Question about 2000 Chevrolet Astro

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98 Chevy Astro van AWD bucks & extreme hesitation on initial acceleration. There are no codes in the computer & check engine light is not on. We replaced the spark plugs, wires, distributor cap and rotor, but the problem still remains.

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  • Anonymous Mar 15, 2014

    03 mountaineer is hesitating & bucking on acceleration

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I'd check for vacuum leaks next. use a spray can of intake or brake cleaner. spray around vacuum lines, manifold gaskets etc. if the rpm increases you found a leak.

Posted on Jun 25, 2009

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These details will help.

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