Question about 1998 Chevrolet Express

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Recent intake gaskets replaced on the coolant system. Oil change. Tune up. When the weather got wet, like in years past, it runs rough for quite some time before it clears up, usually when the weather gets dry. Popping, hesitating, etc. It would clear. It seems to have progressed (with all the recent wet weather) to the following: now the engine is racing in idle and will travel up to 40 mph without stepping on the accelerator, almost like the throttle is stuck. Solutions?

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Base gasket on throttle body is probaly leaking with engine idling spray alittle starting fluid on base if it idles up or dies out that is base gasket

Posted on Mar 16, 2011

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Posted on Jan 02, 2017

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