Showing 432 recalls for MACK
CERTAIN CLASS 8 CHASSIS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." FRONT DRIVE AXLES WERE INSTALLED BY THE MACUNGIE MODIFICATION CENTER. WITH THE INSTALLATION OF THE AXLE, THE OVERALL HEIGHT OF THE FRONT OF THE VEHICLE WAS RAISED.
40 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: THIS CAN CAUSE THE NONCOMPLIANCE.
Remedy: A SET OF LAMPS WILL BE MOUNTED BELOW THE BUMPER, BRINGING THE LAMP HEIGHT INTO COMPLIANCE. THE EXISTING LAMPS IN THE HOOD WILL BE REMOVED AND DECORATIVE COVERS WILL BE INSTALLED TO COVER THE HOLES IN THE HOOD. OWNER NOTIFICATION BEGAN OCTOBER 4, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZ...
ON CERTAIN TRUCKS EQUIPPED WITH MERITOR WABCO PNEUMATIC ANITLOCK BRAKE SYSTEM (ABS) VALVE PACKAGES, THE ASSEMBLY BOLTS ON THESE VALVE PACKAGES WERE NOT TIGHTENED CORRECTLY.
100 vehicles affected
Manufacturer: MACK TRUCKS, INC.
Consequence: BOLTS TORQUED BELOW SPECIFICATION WILL NOT RELIABLY PREVENT AIR LEAKAGE AT THE AFFECTED ABS VALVE PACKAGE INTERFACE JOINTS ONCE THE COMPONENT BEGINS NORMAL VEHICLE OPERATION. IF AIR LEAKS DEVELOP AT ANY OF THE ABS VALVE PACKAGE INTERFACE JOINTS, BRAKE SYSTEM PRESSURE REDUCTIONS COULD OCCUR DURING B...
Remedy: DEALERS WILL TIGHTEN THE FASTENERS TO THE PROPER SPECIFICATION. OWNER NOTIFICATION BEGAN JUNE 13, 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 1610-709-3337..
ON CERTAIN HEAVY DUTY TRUCKS EQUIPPED WITH DANA SPICER TANDEM DRIVE AXLE MODELS DS463, AN UNDERSIZED ATTACHMENT WELD MAY FRACTURE WITHOUT WARNING.
213 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: THE LOSS OF THIS ATTACHMENT TO THE VEHICLE CHASSIS CAN ADVERSELY AFFECT VEHICLE HANDLING OR DRIVER CONTROL.
Remedy: THE DEALERS WILL REMOVE THE SUSPECT BRACKET, INSPECT THE AXLE HOUSING, AND REWELD THE BRACKET TO THE AXLE HOUSING. OWNER NOTIFICATION BEGAN APRIL 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 T...
MACK CH (2000) - STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS
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.
869 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
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.
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.
7,500 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
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...
VEHICLE DESCRIPTION: CLASS A HEAVY DUTY TRUCKS WITH 18,000 LB. FRONT AXLES MAY HAVE FRONT SPRINGS INSTALLED THAT ARE RATED FOR THE 14,600 LB. FRONT AXLE.
483 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: FRONT SPRING FAILURE COULD RESULT IN LOSS OF VEHICLE CONTROL.
Remedy: DEALERS WILL REPLACE BOTH SPRINGS. OWNER NOTIFICATION BEGAN DECEMBER 26, 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.
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.
8,794 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
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 CAM...
VEHICLE DESCRIPTION: CHASSIS BUILT WITH A JACOBS VEHICLE SYSTEMS ELECTRONIC CONTROLLER FOR THE ELECTRIC DRIVELINE BRAKE SYSTEM. A FAILURE MODE WITHIN THE SOLID STATE CONTROLLER CAN CAUSE A SHORT FROM THE POSITIVE TERMINAL TO THE NEGATIVE TERMINAL OF THE BATTERY.
