1993 Mack CH

Routine

No owner complaints are on file for this vehicle. It has been recalled 5 times.

5 safety recalls

Part 573 reports
Trailer Hitches › Fifth Wheel Assembly00V019003
Filed May 11, 200090 vehiclesMack Trucks, Incorporated

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

Risk. 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.

Service Brakes, Air › Supply › Hoses, Lines/Piping, and Fittings95E003010
Filed Jun 27, 19951,224 vehiclesMack Trucks, Incorporated

Defect. 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.

Risk. 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.

Power Train › Driveline › Center Support Bearing94V216000
Filed Nov 1, 199417,720 vehiclesMack Trucks, Incorporated

Defect. THE DRIVESHAFT CENTER BEARING SUPPORT BRACKET CAN CRACK AND BREAK.

Risk. 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.

Engine and Engine Cooling › Cooling System › Fan93V137000
Filed Aug 20, 199311,000 vehiclesMack Trucks, Incorporated

Defect. THE ENGINE COOLING FAN BLADES MAY BREAK DUE TO INADEQUATE BLADE STRENGTH AROUND THE RIVETS THAT ATTACH THE BLADES TO THE FAN SPIDER.

Risk. 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.

Trailer Hitches93V024000
Filed Feb 16, 19934,924 vehiclesMack Trucks, Incorporated

Defect. THE CARRIER YOKE BOLTS WERE MANUFACTURED WITH WORN ROLLING THREAD DIES, CAUSING STRESS CONCENTRATIONS WHICH CAUSED CRACKS DURING THE QUENCHING PROCESS.

Risk. THIS CONDITION CAN CAUSE BOLT FAILURE AND ALLOW THEDRIVELINE TO SEPARATE FROM THE CARRIER ASSEMBLY.

Remedy. REPLACE THE CARRIER YOKE BOLTS.

Across model years

Worst on record: 2002
YearComplaintsRecallsFiresDeathsAssessment
20070300Routine
20060200Routine
20050300Routine
20040500Routine
20030700Routine
20022600Routine
20010500Routine
20000700Routine
19990700Routine
19980300Routine
19971200Routine
19961300Routine
19950200Routine
19941100Routine
1993 — this page0500Routine
19921600Routine
19910500Routine
19900500Routine

Compare every CH year →

Reading this record

No unusual pattern of severe incidents in the complaint record.

Complaint counts track how many cars were sold and how long they have been on the road as much as they track quality. A common model from 2013 has had a decade to accumulate reports; a rare one from last year has not. The signal worth weighing is in the severity columns, in whether the same component keeps appearing, and in whether the manufacturer eventually opened a recall for it.

Recall repairs are free for as long as the recall stands. Check whether a specific car still has open work at NHTSA's VIN lookup.

Most recent recall on file: May 11, 2000. Source: NHTSA Office of Defects Investigation.