Throttle sticking


Old 06-13-04, 09:32 PM
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Throttle sticking

99 Silverado 1/2T 5.3l engine.

What is the fix for a sticking throttle on this vehicle. It sticks when closed, but is friction free after it breaks loose. Seems to be a common problem with these trucks.

Thanks for any ideas.
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Old 06-14-04, 06:45 PM
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Join Date: Mar 2003
Location: Texas
Posts: 616
Throttle Problems

A lot of people are having trouble with the throttle cable and with carbon deposits in the throttle body on the trucks. Check the cable to make sure it is in good shape and there are no places it could be hanging up or getting caught. Next, I would clean out the throttle body with carb spray and a rag. Pull the air tube (duct) to get to the throttle body. Try to get most of the black or gray off of the throttle body with the cleaner and a little bit of scrubbing with a rag. Make sure to get the throttle bore and plate good.

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