4 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: UNDER THIS CONDITION, THE CONTROLLER COULD IGNITE CAUSUING A FIRE WITHOUT WARNING, POSSIBLE CAUSING INJURY TO THE VEHICLE OCCUPANT(S).
Remedy: CUSTOMERS ARE BEING NOTIFIED TO CONTACT JVS TO ARRANGE FOR A FREE REPAIR AT A LOCAL AUTHORIZED DEALER. OWNER NOTIFICATION BEGAN AUGUST 23, 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 SHOUL...
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.
8,268 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
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.
VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH TIE ROD 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.
1,484 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
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 TIE RODS. OWNER NOTIFICATION BEGAN JULY 13, 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...
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.
4,247 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
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 CUSTO...
VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS. INCORRECT PRESSURE RATED POWER STEERING HOSES WERE INSTALLED.
56 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: THE HOSE THAT CONNECTS THE POWER STEERING PUMP TO THE STEERING GEAR CAN BURST OR LEAK RESULTING IN THE LOSS OF POWER STEERING ASSIST.
Remedy: DEALERS WILL REPLACE THE POWER STEERING HOSE. OWNER NOTIFICATION BEGAN APRIL 26, 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.
VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS. THE STEERING GEAR FASTENERS WERE INCORRECTLY TIGHTENED AND CAN WORK LOOSE.
35 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: THIS CONDITION COULD RESULT IN A LOSS OF STEERING CONTROL, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REMOVE, DEGREASE, AND RETORQUE STEERING GEAR MOUNTING BOLTS.
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.
6,244 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
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.
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.
45,866 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
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.
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.
651 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
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.
VEHICLE DESCRIPTION: HEAVY DUTY CLASS 8 TRUCKS EQUIPPED WITH FONTAINE FIFTH WHEEL ASSEMBLIES. THE FIFTH WHEEL MOUNTING PLATES CAN CRACK.
90 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
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.
VEHICLE DESCRIPTION: CERTAIN HEAVY DUTY TRUCKS FAIL TO COMPLY WITH REQUIREMENTS OF FMVSS NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THE HEADLAMP ASSEMBLIES HAVE THE BULB IDENTIFICATION FOR THE LOW AND HIGH BEAM REVERSED ON THE FRONT LENS.
709 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: THE HEADLIGHT ASSEMBLIES DO NOT MEET THE REQUIREMENTS OF THE STANDARD.
Remedy: OWNERS WILL BE PROVIDED WITH A CORRECT LABEL, ALONG WITH INSTALLATION INSTRUCTIONS.
VEHICLE DESCRIPTION: CLASS 8 HEAVY DUTY TRUCK CHASSIS EQUIPPED WITH MACK 16,000 LB., 18,000 LB., OR 20,000 LB. HEAVY DUTY STEERING AXLES. THE INNER WHEEL BEARING CONE FOR THE STEERING AXLE WHEEL HUB ASSEMBLY DOES NOT PROPERLY FIT ONTO THE MACK STEERING AXLE SPINDLE ASSEMBLY. IMPROPER FIT OF THE BEARING TO THE SPINDLE INCREASES THE STRESS LEVELS TO THE STEERING AXLE SPINDLE WHICH COULD CAUSE SP...
8,025 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: IF THE SPINDLE FAILS, A LOSS OF DRIVER CONTROL COULD OCCUR, INCREASING THE RISK OF A VEHICLE CRASH.
Remedy: DEALERS WILL REMOVE THE LEFT AND RIGHT HUB/DRUM ASSEMBLIES FROM THE STEERING AXLES AND REPLACE THE INNER WHEEL BEARING CONES AND CUPS.
VEHICLE DESCRIPTION: FRONT DISCHARGE, REAR ENGINE MIXERS. THE FAN DRIVE PULLEY THAT ATTACHES TO THE WATER PUMP CAN SHOW EXCESSIVE AXIAL RUNOUT CAUSING THE FAN AND PART OF THE FAN DRIVE TO SEPARATE FROM THE DRIVE PULLEY.
