Question about 1995 Honda Prelude

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I know someone with a Honda prelude 1995 model... and his car seems to rev up and down randomly when idle or moving without touching the pedal. Is it possibly the battery because they just jump started the car when it happened. Or could it be anything else?

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Check the coolant level first, if it is low on coolant you'll have a surging idle. If the coolant is okay then the IACV on the throttle body is faulty. That's the part with two smaller coolant hoses attached to it.

Posted on Apr 29, 2010

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