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Acts like throttle sticks when let off. What could it be

Tiny
63 FORD UNI BODY
  • MEMBER
  • 2002 GMC SONOMA
  • 110,000 MILES
2002 4.3 sonoma 5 speed acts like has a vacuum leak around 3 grand and wants to stay idoled high for awhile. Have checked around the upper intake with carb cleaner to see if it was busted and nothing. Changed mass air flow and throttle position sensors also. Not sure what else to do?
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Monday, July 30th, 2012 AT 7:16 AM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Check the throttle cable for sticking could be a frayed cable. Disconnect it from the throttle and see if it idles normally. Clean the air passage to the idle air control valve with tbi cleaner.
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Monday, July 30th, 2012 AT 11:00 AM

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