1999 Pontiac Grand AM Engine and Engine Cooling Problems
Owners have filed 133 complaints with NHTSA about engine and engine cooling problems on the 1999 Pontiac Grand AM, 16% of all complaints for this model year. Half of the reports with a mileage happened before 65,000 miles. The words owners use most often: “manifold gasket” (23% of reports).
- 133engine and engine cooling complaints
- 65,000median miles at failure
- 0mention a crash
- 1mention an injury
- 0related recalls
- $1,400typical repair cost reported by owners
- 56%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Manifold gasket: mentioned in 30 of 133 complaints (23%)
- Water pump: mentioned in 16 of 133 complaints (12%)
- Low coolant: mentioned in 8 of 133 complaints (6%)
How much does it cost to fix?
Owners who wrote down what they paid or were quoted put the typical engine and engine cooling repair on the 1999 Pontiac Grand AM at $1,400, and half of them between $1,150 and $1,750.
Based on 13 NHTSA complaints about this problem alone that state a repair bill or quote (2003–2007), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.
At what mileage do engine and engine cooling problems happen?
Based on 65 complaints that reported the odometer reading.
How serious are the reports?
Of 133 complaints, 4 a fire, 1 an injury.
Pontiac Grand AM engine and engine cooling complaints by model year
| Model year | Engine and Engine Cooling complaints | Share of that year | Median miles |
|---|---|---|---|
| 2005 Grand AM | 2 | 2% | 54,550 |
| 2004 Grand AM | 12 | 4% | 61,599 |
| 2003 Grand AM | 24 | 7% | 38,000 |
| 2002 Grand AM | 54 | 14% | 56,937 |
| 2001 Grand AM | 75 | 14% | 61,000 |
| 2000 Grand AM | 111 | 16% | 55,000 |
| 1999 Grand AM | 133 | 16% | 65,000 |
| 1998 Grand AM | 23 | 13% | 80,000 |
| 1997 Grand AM | 83 | 22% | 89,500 |
| 1996 Grand AM | 74 | 16% | 92,000 |
| 1995 Grand AM | 60 | 15% | 103,401 |
When owners reported it
Related recalls (0)
No safety recall lists engine and engine cooling for the 1999 Pontiac Grand AM. A pattern of complaints does not always lead to a recall.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
1999 pontiac grand prix. Consumer states vehicle fire from under hood *tgw the consumer was able to extinguish the flames. *jb
Tl*the contact owns a 1999 pontiac grand am. The contact stated that while driving approximately 35-45 mph, the vehicle would suddenly stall. After the failure, he noticed that the abs light illuminated on the instrumental panel. The vehicle was able to restart after the contact waited a while. The…
I have a 1999 pontiac grand am 3.4l. I've owned this car since 2001 and i have already replaced my intake manifold gasket (under warranty) in 2002. I now have to replace it again! Except this time there was a fault in the gasket in the engine as well, which resulted in seized bearings, snapped…

Frequently asked questions
Do all 1999 Pontiac Grand AMs have engine and engine cooling problems?
No. NHTSA has 133 owner complaints about engine and engine cooling for the 1999 Pontiac Grand AM (16% of the 849 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 1999 Pontiac Grand AM engine and engine cooling?
No recall currently lists engine and engine cooling for this vehicle.
At what mileage do engine and engine cooling problems start?
The median reported mileage is 65,000 miles: half of the reports with a mileage came before that.
How much does it cost to fix engine and engine cooling problems on the 1999 Pontiac Grand AM?
Owners report a typical cost of $1,400 (half paid between $1,150 and $1,750), from 13 complaints that state a repair bill or quote, in 2026 dollars.
What do owners say about engine and engine cooling problems on the 1999 Pontiac Grand AM?
The most frequent phrase is “manifold gasket”, in 30 of 133 complaints, followed by “water pump” (16).
Other 1999 Pontiac Grand AM problems
See all 1999 Pontiac Grand AM problems or engine and engine cooling problems across all Grand AM years.