62 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: THE FAN CAN CAUSE OTHER VEHICLE DAMAGE. IF THE HOOD IS OPEN AT THE TIME OF FAN FAILURE, FRAGMENTS PROPELLED COULD CAUSE POSSIBLE PERSONAL INJURY TO PERSONS SERVICING THE ENGINE OR STANDING NEARBY.
Remedy: DELERS WILL INSPECT THE WATER PUMP AND, IF NECESSARY, REPLACE THE PUMP.
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.
103 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
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.
VEHICLE DESCRIPTION: CLASS 8 HEAVY DUTY TRUCKS. DURING ASSEMBLY, INSUFFICIENT TORQUE OCCURRED OF THE DRAG LINK TO THE AXLE STEERING ARM CONNECTION. IF THE DRAG LINK TO AXLE STTERING ARM CONNECTION IS NOT TORQUED AND THE COTTER PIN IS NOT INSTALLED, THE NUT COULD BACK OFF DURING VEHICLE OPERATION.
10,438 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: IF THE NUT BACKS OFF, THERE COULD BE A LOSS OF DRIVER CONTROL.
Remedy: DEALERS WILL RETORQUE THE DRAG LINK TO THE AXLE STEERING ARM CONNECTION.
VEHICLE DESCRIPTION: FRONT DISCHARGE MIXER CHASSIS. THE ORIGINAL EQUIPMENT MITER BOXES HAVE NO PROTECTIVE BOOTS ON THE SHAFTS AND DIRT CAN ENTER THE SYSTEM CAUSING THE GEAR SHAFT BEARINGS TO DETERIORATE.
109 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: THE BEARING DETERIORATION CAN CAUSE THE STEERING TO LOCK UP RESULTING IN LOSS OF STEERING CONTROL.
Remedy: DEALERS WILL REPLACE THESE MITER BOXES.
EQUIPMENT DESCRIPTION: ELECTRONIC CONTROL MODULES INSTALLED ON A MACK REFUSE TRUCK. THE ELECTRONIC CONTROL MODULE (ECM) IN THESE ENGINES CONTAIN A MANUFACTURING DEFECT WHICH RESULTS IN INTERMITTENT ELECTRICAL CONTACT AND CAUSES INCORRECT ELECTRONIC SIGNALS TO BE SENT TO THE ENGINE THROTTLE CONTROL.
1 vehicles affected
Manufacturer: MESA
Consequence: THIS CONDITION CAN CREATE THE POTENTIAL FOR SUDDEN ACCELERATION OR DECELERATION OF THE ENGINE INCREASING THE RISK OF A CRASH.
Remedy: DUE TO THE POTENTIAL SERIOUS CONSEQUENCES, THE TRUCK THAT HAS THIS ECM INSTALLED HAS BEEN REMOVED FROM SERVICE.
THE U-JOINT BEARING STRAP BOLTS WERE NOT PROPERLY TIGHTENED DURING ASSEMBLY.
1,590 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: INSUFFICIENT TORQUE CAN LEAD TO A BROKEN STRAP. IF THE STRAP BREAKS, THE DRIVESHAFT WOULD WOBBLE, POSSIBLY RESULTING IN SEPARATION. SUCH WOBBLING OR SEPARATION WOULD RESULT IN DAMAGE TO OTHER COMPONENTS OF THE VEHICLE AND ANY LOOSE FRAGMENT COULD FALL TO THE ROADWAY PRESENTING A HAZARD TO FOLLOWIN...
Remedy: DEALERS WILL INSTALL A NEW U-JOINT BEARING STRAP BOLTS.
THESE WHEELS ARE COMPOSED OF 2 PIECES - A DISC AND A RIM WHICH ARE NORMALLY WELDED TOGETHER. THESE WHEELS LACK THE SPECIFIED FILLET WELDS.
62 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: IF WHEEL SEPARATION OCCURS WHILE THE VEHICLE IS INMOTION, BOTH STEERING AND BRAKING COULD BE AFFECTED RESULTING IN A VEHICLECRASH.
