Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.

NHTSA — Engine Problems


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
80,333 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2004 Pontiac Sunfire engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2004 Pontiac Sunfire:

Unsubscribe any time. We don't sell/share your email.

2004 Pontiac Sunfire Owner Comments

problem #3

Sep 122014

Sunfire 4-cyl

  • 112,000 miles


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. Apparently, the approximate cost to fix is $400 - I am on a limited income and cannot afford. Please help.

- Fenton, MO, USA

problem #2

Apr 142014

Sunfire 4-cyl

  • 55,000 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.

- Arcadia, OH, USA

problem #1

Oct 092007


  • 74,000 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.

- Massillon, OH, USA

Not what you are looking for?