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EnginePart report

2004 Pontiac Aztek Engine Problems

Complaints
5about this part
Share
7%of 67 total for the year
Median mileage
158,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the engine of the 2004 Pontiac Aztek, 7% of the 67 complaints for this model year. Where a mileage was given, the median is 158,000 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.

“Driving car on road and car quit running, electrical started flashing. Pulled over and ignition switch would only go to acc. Mode, it would not turn to off position. I had car towed to my house. The ignition will only go to acc. Mode will not turn to off position where key can be removed..unhooked battery terminal and car is still parked.”

NHTSA complaint #10678243, filed 2015-01, 124,000 miles

“I have not driven my vehicle for 2 months because my mechanic told me my valve cover gaskets were leaking on to my exhaust manifold and that it why it was smoking when we stopped. I talked to my local GM dealer and they said it is not part of the recall so they could not help, so I have three choices let it sit in my driveway, pay several hundred dollars to get it fixed or drive it till it starts on fire. It has the 3800 motor like all the other cars in the recall. I can get a letter from my mechanic if needed.”

NHTSA complaint #10788443, filed 2015-11, 204,000 miles

“I have been smelling gas from my car for years but just never had the money to get it looked at. I even called about recalls concerning the fuel system that I found out about through research in 2015 but was told they had been closed so I would be charged for the repairs even if it was previously covered under recall. I no longer fill my tank with gas because there is a leak. I just got my car back from the dealership, they state that I need a new fuel tank, and fuel lever sensor and sender. Also, have oil leaks in 2 places, they tell me I need upper & lower intake gaskets. …”

NHTSA complaint #11322711, filed 2020-04

“The contact owns a 2004 Pontiac Aztek. While driving at various speeds, the vehicle accelerated independently and the check engine, fuel tank, and fuel pressure warning indicators illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 158,000.”

NHTSA complaint #10676885, filed 2015-01, 158,000 miles

“The contact owns a 2004 Pontiac Aztek. While driving 15 MPH, the engine stalled. The contact was able to restart the vehicle, but the failure recurred on numerous occasions. The dealer was unable to diagnose the cause of the failure. The vehicle was not repaired and the manufacturer was notified. The failure mileage was unknown.”

NHTSA complaint #10638500, filed 2014-09

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2005412%
200457%
200365%
200232%

Other parts of the 2004 Pontiac Aztek

Fuel system
16 complaints
Electrical system
15 complaints
Brakes
12 complaints
Engine cooling
8 complaints
Suspension
8 complaints
Air bags
5 complaints
Transmission and drivetrain
4 complaints
Steering
3 complaints
Vehicle speed control
3 complaints
Visibility (wipers, defrost, mirrors)
3 complaints
Exterior lighting
2 complaints
Other or unknown
2 complaints

← All problems reported for the 2004 Pontiac Aztek

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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