There have been 6 safety recalls for the Mack Dmm Series. The most recent recalls are shown below. Table 1 and Table 2 show the historical recalls and the recall statistics by the model year of the Mack Dmm Series.
This could result in loosening and failure of the boltswith possible loss of control and accident potential.
| Recalled Vehicles: 1988 Mack Dm Series, 1988 Mack Dmm Series, 1988 Mack MH, 1988 Mack Rd Series, 1988 Mack Rw Series |
| Component: SUSPENSION:REAR:SPRINGS |
| Recall Summary: Dowels may have been omitted during spring cap installation; this would put shear load on the four (4) spring cap bolts. ... Details of this recall 🔎 |
Under certain conditions, hose could fail resulting inloss of power steering assist and possibly an accident.
| Recalled Vehicles: 1987 Mack Dm Series, 1988 Mack Dm Series, 1987 Mack Dmm Series, 1988 Mack Dmm Series, 1987 Mack R Series, 1988 Mack R Series, 1987 Mack Rd Series, 1988 Mack Rd Series, 1987 Mack Rm Series, 1988 Mack Rm Series, 1987 Mack Rw Series, 1988 Mack Rw Series, 1987 Mack U Series, 1988 Mack U Series |
| Component: STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS |
| Recall Summary: An incorrect high pressure power steering hose may have been installed. ... Details of this recall 🔎 |
Failure of one or both brackets could cause dislocationof engine and transmission assembly, which could result in truck disablement,possible loss of accelerator control and an accident.
| Recalled Vehicles: 1988 Mack Dmm Series, 1988 Mack R Series, 1988 Mack Rd Series, 1988 Mack Rm Series |
| Component: ENGINE AND ENGINE COOLING:ENGINE |
| Recall Summary: Certain engine support castings were produced with faulty metallurgy and could fail. ... Details of this recall 🔎 |
This would allow the pitman arm to come off the steeringgear sector shaft and result in immediate loss of steering control and a vehiclecrash could occur.
| Recalled Vehicles: 1988 Mack Dm Series, 1988 Mack Dmm Series, 1988 Mack R Series, 1988 Mack Rd Series, 1988 Mack Rm Series, 1988 Mack U Series |
| Component: STEERING:LINKAGES |
| Recall Summary: Some of the nuts/bolts used to fasten the steering pitman arm may loosen. ... Details of this recall 🔎 |
If clamp plate breaks, yoke would fly off at detachedpoint and could injury anyone struck by flying fragments. Also, the detachedinner shaft could interfere with the brake system air supply hoses and tractortires, which could result in loss of truck control and an accident.
| Recalled Vehicles: 1988 Mack Dm Series, 1988 Mack Dmm Series, 1988 Mack R Series, 1988 Mack Rd Series, 1988 Mack Rm Series, 1988 Mack U Series |
| Component: POWER TRAIN:DRIVELINE:CENTER SUPPORT BEARING |
| Recall Summary: Clamp plates used between the drive shaft and carrier yokes may crack and could break due to improper heat treatment. ... Details of this recall 🔎 |
| Date | Component | Vehicle Affected |
|---|---|---|
| Mar. 3, 1989 | Steering:hydraulic Power Assist:hose, Piping, And Connections | 3,127 |
| Mar. 3, 1989 | Suspension:rear:springs | 152 |
| Oct. 18, 1988 | Engine And Engine Cooling:engine | 408 |
| Jul. 27, 1988 | Steering:linkages | 6,400 |
| May. 23, 1988 | Power Train:driveline:center Support Bearing | 203 |
| Jul. 8, 1981 | Seat Belt | 22 |
| Model | # Recalls |
|---|---|
| 1988 Mack Dmm Series | 5 |
| 1987 Mack Dmm Series | 1 |
| 1981 Mack Dmm Series | 1 |
| 1980 Mack Dmm Series | 1 |