1994 Chevy Truck high idle

1994 CHEVROLET TRUCK
200,000 MILES • 6 CYL • 2WD • AUTOMATIC
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Recently after presure washing the motor on my truck I developed a ver high idle. Before that everything was fine with it. I,ve spread all alround the throttle body and vacuam hoses and never got a change in the idle speed. This is my only mode of transportation and, when I put it in gear with the idle so high it feels like the transmission is going to jerk out. Please help !!! Thanks again Donovan Jordan
Apr 25, 2009 at 7:13 AM
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2CARPRO JACK
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Look for water in the connectors on the Throttle Body unit.Especially the square 4 wire connector on the Idle Speed Motor.
Apr 27, 2009 at 9:08 PM