throttle/idle on 1999 Chevrolet Silverado 2500

Truck lunges when stopped and truck is in gear. When the rpms drop below 750 my truck begins to rev up and down tring to pull the truck forward (or backwards in reverse)

by in Woodruff, SC on September 10, 2010
0 answers
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A dirty throttle body may cause a lower than normal idle and possible stalling condition. Performing a throttle body service will commonly correct this concern.
I have a 04 chevy silverado 2500 and i think the throttle body is dirty ? the truck will have a light come on that says reduced engine power and sometimes it will cut out it only happens once in aw...

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