- The problem
- The hand throttle cable passes through the accelerator rod assembly at an angle that wears a groove in the rod, which is located under the accelerator pedal. The cable can become wedged in the groove worn into the rod and cause the accelerator to stick in an open position.
- The risk
- This can result in loss of control of the bus, and could result in an accident.
- The fix
- Dealers will install a positioning bracket for routing the hand throttle cable through the accelerator rod assembly.
Vehicle safety record
1991 Mack RW Problems, complaints & recalls
No owner complaints about the 1991 Mack RW have been filed with NHTSA. It is covered by 2 recalls, the latest in July 1994 for the vehicle speed control.
NHTSA data checked
DMore problems than a typical RW year, for its age
- Complaints
- 0
- Recalls
- 2
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
1991 Mack RW recalls 2
Recall repairs are free. Your dealer fixes them whether or not you bought the car there - check your VIN at nhtsa.gov/recalls to see if yours is done. What to do
- 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.
What owners say
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No complaints about the 1991 Mack RW yet
No owner has filed a complaint about this vehicle with NHTSA. If yours has a problem, share it here and report it to NHTSA.
Mack RW: every year compared
All RW years1991 Mack RW vs rivals
| Vehicle | Complaints | Recalls | Grade | |
|---|---|---|---|---|
| 1991 Mack RW | 0 | 2 | D | |
| 1991 Mack Mack | 1 | 0 | A | Compare |
More sales usually means more complaints, so compare similar vehicles of the same year. The grade compares each vehicle with its own model's other years.
Questions about the 1991 Mack RW
Does the 1991 Mack RW have any recalls?
Yes - NHTSA lists 2 recalls for the 1991 Mack RW: vehicle speed control (July 1994); vehicle speed control (February 1994). Recall repairs are free at any authorized dealer. Enter your VIN at nhtsa.gov/recalls to see whether yours has been fixed.
How many complaints has the 1991 Mack RW had?
None have been filed with NHTSA so far.
Is the 1991 Mack RW a reliable vehicle?
Its Safety Index is 26 out of 100 (grade D: more problems than a typical Mack RW year, for its age). The index weighs complaints, crashes, fires, injuries, deaths and recalls against how long the vehicle has been on the road, compared with the same model's other years. It is not a measure of every repair - read the complaints and owner experiences, and have any used vehicle inspected before you buy.
What should I do if my 1991 Mack RW has a problem?
If it is a safety problem, stop driving it if it is unsafe and contact your dealer. Report it to NHTSA at nhtsa.gov/report-a-safety-problem - enough reports start investigations and recalls - and share your experience here so other owners know what to look for.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data