Remedy: DEALERS WILL INSPECT THE MANUFACTURING CODES STAMPED ON EACH WHEEL AND IF A WHEEL FALLS WITHIN THE SPECIFIED DATE CODE RANGE, THE DEALER WILL REPLACE THAT WHEEL.
MACK CH (1992) - SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS
AIR SYSTEM BLOCKAGE IN THE AIR DRYER OCCURS DEGRADING THE MOISTURE REMOVING CAPABILITIES OF THE DRYER WHEN THE VEHICLE IS OPERATED IN A COLD ENVIRONMENT AND MOISTURE ACCUMULATES AND FREEZES IN THE AIR DRYER OR IN THE LINE BETWEEN THE DRYER AND THE AIR SYSTEM RESERVOIR. THE AIR DRYER CAN BECOME OVERPRESSURIZED CAUSING THE AIR DRYER CARTRIDGE TO SEPARATE FROM THE MOUNTING BASE.
1,224 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: IF THE AIR DRYER SEPARATES FROM THE BASE, THE CARTRIDGE CAN SEPARATE SUFFICIENTLY ENOUGH TO CAUSE PERSONAL INJURY OR PROPERTY DAMAGE.
Remedy: DEALERS WILL EQUIP AIR SYSTEMS WITH A PRESSURE RELIEF VALVE TO BE LOCATED BETWEEN THE COMPRESSOR AND THE AIR DRYER. THIS PRESSURE RELIEF VALVE IS INTENDED TO VENT IF EXCESSIVE PRESSURE DEVELOPS IN THE AIR DRYER.
THE DRIVESHAFT CENTER BEARING SUPPORT BRACKET CAN CRACK AND BREAK.
17,720 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: IF THIS HAPPENS, THE DRIVESHAFT WILL WOBBLE AND CAN SEPARATE. SEPARATION CAN RESULT IN DAMAGE TO OTHER COMPONENTS OF THE VEHICLE OR LOOSE FRAGMENTS CAN FALL ONTO THE ROADWAY PRESENTING A HAZARD TO OTHER DRIVERS.
Remedy: DEALERS WILL REPLACE THE CENTER BEARING HANGER BRACKET.
THE STEERING GEARBOX MOUNTING FASTENERS WERE NOT PROPERLY HEAT TREATED.
204 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: THE FASTENER WASHERS CAN CRACK, ULTIMATELY RESULTING IN GEARBOX MOUNTING ASSEMBLY FAILURE AND LOSS OF STEERING CONTROL.
Remedy: DEALERS WILL REPLACE THE SUSPECT WASHERS WITH NEW, IMPROVED WASHERS.
THE STEERING ARM CAN DEVELOP CRACKS CAUSING THE LEVER TO BREAK WITHOUT WARNING.
321 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: THIS CAN RESULT IN LOSS OF STEERING CONTROL AND AN ACCIDENT.
Remedy: DEALERS WILL REPLACE THE STEERING LEVERS WITH AN IMPROVED STEERING LEVER WITH INCREASED FATIGUE STRENGTH.
THE HAND THROTTLE CABLE PASSES THROUGH THE ACCELERATOR ROD ASSEMBLY AT AN ANGLE THAT WEARS A GROOVE IN THE ROD, WHICH IS LOCATED UNDER THE ACCELERATOR PEDAL. THE CABLE CAN BECOME WEDGED IN THE GROOVE WORN INTO THE ROD AND CAUSE THE ACCELERATOR TO STICK IN AN OPEN POSITION.
7,350 vehicles affected
Manufacturer: BLUE BIRD BODY COMPANY
Consequence: THIS CAN RESULT IN LOSS OF CONTROL OF THE BUS, AND COULD RESULT IN AN ACCIDENT.
