TIE ROD BALL-SOCKET BEARINGS HAVE A BELOW SPECIFICATION CASE DEPTH AND/OR HARDNESS WHICH CAN LEAD TO PREMATURE WEAR OUT OF THE SOCKET IN SOME APPLICATIONS.

Model years in this history: 2000, 1999

Consequence and remedy

Consequence

IF THIS CONDITION OCCURS, THE DRIVER CAN LOSE STEERING CONTROL, POSSIBLY RESULTING IN A VEHICLE CRASH.

Remedy

DEALERS WILL REPLACE THE BALL SOCKET ASSEMBLIES. THIS CAMPAIGN WILL SUPERSEDE NHTSA RECALL NOS. 01V-140-005 (MACK SC0270) AND 00V-246-103 (MACK SC0262). OWNER NOTIFICATION BEGAN DECEMBER 27, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 610-709-3337.

02V21800008/05/2002

ON CERTAIN CLASS 8 CHASSIS EQUIPPED WITH R. H. SHEPPARD "M100" STEERING GEARS AND TRW "TAS65" STEERING GEARS, A POWER STEERING HOSE WITH AN INCORRECT PRESSURE RATING WAS INSTALLED BY THE FACTORY.

Model years in this history: 2002

Consequence and remedy

Consequence

THE HOSE, WHICH CONNECTS THE POWER STEERING PUMP TO THE STEERING GEAR, COULD BURST OR LEAK, WHICH COULD RESULT IN THE LOSS OF POWER STEERING ASSIST.

Remedy

DEALERS WILL REPLACE THE POWER STEERING HOSE. OWER NOTIFICATION BEGAN JUNE 20, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 1-610-709-3337.

02V01900001/18/2002

ON CERTAIN CLASS 8 HEAVY DUTY TRUCKS EQUIPPED WITH R. H. SHEPPARD M90 STEERING GEARS, AN INCORRECT HOSE WAS USED FOR THE HIGH-PRESSURE LINE BETWEEN THE POWER STEERING PUMP AND THE STEERING GEAR. THE HOSE IS RATED AT 2000 PSI, WHILE IT SHOULD BE RATED AT 3000 PSI.

Model years in this history: 2001, 2000

Consequence and remedy

Consequence

THIS HOSE COULD DEVELOP A LEAK OR BURST WHILE IN SERVICE. SHOULD THE LINE BURST, STEERING CONTROL WOULD STILL BE MAINTAINED, BUT A LOSS OF POWER ASSIST WILL BE EXPERIENCED.

Remedy

DEALERS WILL REPLACE THE STEERING HOSE. OWNER NOTIFICATION BEGAN MARCH 22, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 1-610-709-3011.

01V38900012/21/2001

VEHICLE DESCRIPTION: TRUCKS EQUIPPED WITH E-TECH ENGINES. A CONDITION EXISTS ON THE AUXILIARY DRIVE SHAFT OF THE E-TECH ENGINE THAT CAUSES THE LOSS OF POWER STEERING ON VEHICLES WHERE THE POWER STEERING PUMP IS MOUNTED OFF THE FRONT OF THE ENGINE.

Model years in this history: 2001

Consequence and remedy

Consequence

THIS COULD RESULT IN THE LOSS OF POWER STEERING.

Remedy

DEALERS WILL INSPECT THE VEHICLES AND REPLACE THE NUT THAT HOLDS THE GEAR TO THE AUXILIARY DRIVE SHAFT. OWNER NOTIFICATION BEGAN MARCH 22, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 1-610-709-3011.

01V14000509/24/2001

VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH TRW TIE ROD ENDS ON CERTAIN DANA/SPICER AXLES (E12001) AND MACK AXLES THROUGH DANA HEAVY AXLE (FAWL 12). THE TIE ROD AND DRAG LINK BALL STUD ENDS CONTAIN BEARINGS THAT ARE BELOW THE SPECIFIED CASE DEPTH AND/OR HARDNESS.

Model years in this history: 2000

Consequence and remedy

Consequence

THIS CAN LEAD TO PREMATURE WEAR WITH POSSIBLE SEPARATION OF THE BALL STUD FROM THE SOCKET, INCREASING THE RISK OF LOSS OF CONTROL OF THE VEHICLE.

Remedy

DEALERS WILL REMOVE AND REPLACE ALL AFFECTED TIE RODS AND DRAG LINKS WITH DIFFERENT DESIGNED ENDS. TRUCKS THAT HAVE BEEN REPAIRED UNDER RECALL 00V246103/SC0262 WILL NOT BE RE-RECALLED. TRUCKS ONLY INSPECTED AND DETERMINED TO HAVE AN ACCEPTABLE DATE CODE UNDER SC0262 WILL BE RECALLED UNDER THIS CAMPAIGN. OWNER NOTIFICATION BEGAN JANUARY 8, 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 1-610-709-3011.

01V18900408/01/2001

VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH CERTAIN MERITOR-WABCO BRAKE SYSTEM TWO AND FOUR PORT RELAY VALVES. THE VALVE MAY STICK OPEN WHEN A HIGH-PRESSURE APPLICATION IS RELEASED.

Model years in this history: 2001, 2000

Consequence and remedy

Consequence

WHEN THE VALVE STICKS OPEN, IT CAN RESULT IN A TOTAL LOSS OF AIR FROM EITHER THE SERVICE OR THE PARK BRAKE SYSTEM. THE DRIVER MAY LOSE BRAKING ABILITY UNDER A SERVICE APPLICATION, POSSIBLY RESULTING IN A VEHICLE CRASH.

