NHTSA Campaign 94V032000
VEHICLE SPEED CONTROL
Issued by MACK TRUCKS, INCORPORATED · Reported Feb 15, 1994 · 39,777 vehicles affected
What's wrong
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.
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.
Vehicles affected by this recall
| Make | Model | Year | Units |
|---|---|---|---|
| MACK | CF | 1987 | 39,777 |
| MACK | CF | 1988 | 39,777 |
| MACK | CF | 1989 | 39,777 |
| MACK | CF | 1990 | 39,777 |
| MACK | CF | 1991 | 39,777 |
| MACK | CF | 1992 | 39,777 |
| MACK | CH | 1987 | 39,777 |
| MACK | CH | 1988 | 39,777 |
| MACK | CH | 1989 | 39,777 |
| MACK | CH | 1990 | 39,777 |
| MACK | CH | 1991 | 39,777 |
| MACK | CH | 1992 | 39,777 |
| MACK | CHR | 1987 | 39,777 |
| MACK | CHR | 1988 | 39,777 |
| MACK | CHR | 1989 | 39,777 |
| MACK | CHR | 1990 | 39,777 |
| MACK | CHR | 1991 | 39,777 |
| MACK | CHR | 1992 | 39,777 |
| MACK | CL | 1987 | 39,777 |
| MACK | CL | 1988 | 39,777 |
| MACK | CL | 1989 | 39,777 |
| MACK | CL | 1990 | 39,777 |
| MACK | CL | 1991 | 39,777 |
| MACK | CL | 1992 | 39,777 |
| MACK | DM | 1987 | 39,777 |
| MACK | DM | 1988 | 39,777 |
| MACK | DM | 1989 | 39,777 |
| MACK | DM | 1990 | 39,777 |
| MACK | DM | 1991 | 39,777 |
| MACK | DM | 1992 | 39,777 |
| MACK | DMM | 1987 | 39,777 |
| MACK | DMM | 1988 | 39,777 |
| MACK | DMM | 1989 | 39,777 |
| MACK | DMM | 1990 | 39,777 |
| MACK | DMM | 1991 | 39,777 |
| MACK | DMM | 1992 | 39,777 |
| MACK | FDM | 1987 | 39,777 |
| MACK | FDM | 1988 | 39,777 |
| MACK | FDM | 1989 | 39,777 |
| MACK | FDM | 1990 | 39,777 |
| MACK | FDM | 1991 | 39,777 |
| MACK | FDM | 1992 | 39,777 |
| MACK | MC | 1987 | 39,777 |
| MACK | MC | 1988 | 39,777 |
| MACK | MC | 1989 | 39,777 |
| MACK | MC | 1990 | 39,777 |
| MACK | MC | 1991 | 39,777 |
| MACK | MC | 1992 | 39,777 |
| MACK | MH | 1987 | 39,777 |
| MACK | MH | 1988 | 39,777 |
| MACK | MH | 1989 | 39,777 |
| MACK | MH | 1990 | 39,777 |
| MACK | MH | 1991 | 39,777 |
| MACK | MH | 1992 | 39,777 |
| MACK | MHR | 1987 | 39,777 |
| MACK | MHR | 1988 | 39,777 |
| MACK | MHR | 1989 | 39,777 |
| MACK | MHR | 1990 | 39,777 |
| MACK | MHR | 1991 | 39,777 |
| MACK | MHR | 1992 | 39,777 |
| MACK | MR | 1987 | 39,777 |
| MACK | MR | 1988 | 39,777 |
| MACK | MR | 1989 | 39,777 |
| MACK | MR | 1990 | 39,777 |
| MACK | MR | 1991 | 39,777 |
| MACK | MR | 1992 | 39,777 |
| MACK | R | 1987 | 39,777 |
| MACK | R | 1988 | 39,777 |
| MACK | R | 1989 | 39,777 |
| MACK | R | 1990 | 39,777 |
| MACK | R | 1991 | 39,777 |
| MACK | R | 1992 | 39,777 |
| MACK | RB | 1987 | 39,777 |
| MACK | RB | 1988 | 39,777 |
| MACK | RB | 1989 | 39,777 |
| MACK | RB | 1990 | 39,777 |
| MACK | RB | 1991 | 39,777 |
| MACK | RB | 1992 | 39,777 |
| MACK | RD | 1987 | 39,777 |
| MACK | RD | 1988 | 39,777 |
| MACK | RD | 1989 | 39,777 |
| MACK | RD | 1990 | 39,777 |
| MACK | RD | 1991 | 39,777 |
| MACK | RD | 1992 | 39,777 |
| MACK | RM | 1987 | 39,777 |
| MACK | RM | 1988 | 39,777 |
| MACK | RM | 1989 | 39,777 |
| MACK | RM | 1990 | 39,777 |
| MACK | RM | 1991 | 39,777 |
| MACK | RM | 1992 | 39,777 |
| MACK | RW | 1987 | 39,777 |
| MACK | RW | 1988 | 39,777 |
| MACK | RW | 1989 | 39,777 |
| MACK | RW | 1990 | 39,777 |
| MACK | RW | 1991 | 39,777 |
| MACK | RW | 1992 | 39,777 |
| MACK | U | 1987 | 39,777 |
| MACK | U | 1988 | 39,777 |
| MACK | U | 1989 | 39,777 |
| MACK | U | 1990 | 39,777 |
| MACK | U | 1991 | 39,777 |
| MACK | U | 1992 | 39,777 |
Source: NHTSA Campaign 94V032000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.