Remedy: DEALERS WILL INSTALL A POSITIONING BRACKET FOR ROUTING THE HAND THROTTLE CABLE THROUGH THE ACCELERATOR ROD ASSEMBLY.
FUEL INJECTION SYSTEM RECONFIGURATION TO COMPLY WITH ENGINE EMISSION STANDARDS CAUSE HIGHER ENGINE VIBRATION LEVELS WHICH LEAD TO EARLY WEAR AND COMPLETE FAILURE OF THE SECONDARY THROTTLE RETURN MECHANISM.
39,777 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: IN THE EVENT THE PRIMARY THROTTLE RETURN FAILS, FAILURE OF THE SECONDARY THROTTLE RETURN SYSTEM WOULD NOT PROVIDE PROTECTION AGAINST LOSS OF THROTTLE CONTROL.
Remedy: A NEW PRODUCTION SECONDARY THROTTLE RETURN SYSTEM CONFIGURATION WILL BE INSTALLED.
THE DRIVESHAFT TO THE FRONT DRIVING AXLE IS SECURED TO A BRACKET USING TWO PILLOW BLOCKS. THESE BLOCKS ARE OF INSUFFICIENT STRENGTH TO SUPPORT THE DRIVESHAFT AND COULD FAIL.
130 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: PILLOW BLOCK FAILURE ALLOWS THE DRIVELINE (JACKSHAFT)TO DROP DOWN ONTO THE ROADWAY AND CREATE A SAFETY HAZARD TO OTHER VEHICLES.
Remedy: MACK WILL INSTALL THICKER PILLOW BLOCKS AND SUPPORT U-BOLTS.
THE ENGINE COOLING FAN BLADES MAY BREAK DUE TO INADEQUATE BLADE STRENGTH AROUND THE RIVETS THAT ATTACH THE BLADES TO THE FAN SPIDER.
11,000 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: IF COMPLETE FRACTURE OF THE FAN BLADE OCCURS, IT COULDBE PROPELLED OUTSIDE THE FAN SHROUD, INJURING PERSON(S) IN THE VICINITY OFTHE TRUCK.
Remedy: AN IMPROVED FAN WILL BE INSTALLED ON THESE VEHICLES.
THE CARRIER YOKE BOLTS WERE MANUFACTURED WITH WORN ROLLING THREAD DIES, CAUSING STRESS CONCENTRATIONS WHICH CAUSED CRACKS DURING THE QUENCHING PROCESS.
4,924 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: THIS CONDITION CAN CAUSE BOLT FAILURE AND ALLOW THEDRIVELINE TO SEPARATE FROM THE CARRIER ASSEMBLY.
Remedy: REPLACE THE CARRIER YOKE BOLTS.
THE CROSS STEERING LEVERS INTERCONNECTING THE LEFT AND RIGHT HAND STEERING KNUCKLES TO MAINTAIN ALIGNMENT WERE MANUFACTURED FROM INFERIOR MATERIALS AND FAIL IN LOW IMPACT SITUATIONS.
5,500 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: FAILURE OF THE CROSS STEERING LEVERS CAN RESULT IN LOSSOF STEERING CONTROL AND A VEHICLE ACCIDENT.
Remedy: REPLACE THE CROSS STEERING LEVERS.
MACK MR (1989) - POWER TRAIN:MANUAL TRANSMISSION:SHIFT PATTERN INDICATOR
THE STONE BENNETT SHIFTERS DO NOT INDICATE THE RELATIVE POSITION OF THE SHIFT LEVER TO THE DRIVER.
308 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: THE SHIFT LEVER DOES NOT MEET THE REQUIREMENTS OF FMVSS102.
Remedy: INSTALL A DECAL DISPLAYING THE RELATIVE SHIFT POSITIONS.
