high idle


Old 10-25-07, 09:55 AM
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high idle

Hi I just replaced my intake gasket on my 91 chevy van 350 with throttle body injection when i had the intake off i cleaned the bottom of all gunk! when i put it back together engine wont idle down wondering if theres a senser on the bottom of intake that i could of damaged? any help would be appreciated thanks
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Old 10-25-07, 10:15 AM
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I would say you have an intake leak. If you didn't get the surfaces completely clean and the bolts torqued in sequence to the specified torque the intake may not be sealing = leak = higher idle rpms.

Hope this helps.

Old 10-25-07, 11:38 AM
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yes sounds like a vacuum leak somewhere
Old 10-25-07, 03:14 PM
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Yep...I'd look for a leak
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