Question about 1998 Chevrolet Blazer

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When i start it up it will shake and once it is started it runs okay. what could be the cause of the shaking.

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  • dannyharp Oct 01, 2009

    I have another question if u dont mind. When I have the AC on and I stop at a light or somthing the blower motor on the AC will blow like it should but when I give it gas the blower motor will slow down quite a bit. could this be due to a vacuum leak? it cools just fine its just the blower.

  • dannyharp Oct 01, 2009

    I have another question if u dont mind. When I have the AC on and I stop at a light or somthing the blower motor on the AC will blow like it should but when I give it gas the blower motor will slow down quite a bit. could this be due to a vacuum leak? it cools just fine its just the blower.

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  • Chevrolet Master
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You may have an injector that is hanging up infrequently. Try a bottle of fuel system cleaner. Also you'll want to check for any possible vacuum leaks. Your ears will be more handy than your eyes while checking for a vacuum leak. Listen carefully for a hissing sound around the throttle body/ air induction tubes.

Posted on Sep 30, 2009

Testimonial: "thank u. i do remember hearing a hissing sound."

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