1991 Mack Fdm Recalls, Complaints & Specs
3 safety recalls list the 1991 Mack Fdm. Check your own VIN below.
3 safety recalls for the 1991 Mack Fdm
Most recent first. Recall repairs are free at any authorised dealer. Click a recall for the full defect, consequence and remedy text.
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Vehicle speed control
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.
Remedy: A new production secondary throttle return system configuration will be installed.
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Driveline (power train)
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.
Remedy: Mack will install thicker pillow blocks and support u-bolts.
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Fan (engine and engine cooling)
The engine cooling fan blades may break due to inadequate blade strength around the rivets that attach the blades to the fan spider.
Remedy: An improved fan will be installed on these vehicles.
No owner complaints on file
NHTSA has no owner complaints on file for the 1991 Mack Fdm. For context, the average model year in NHTSA's database has dozens; a zero can mean a reliable vehicle, a rare one, or both.
Compare Mack Fdm model years
Recall and complaint counts for every Mack Fdm model year in NHTSA's database.
| Model year | Recalls | Complaints |
|---|---|---|
| 1987 Mack Fdm | 1 | 0 |
| 1988 Mack Fdm | 1 | 0 |
| 1989 Mack Fdm | 2 | 0 |
| 1990 Mack Fdm | 2 | 0 |
| 1991 Mack Fdm | 3 | 0 |
| 1992 Mack Fdm | 2 | 0 |
| 1993 Mack Fdm | 1 | 0 |
| 1996 Mack Fdm | 1 | 0 |
| 1997 Mack Fdm | 1 | 0 |
Checking a specific 1991 Mack Fdm
How do I know if my 1991 Mack Fdm has an open recall?
Enter your 17-character VIN above. The VIN is on the driver's side dashboard (visible through the windshield), the driver's door jamb sticker, and your registration or insurance card. The check runs against NHTSA's live database and tells you which campaigns list your vehicle. 3 campaigns currently list the 1991 Mack Fdm; your car may already have been repaired under some of them.
Is the recall repair free?
Yes. Under federal law, manufacturers must fix safety recalls at no charge for vehicles up to 15 years old from the date of sale to the first owner. Contact any authorised Mack dealer with your VIN and the NHTSA campaign number (for example 93V137000).
What is the difference between a recall and a complaint?
A recall is a safety campaign filed by the manufacturer or ordered by NHTSA, with a defined defect and remedy. A complaint is a report an owner sent to NHTSA; it is not verified, but patterns of complaints are what trigger NHTSA investigations and, eventually, recalls.
Other Mack models
- Mack28 complaints
- Anthem (an)12 complaints
- Granite (gr)9 complaints
- CXU6127 complaints
- Ch6 complaints
- Gu6 complaints
- CH6005 complaints
- Cxu5 complaints
Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.