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1991 Mack FDM recalls

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

3 recalls found in NHTSA data as of September 22, 2026

For the 1991 Mack FDM. These apply to the model and year, not to one particular vehicle: check your VIN to see whether yours is included and whether it has been repaired.

Has your Mack been repaired?

Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.

NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Mack dealer can also check your VIN. Recall repairs are free.

1991 Mack FDM recalls, newest first

February 15, 1994NHTSA 94V03200039,777 vehicles potentially affected

Vehicle speed control

Summary
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.

This recall on nhtsa.gov

November 1, 1993NHTSA 93V176000130 vehicles potentially affected

Power train › Driveline

Summary
The driveshaft to the front driving axle is secured to a bracket using two pillow blocks. These blocks are of insufficient strength to support the driveshaft and could fail.
Consequence
Pillow block failure allows the driveline (jackshaft)to drop down onto the roadway and create a safety hazard to other vehicles.
Remedy
Mack will install thicker pillow blocks and support u-bolts.

This recall on nhtsa.gov

August 20, 1993NHTSA 93V13700011,000 vehicles potentially affected

Engine and engine cooling › Cooling system › Fan

Summary
The engine cooling fan blades may break due to inadequate blade strength around the rivets that attach the blades to the fan spider.
Consequence
If complete fracture of the fan blade occurs, it couldbe propelled outside the fan shroud, injuring person(s) in the vicinity ofthe truck.
Remedy
An improved fan will be installed on these vehicles.

This recall on nhtsa.gov

Owner complaints

No owner complaints about the 1991 Mack FDM were found in NHTSA’s complaint data.

Other Mack FDM years

Other 1991 Mack models

Most recalled 1991 vehicles

  1. 1991 Honda Accord (13 recalls)
  2. 1991 Blue Bird TC2000 (12 recalls)
  3. 1991 Acura Integra (11 recalls)
  4. 1991 Thomas School Bus (11 recalls)
  5. 1991 Chevrolet Caprice (10 recalls)
All of 1991’s most recalled vehicles

Questions

Does the 1991 Mack FDM have any recalls?
3 recalls found in NHTSA data as of September 22, 2026, covering: vehicle speed control, power train, engine and engine cooling. Recalls apply to the model and year; whether a particular vehicle is included, and whether it has been repaired, depends on its VIN.
How do I check if my 1991 Mack FDM recall has been fixed?
Enter your 17-character VIN at nhtsa.gov/recalls, or ask a Mack dealer. Recall repairs are free. NHTSA's VIN search doesn't list recalls that were already repaired.
How many complaints have owners filed about the 1991 Mack FDM?
0 complaints filed with NHTSA. Complaints are unverified reports from the public that NHTSA uses to decide what to investigate.