Recall 94V-032: 1987–1992 Mack CF, 1987–1992 Mack CH and 15 more
MACK TRUCKS, INCORPORATED recall for vehicle speed control, reported to NHTSA on Feb 15, 1994, covering about 39,777 vehicles.
The problem
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.
The risk
In the event the primary throttle return fails, failure of the secondary throttle return system would not provide protection against loss of throttle control.
The fix
A new production secondary throttle return system configuration will be installed.
Notes
System: fuel; fuel pump.vehicle description: class 8 trucks equipped with e6 and e7 engines with robert bosch p7100 mechanically-governed fuel injection pumps.note: if your vehicle is presented to an authorized dealer on an agreed upon service date and the remedy is not provided within a reasonable time and free of charge or the remedy does not correct the defect or noncompliance, please contact the national highway traffic safety administration's auto safety hotline at 1-800-424-9393.
Recall details
| Manufacturer | MACK TRUCKS, INCORPORATED |
|---|---|
| Component | Vehicle Speed Control |
| Recall started by | NHTSA (Office of Defects Investigation) |
| NHTSA campaign number | 94V032000 |
Vehicles in this recall
| Vehicle | Model years | |
|---|---|---|
| Mack CF | 1987, 1988, 1989, 1990, 1991, 1992 | All years |
| Mack CH | 1987, 1988, 1989, 1990, 1991, 1992 | All years |
| Mack CHR | 1987, 1988, 1989, 1990, 1991, 1992 | All years |
| Mack CL | 1987, 1988, 1989, 1990, 1991, 1992 | All years |
| Mack DM | 1987, 1988, 1989, 1990, 1991, 1992 | All years |
| Mack DMM | 1987, 1988, 1989, 1990, 1991, 1992 | All years |
| Mack FDM | 1987, 1988, 1989, 1990, 1991, 1992 | All years |
| Mack MC | 1987, 1988, 1989, 1990, 1991, 1992 | All years |
| Mack MH | 1987, 1988, 1989, 1990, 1991, 1992 | All years |
| Mack MHR | 1987, 1988, 1989, 1990, 1991, 1992 | All years |
| Mack MR | 1987, 1988, 1989, 1990, 1991, 1992 | All years |
| Mack R | 1987, 1988, 1989, 1990, 1991, 1992 | All years |
| Mack RB | 1987, 1988, 1989, 1990, 1991, 1992 | All years |
| Mack RD | 1987, 1988, 1989, 1990, 1991, 1992 | All years |
| Mack RM | 1987, 1988, 1989, 1990, 1991, 1992 | All years |
| Mack RW | 1987, 1988, 1989, 1990, 1991, 1992 | All years |
| Mack U | 1987, 1988, 1989, 1990, 1991, 1992 | All years |
Not every vehicle of these model years is included. Enter your VIN at nhtsa.gov/recalls ↗ or ask a dealer.
Frequently asked questions
What is recall 94V-032?
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.
How is recall 94V-032 fixed?
A new production secondary throttle return system configuration will be installed.
Is the recall repair free?
Yes. Safety recall repairs are free at authorized dealers. Check whether your vehicle is included with its VIN at nhtsa.gov/recalls.