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2005 Chevrolet Trailblazer Question: engine vibration



good vibrations, 4.2L 6 Cylinder, San Antonio, TX, September 03, 2012, 11:05

vibration at low rpm when at a stop. vibration increases when ac is on.

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  • Answer #1

    September 03, 2012, 11:14

    check motor mounts. how does it run?? are you up to date on all your services??


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  • Medium-star Best Answer
    Autohaus Lake Norman from Autohaus Lake Norman, September 03, 2012, 14:06

    Motor mounts are common, but could be something as simple as cleaning the throttle body out. When its dirty, the vehicle idles a bit lower than normal, even worse when the A/C is on. This can exaggerate normal vibrations.

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