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EnginePart report

2004 Pontiac Sunfire Engine Problems

Complaints
3about this part
Share
9%of 32 total for the year
Median mileage
74,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the engine of the 2004 Pontiac Sunfire, 9% of the 32 complaints for this model year. Where a mileage was given, the median is 74,000 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.

“Bought car used in 2013. Everything seemed to be okay until 9/12/14 when the theft system service light came on and I noticed the speedometer, rpms, and gas indicators were not reading - car began stalling like it was going to shut down. I was traveling about 50 to 55 MPH on a busy street. After car is shut off for a time it starts up okay and runs until the same thing reoccurs after going about 20 miles or so - if car shuts down while moving it could cause a serious injury or death. I have read numerous complaints about this same thing on various websites. …”

NHTSA complaint #10637233, filed 2014-09, 112,000 miles

“Vehicle was driven and parked for the evening. In the morning went to start the vehicle and vehicle would not start. Multiple attempts were tried to start. New starter installed and still no success to start. Vehicle was towed to repair shop. After evaluation it was found the timing chains had broken and infringed on the cylinder heads. Vehicle requires replacement engine as per mechanic. Investigated other claims of the same incident happening and have found that the 2.2l ecotec engine has had several complaints over the last 5-7 years.”

NHTSA complaint #10584763, filed 2014-04, 55,000 miles

“The contact owns a 2004 Pontiac Sunfire. The contact stated that while driving 65 MPH, the vehicle stalled without warning. The vehicle was taken to an independent mechanic where the technician diagnosed that the timing chain became fractured and as result, the engine would need to be replaced. The vehicle was repaired however, the failure recurred. The manufacturer was not made aware of the failure. The VIN was not available. The failure mileage was 74,000 and the current mileage was unknown.”

NHTSA complaint #10548218, filed 2013-10, 74,000 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
200534%
200439%
200323%
200211%
200123%
199911%
199711%

Other parts of the 2004 Pontiac Sunfire

Electrical system
16 complaints
Engine cooling
4 complaints
Brakes
3 complaints
Exterior lighting
3 complaints
Body and structure
3 complaints
Other or unknown
2 complaints
Air bags
1 complaints
Electronic stability control
1 complaints
Equipment
1 complaints
Steering
1 complaints
Vehicle speed control
1 complaints
Wheels
1 complaints

← All problems reported for the 2004 Pontiac Sunfire

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