The defect
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.
The risk
PINCH BOLT COULD LOOSEN AND BREAK; THIS COULD CAUSE LOSS OF TRUCK STEERING CONTROL AND RESULT IN A CRASH.
The remedy
INSTALL ENGLISH HEX HEAD BOLTS AND FLAT WASHERS; TORQUE PINCH BOLTS TO SPECIFICATIONS.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Mack CH | 1988, 1989, 1990 |
Components: STEERING:LINKAGES
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Mack CH | 1988 | 0 | 6 |
| Mack CH | 1989 | 0 | 7 |
| Mack CH | 1990 | 0 | 5 |
Other steering recalls in 1990
20 of the 208 recall campaigns reported to NHTSA in 1990 concerned the steering; MACK TRUCKS, INCORPORATED filed 245 campaigns in all.
| 90V201000 6 Dec 1990 | PACCAR, INCORPORATED |
| 90V150000 20 Aug 1990 | FLXIBLE CORPORATION |
| 90V136000 6 Aug 1990 | NISSAN NORTH AMERICA, INC. |
| 90V140000 1 Aug 1990 | RVI INC. |
| 90V139000 1 Aug 1990 | RVI INC. |
| 90V120000 15 Jun 1990 | MACK TRUCKS, INCORPORATED |
| 90V103000 1 Jun 1990 | GENERAL MOTORS CORP. |
| 90V099000 22 May 1990 | BLUE BIRD BODY COMPANY |
NHTSA recalls (public domain) · all recalls of 1990