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Engine coolingPart report

2002 Pontiac Trans AM Engine cooling Problems

Complaints
6about this part
Share
19%of 32 total for the year
Median mileage
8,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the engine cooling of the 2002 Pontiac Trans AM, 19% of the 32 complaints for this model year. Where a mileage was given, the median is 8,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Normal maintenance requirements maintained on this low mileage car. Engine coolant (listed as 5 year/150,000. Mile coolant) broke down and turned to brown foamy sludge at 39,000. Miles (less than 4 years). I will be having my local service center flush the cooling system and replace the long life coolant.”

NHTSA complaint #10158498, filed 2006-05, 39,101 miles

“I have a knock in my engine appearing to be coming from the number 1 piston and cylinder area. One dealer calls it piston slap, which I have read up on and it says that it goes away after it warms up, my knock can be heard at all times of engine operation. Gm says there are teflon coated pistons available only for the corvette ls1 engine and not my Trans Am ls1 engine. I have dealt with one dealer in oak harbor wa that is both a chevy and Pontiac service center. I refuse to use this dealer ever again because they try to pawn it off as piston slap and that it is normal to have. …”

NHTSA complaint #10021492, filed 2003-06, 8,000 miles

“Consumer states when accelerating engine looses power. Cause unknown. When consumer attempts to pass a vehicle, the RPM goes down. The engine would die down to 50 MPH forcing the consumer to pull behind the vehicle he tried to pass. Since dealer couldn't duplicate the problem, vehicle was unable to be repaired.”

NHTSA complaint #10031816, filed 2003-08, 3,500 miles

“Dt: the vehicle was parked when the consumer started it and could hear an explosion sound coming from under the hood. When lifting the hood could see oil coming from all over. When she took it to the dealership, they verified that the maintenance had been kept up. They told her that they would replace the motor with a used motor. The consumer was concerned that the same problem will happen again. The consumer contacted the manufacturer, they understood her concern and stated that they could not help her because her warranty was with someone else. …”

NHTSA complaint #10133755, filed 2005-08, 51,000 miles

“Car started having problems after being purchased two months brand new. Multiple electric problems, fuses constantly burning out and are replaced, all power options failed, crackling noise from under the dash, groaning/grinding noise from under engine compartment, wheel balance issues, left blinker constantly malfunctions, right headlamp always burning out, battery acid leaked all over after only have the car a few months, was getting 30+ miles to a gallon, now gets <8 miles to a gallon, interior door panel split, poor customer service, issued a complaint with gmc - they noted me as a…”

NHTSA complaint #10152327, filed 2006-03, 5,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
2002619%
2001220%
200019%
1999213%
1998327%
199718%
1994111%
1986110%

Other parts of the 2002 Pontiac Trans AM

Brakes
5 complaints
Exterior lighting
4 complaints
Body and structure
4 complaints
Seat belts
3 complaints
Electrical system
2 complaints
Fuel system
2 complaints
Other or unknown
2 complaints
Steering
2 complaints
Tires
2 complaints
Visibility (wipers, defrost, mirrors)
2 complaints
Air bags
1 complaints
Engine
1 complaints

← All problems reported for the 2002 Pontiac Trans AM

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology