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.

Print this page Notes: The first year for Chevrolet's replacement for the S-10.


definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
44,200 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 Colorado engine problems

engine problem

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2004 Chevrolet Colorado Owner Comments

problem #5

Jan 022013

Colorado 4WD 5-cyl

  • 85,000 miles


Everyday now when I try to start the truck it turns over but will not start, wait 15 minutes then it will start. Today when I tried it the first time it turned over but would not start so when I turned it off at the key it stopped then tried to start again on its own for about 8 to 10 secs. The starter turned the engine over without touching the ignition switch it then stopped for about 3 or 4 secs then tried to start on its own again without touching the key, it did this start sequence 3 times in a row. The GM passlock system is terribly defective as reported by all the reports online and I believe my problems are a result of this system.

- Puyallup, WA, USA

problem #4

May 062013


  • miles
The ignition will not start at first. It takes multiple times in order to get the engine to turn over. Once the ignition does cause the engine to turn over, the vehicle will suddenly lose power while driving as the vehicle shuts itself off (as if the ignition has been turned off although it has not been). This has happened on multiple occasions in the course of normal driving activities, several times while crossing busy intersections which luckily has not resulted in any crashes to date, but may very well result in a potentially fatal one should it continue to occur. Engine has been tested and all systems check out, except for the ignition switch which -will- have to be replaced.

- Houston, MS, USA

problem #3

Apr 122014

Colorado 4-cyl

  • miles
2004 Chevrolet Colorado. Consumer writes in regards to engine and ignition switch problems. The consumer stated on April 12, 2014, the vehicle shut off while driving 30 mph. The brake pedal was hard to push and the dashboard read reduced power. After waiting three minutes, the consumer was able to re-start the vehicle. The vehicle stalled again, after driving two miles. According to the service invoice, the PCM computer was bad.

- Naperville, IL, USA

problem #2

Sep 102009


  • 102,000 miles
The contact owns a 2004 Chevrolet Colorado. The contact stated that the catalytic converter weld became fractured and separated. The failure recurred on multiple occasions. The vehicle was taken to the dealer where the technician diagnosed the exhaust manifold and catalytic converter needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was 102,000 and the current mileage was 182,000. MA 10/25/15

- Thompsons Station, TN, USA

problem #1

Jun 172009


  • 34,000 miles
With the revelation of the GM ignition recall problem, there are much more ignition problems that were not included in the recall. The problem is in the ignition cylinder and alignment with the passlock or passkey sensor. My problem started shortly after the vehicle went out of warranty and I was told by the dealer that it was a $1000 repair. I can not afford $1000. So I have lived with it. Because of the misalignment it causes the ignition to think that the vehicle is stolen and disables the fuel injectors, it has left me stranded quite a few times along the road waiting for the computer to manually reset after 10 minutes, it has also cost me several towing bills until I did an internet search and found out how widespread this issue is. If the misalignment is causing this to happen what will it affect as the problem worsens. This issue is not covered by the current recall but deserves investigating. [xxx] information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Oil City, PA, USA

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