I have a 2008 Chevrolet trailblazer v-6. It has never used oil. All the sudden all of the dashboard lights came on and the engine powered down. Loud knocking noise. Checked oil and nothing was there. Added 3 quarts. Cranked it up and ran perfect. It’s been doing this several times over 8 months. The throttle body was checked and is fine. It’s doesnt have any visible leaks and not noticeably burning any oil. I was told that GMC and went cheap on some T rings with this model and that could be one of the issues. I’m curious to find out if anyone knows what I need today because it only has 144,000 miles on it

Asked by fosterholli Apr 24, 2018 at 06:11 PM about the 2008 Chevrolet Trailblazer 1LT RWD

Question type: Maintenance & Repair

6 Answers

11,575

Not a V-6, it's an I6. Only adding 3quarts, you say there was nothing there? This hold 7 quarts, so had at least 4 quarts in the engine. Was the throttle body cleaned or just checked?

1 people found this helpful.
11,575

Boy, there has to be codes stored in your PCM. I'd bring it to a shop that has a high end scanner like a Tech II to narrow down the problem. Intermitent problems like this can be difficult to diagnose.

1 people found this helpful.

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