1993 Mack DM

Routine

No owner complaints are on file for this vehicle. It has been recalled 3 times.

3 safety recalls

Part 573 reports

Wheels95E017001

Filed Jun 29, 199562 vehiclesMack Trucks, Incorporated

Defect. THESE WHEELS ARE COMPOSED OF 2 PIECES - A DISC AND A RIM WHICH ARE NORMALLY WELDED TOGETHER. THESE WHEELS LACK THE SPECIFIED FILLET WELDS.

Risk. 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.

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.

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: 2006

Year	Complaints	Recalls	Assessment
2006	1	1	Routine
2005	0	1	Routine
2004	0	4	Routine
2003	0	2	Routine
2002	0	1	Routine
2001	0	2	Routine
2000	0	3	Routine
1999	0	2	Routine
1998	0	2	Routine
1995	0	1	Routine
1994	0	1	Routine
1993 — this page	0	3	Routine
1992	0	3	Routine
1991	0	1	Routine
1990	0	1	Routine

Compare every DM year →

Other Mack models

All Mack models →

Mack 16 Anthem (an) 11 Granite (gr) 9 CXU612 7 GU 6 CH 6 Cxu 5 CH600 5 CV 4 CL 4

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: Jun 29, 1995. Source: NHTSA Office of Defects Investigation.