Have a 2005 Chevy trailblazer that has a rough idle..I have changed the plugs and cleaned the throttle body don't know what else do to..any suggestions?

40

Asked by Kshep76 Apr 23, 2015 at 04:16 PM

Question type: Maintenance & Repair

5 Answers

40

I've noticed that it idles rough when in reverse or drive only and it's not constant it's kinda intermittent

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That's because the load increases on the engine and makes the problem more noticeable, I still think you have a small vacuum leak somewhere

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