LAP AND SHOULDER SEAT BELT ARRANGEMENT FOR FIXED (NON-SUSPENSION) SEATS DOES NOT MEET THE SEAT BELT LOADING REQUIREMENTS OF FMVSS 210. THE INBOARD CLINCH NUT IN CAB SILL, WHERE THE BUCKLE FOR THE SHOULDER AND LAP BELT IS MOUNTED, PULLED OUT OF THE SILL DURING THE TESTS. CONSEQUENCE OF DEFECT: IF SEAT BELT ANCHIRAGE FAILS, THE SEAT OCCUPANT FACES AN INCREASED RISK OF INJURY IN AN ACCIDENT OR SUD...
4,000 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Remedy: RELOCATE THE INBOARD SEAT BELT MOUNTING FROM TOP OF THE SILL TO THE FORWARD FLANGE OF THE SILL ON THE CAB FLOOR, AND ADD A 3MM FILLET WELD AROUND THE 2 INBOARD CLINCH NUTS.
INCORRECT MANUFACTURE OF THE HYDROBOOST CYLINDER ALLOWS THE BALL SOCKET CLAMP TO CONTACT RIGHT SIDE STEERING LEVER ON AN EXTREME LEFT TURN AND CAUSE FLEXING OF THE CYLINDER ROD .
35 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: THIS FLEXING CAN CAUSE SEAL FAILURE OR CYLINDER FAILUREOF THE HYDROBOOST UNIT AND RESULT IN LOSS OF STEERING CONTROL AND RESULT IN AVEHICLE ACCIDENT.
Remedy: REPLACE INCORRECTLY BUILT BOOST CYLINDERS.
STRESSES IMPOSED ON THE LEVER DURING TURNING MANEUVERS AND/OR IMPACT INCIDENTS, SUCH AS WOULD BE CAUSED BY CURBS OR ROAD SURFACE IRREGULARITY, REDUCE THE LIFE EXPECTANCY OF THE PART. THE STEERING LEVER MAY CRACK AND EVENTUALLY THE STRESSES COULD CAUSE THE STEERING LEVER TO BREAK.
3,673 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: A BROKEN STEERING LEVER WILL CAUSE LOSS OF STEERINGCONTROL WITHOUT PRIOR WARNING WHICH MAY RESULT IN A VEHICLE CRASH.
Remedy: REPLACE THE DEFECTIVE STEERING ARMS.
CAPSCREW THAT ATTACHES STEERING GEAR TO THE STEERING BRACKET MAY LOOSEN AND CAUSE THE GEAR TO SEPARATE FROM ITS SUPPORTING BRACKET.
1,770 vehicles affected
Manufacturer: RVI INC.
Consequence: THIS COULD AFFECT STEERING CONTROL AND RESULT IN ANACCIDENT.
Remedy: REPLACE THE STEERING BRACKET AND CAPSCREWS.
CAPSCREW THAT ATTACHES STEERING GEAR TO THE STEERING BRACKET MAY LOOSEN AND CAUSE THE GEAR TO SEPARATE FROM ITS SUPPORTING BRACKET.
2,135 vehicles affected
Manufacturer: RVI INC.
Consequence: THIS COULD AFFECT STEERING CONTROL AND RESULT IN ANACCIDENT.
Remedy: PROPERLY TORQUE CAPSCREWS.
WELDING DEFICIENCIES CAN CAUSE TWO-PIECE STEERING GEAR MOUNTING BRACKET TO PROGRESSIVELY SEPARATE.
300 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: THIS COULD RESULT IN LOSS OF STEERING CONTROL, WITHOUTPRIOR WARNING, AND A VEHICLE CRASH.
Remedy: REPLACE STEERING GEAR MOUNTING BRACKETS WITH PROPERLY WELDED BRACKETS.
THE CONNECTOR HALF OF THE SAFETY BELT IS NOT LONG ENOUGH TO ACCOMMODATE A 95TH PERCENTILE ADULT MALE.
5,200 vehicles affected
Manufacturer: RV IND., INC.
Consequence: NONUSE OF THE SAFETY BELT WOULD INCREASE THE RISK ANDSEVERITY OF INJURY IN A SUDDEN STOP OR ACCIDENT; ALSO, TRUCKS WOULD NOT COMPLYWITH FMVSS 209.