Remedy

DEALERS WILL REPLACE THESE VALVES. OWNER NOTIFICATION BEGAN NOVEMBER 16, 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 1-610-709-3011 OR MERITOR WABCO AT 800-535-5560.

01V04420703/14/2001

VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH DRAG LINK ASSEMBLIES CONTAINING 24-DL MODEL BALL SOCKETS AND MANUFACTURED BY TRW. CERTAIN OF THE TIE ROD BALL-SOCKET BEARINGS HAVE A BELOW-SPECIFICATION CASE DEPTH AND/OR HARDNESS, WHICH CAN LEAD TO PREMATURE WEAR OF THE SOCKET.

Model years in this history: 1999

Consequence and remedy

Consequence

IF THIS CONDITION OCCURS, THE DRIVER CAN LOSE PARTIAL CONTROL OF THE RIGHT FRONT WHEEL, POSSIBLY RESULTING IN A CRASH.

Remedy

DEALERS WILL REPLACE THE DEFECTIVE DRAG LINKS. OWNER/DISTRIBUTOR NOTIFICATION BEGAN AUGUST 30, 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 1-610-709-3011 OR TRW CUSTOMER SERVICE AT 1-866-280-3287.

00V23000310/04/2000

VEHICLE DESCRIPTION: CLASS 8 TRUCKS EQUIPPED WITH FELSTED ELECTRONIC ACCELERATOR PEDALS. THE RETURN SPRINGS CAN BREAK ON THE ACCELERATOR PEDALS THAT ARE EQUIPPED WITH STAINLESS STEEL OR ELECTROPLATED WIRE RETURN SPRINGS.

Model years in this history: 2000, 1999

Consequence and remedy

Consequence

THIS CONDITION COULD CAUSE THE PEDAL TO GO TO FULL THROTTLE IF BOTH RETURN SPRINGS BREAK, INCREASING THE RISK OF A CRASH.

Remedy

REPLACEMENT ACCELERATOR PEDALS EQUIPPED WITH RETURN SPRINGS MANUFACTURED OF MUSIC WIRE WITH ONE ADDITIONAL COIL ON EACH SPRING AND WITH AN ORGANIC COATING, ELIMINATING ELECTROPLATING WILL BE INSTALLED.

00V24610310/04/2000

VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH TRW TIE ROD ENDS ON CERTAIN MERITOR AXLES. THE TIE ROD AND DRAG LINK BALL STUD ENDS CONTAIN BEARINGS THAT ARE BELOW THE SPECIFIED CASE DEPTH AND/OR HARDNESS.

Model years in this history: 1999

Consequence and remedy

Consequence

THIS CAN LEAD TO PREMATURE WEAR WITH POSSIBLE SEPARATION OF THE BALL STUD FROM THE SOCKET, INCREASING THE RISK OF LOSS OF CONTROL OF THE VEHICLE.

Remedy

DEALERS WILL REMOVE AND REPLACE ALL AFFECTED TIE RODS AND DRAG LINKS WITH DIFFERENT DESIGNED ENDS.

00V23200909/13/2000

VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS BUILT WITH BENDIX AIR ABS WITH AN EC-17 1030R ELECTRONIC CONTROL UNIT (ECU), THERE HAVE BEEN REPORTS OF UNWANTED ABS ACTIVATION AT LOW SPEEDS CAUSED BY 1) CHAFED ABS WHEEL SPEED SENSOR WIRES ON ROTATING PARTS OR 2) A DAMAGED COMPONENT AT THE WHEEL END THAT GENERATES A CERTAIN TYPE OF ERRATIC SENSOR SIGNAL.

Model years in this history: 2000, 1999, 1998

Consequence and remedy

Consequence

THIS CONDITION COULD CAUSE THE ABS ECU TO EXHAUST THE AIR AT THE AIR BRAKE MODULATORS FOR ONE OR MORE OF THE WHEELS. THIS COULD RESULT IN EXTENDED BRAKING DISTANCES AND A POSSIBLE CRASH.

Remedy

DEALERS WILL REPLACE THE ABS ECU.

00V01900305/11/2000

VEHICLE DESCRIPTION: HEAVY DUTY CLASS 8 TRUCKS EQUIPPED WITH FONTAINE FIFTH WHEEL ASSEMBLIES. THE FIFTH WHEEL MOUNTING PLATES CAN CRACK.

Model years in this history: 1993, 1992, 1991, 1990, 1989, 1988

Consequence and remedy

Consequence

UNDER THE TRAILER LOADING, THE MOUNTING PLATE COULD EVENTUALLY FAIL DUE TO FATIGUE.

Remedy

DEALERS WILL INSPECT AND REPLACE THE MOUNTING PLATES THAT ARE CRACKED.

97V19600512/29/1997

VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH DESIGN LEVEL 1, ROCKWELL FF980 SERIES FRONT AXLE. THE FRONT AXLE HUB FLANGE CAN DEVELOP CRACKS DUE TO HIGH STRESS LEVELS.

Model years in this history: 1996

Consequence and remedy

Consequence

CRACKS IN A HUB FLANGE CAN RESULT IN A WHEEL SEPARATION.

Remedy

DEALERS WILL REMOVE AND REPLACE THE FRONT HUBS WITH AN IMPROVED DESIGN LEVEL 2 HUB.

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