Print this page Notes: It would be ill-advised to blaze any trails with the 2004 Trailblazer. Its faulty fuel gauge could leave you stranded.


definitely annoying
Crashes / Fires:
0 / 2
Injuries / Deaths:
0 / 0
Average Mileage:
21,850 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 Chevrolet Trailblazer engine problems

engine problem

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2004 Chevrolet Trailblazer Owner Comments

problem #6

Aug 012008


  • 32,000 miles


I purchased a used 2004 Chevy Trailblazer in February 08. It only had 23,000 miles on it. With in the first 2 weeks I had it my gauges started going crazy. They were jumping around all over the place. I took it back to the dealer to have it fixed and they tried to charge me. Fortunately I must have complained enough and to the right person because it was replaced at no charge to my self. I now am having major problems with it stalling and trying to stall. After searching the internet I see that I am not alone there are hundreds of complaints about this problem. Everyday upon start up it idles very rough and it tries to stall for a good 10 minutes. If I don't let it sit and idle before I drive it tends to stall. My check engine light will flicker at least once a day and every few days my reduced engine power light will flicker. I do not feel safe anymore. What if I am traveling and my car stalls and I lose control and from reading the other complaints I am at risk for my air bags not deploying. If it is a problem with the PCM, I don't have the money to fix it!!!!! why should I have too" I see that I am not alone with this problem. Why is their nothing being done about it? why should us as consumer already paying enough for these vehicles be responsible for their mistakes"

- Tyrone, PA, USA

problem #5

Dec 232006

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 42,000 miles
- sometime in late September 2006, while driving at 65 mph the transmission began to slip. The vehicle sounded as if it wanted to accelerate, but couldn't. the contact's vehicle continued to have the failure for about 10 seconds. The vehicle also had the same type of failure while at a stop light. While trying to accelerate the vehicle's speed decreased to 5 mph for about 20-30 seconds. On 10/11/06 contact took the vehicle to the dealership. Dealership replaced the exhaust check valve. On 10/17/06 vehicle continued to have the same failure and the engine light was turning on, . the contact took the vehicle to the dealership where they replaced the oxygen sensor. The contact continued to have the same incident with the transmission slipping and the check engine light coming on. Contact took the vehicle to the dealership on 10/3106, and they replaced the valve body. It continued to have the same incident with the transmission slipping, but this time the engine light was not showing. He took the vehicle to the dealership on 12/20/06, and they stated that there wasn't anything wrong with the vehicle. The contact currently has the vehicle parked at home and does not plan to drive it because he doesn't feel safe in vehicle. Updated 2/26/2007 -

- Seneca, PA, USA

problem #4

Sep 152006

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 37,000 miles
I parked and turned off my car and it burst into flames. I had absolutely no warning, no warning light came on and I had no problems with the car at all until the fire.

- West Orange, NJ, USA

problem #3

Jun 112005

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 20,000 miles


Our family was driving from columbus, Ohio to louisville, ky. We had just crossed the state line going up I-75 hill near florance. When my wife said she seen smoke out her side mirror. I looked in rear view mirror and seen a little myself. I was in fast lane running speed limit, all gauges showed all was ok. I put turn signal on to begin finding a place to stop. Other cars near us began blowing horns and pointing at front right side of car. Once we got pulled off side of road, we turned vehicle off. I pulled the hood release of our 2004 Chevy Trailblazer. The fire was already flaming out the front of the hood where you could not touch it to open the hood up. Flames were also very bad on the front wheel area. My family exited the vehicle and got safely away. It is now being investigated by GM. Was suppose to hear a update by August 31st on investigation. They moved date to September 2 with no response. I contacted them on September 6 and they said they are awaiting pictures of vehicle to be reviewed. They said they would update me on September 7. this vehicle was purchased new and had just turned 20K miles.

- Westerville, OH, USA

problem #2

Aug 052004

Trailblazer 6-cyl

  • Automatic transmission
  • miles
While driving 72 mph, the vehicle stalled without warning. The driver tried to restart the vehicle and was able to do. The vehicle was taken to the dealer five times for inspection. The mechanic was unable to duplicate the problem.

- North Hills, CA, USA

problem #1

Nov 142003


  • 100 miles
On 4 separate occasions vehicle stalled. When this occurred consumer tried to restart vehicle, but it wouldn't restart. Also, keys were stuck in the ignition. As a result, battery was drained. Dealership has replaced automatic transmission shift lock control, battery fuses, programmed the calibration for the engine control module, the starter, and its relay switch.

- Howard Beach, NY, USA

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