Remedy: REPLACE SHORT SAFETY BELT CONNECTOR WITH CONNECTORS LONG ENOUGH TO COMPLY WITH STANDARD.
A TOLERANCE MISMATCH IN THE CRANK ASSEMBLY OF THE BOSCH WINDSHIELD WIPER MOTOR COULD CAUSE INSTANTANEOUS SEPARATION OF THE CRANK FROM THE LINKAGE ASSEMBLY IN THE LEFT HAND CONTROL ARM ASSEMBLY; THIS WOULD MAKE THE SYSTEM INOPERABLE.
2,350 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: WIPER FAILURE DURING VEHICLE OPERATION COULD REDUCE DRIVER'S ABILITY TO SEE THE ROAD, AND CREATES A POTENTIAL FOR AN ACCIDENT.
Remedy: REPLACE LEFT HAND CONTROL ARM LINKAGE ASSEMBLY.
INTERFERENCE BETWEEN STEERING GEAR SECTOR SHAFT AND THE FRAME RAIL THROUGH HOLE CAN CAUSE SECTOR SHAFT WEAR AND CAN WEAKEN SHAFT CAUSE IT TO BREAK.
267 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: SHAFT FAILURE DURING VEHICLE OPERATION WOULD CAUSE LOSS OF STEERING CONTROL AND A CRASH WITHOUT PRIOR WARNING.
Remedy: ENLARGE FRAME RAIL THROUGH HOLE TO PREVENT INTERFERENCE: REPLACE STEERING GEAR SECTOR SHAFT IF SCORED.
THE UPPER AND LOWER PINCH BOLT ON THE STEERING PITMAN ARM AND THE LOWER PINCH BOLT CONNECTION ON SHEPHARD POWER GEARS WERE NOT TORQUED CORRECTLY.
6,696 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: PINCH BOLT COULD LOOSEN AND BREAK; THIS COULD CAUSE LOSS OF TRUCK STEERING CONTROL AND RESULT IN A CRASH.
Remedy: INSTALL ENGLISH HEX HEAD BOLTS AND FLAT WASHERS; TORQUE PINCH BOLTS TO SPECIFICATIONS.
CRACK MAY DEVELOP ON STEERING ARM THAT COULD PROGRESS AND REDUCE THE FATIGUE LIFE OF THE STEERING ARM.
1,862 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: STEERING ARM COULD FAIL WITHOUT WARNING RESULTING IN LOSS OF STEERING CONTROL AND POSSIBLY A CRASH.
Remedy: INSTALL A REDESIGNED STEERING ARM.
THE 7/8 INCH SPRING EYE BOLTS WITHIN THE SPRING EYE BUSHING HANGER BRACKET OF THE REAR SUSPENSION MAY FAIL.
14,800 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: THE SPRING COULD FALL ONTO THE ROAD SURFACE, WITHOUT WARNING TO THE DRIVER, AND A VEHICLE CRASH COULD OCCUR DUE TO THE SUDDEN DRAG OF THE SPRING.
Remedy: REPLACE ALL 7/8 INCH DIAMETER SPRING EYE BOLTS WITH 1 INCH DIAMETER BOLTS.
INTERNAL COMPONENTS OF THE E-12 DUAL CIRCUIT AIR BRAKE VALVES MAY BE MISASSEMBLED SO THAT ONE OF THE TAPERED SNAP RINGS IS UPSIDE DOWN.
3,652 vehicles affected
Manufacturer: MACK TRUCKS, INCORPORATED
Consequence: THE SNAP RING CAN COME OUT CAUSING THE VALVE TOMALFUNCTION AND APPLY THE TRUCK'S BRAKE SYSTEM WITHOUT WARNING; THIS COULDRESULT IN LOSS OF CONTROL AND A CRASH.
Remedy: REPLACE MISASSEMBLED VALVES.