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10-11-2012, 08:16 PM
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#1 |
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Moderator
Join Date: Dec 2006
Location: West Ashley
Posts: 2,498
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5.3 Idling Problem
We have a problem with a 5.3 in a 2000 Chevrolet Truck. When coasting to a traffic light, it will idle up. When put in neutral, it will go to 1,200 rpm. Also, it will delay shifting as if in the tow/haul mode. Also, after sitting for a while, it will temporarily run fine. Any ideas?
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10-11-2012, 08:52 PM
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#2 |
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Senior Member
Join Date: Mar 2008
Location: SUMMERVILLE
Posts: 3,681
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Throttle body clean? Sometimes that will make them act weird or could possibly have an intake leak. Some people have issues with the gaskets leaking
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IM BAD BOB 
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10-11-2012, 08:57 PM
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#3 |
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Senior Member
Join Date: Apr 2012
Location: Guyton, GA
Posts: 1,412
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Kinda sounds like a vacuum leak....
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Working on junk.... |
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10-11-2012, 10:02 PM
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#4 |
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Senior Member
Join Date: Sep 2008
Posts: 1,158
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i probably shouldnt respond but i agree with robert, also do a sweep of the TPS.
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10-11-2012, 10:03 PM
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#5 | ||
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Moderator
Join Date: Dec 2006
Location: West Ashley
Posts: 2,498
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Quote:
Quote:
You have stand on the brakes hard when this happens (high idle) when coasting to a stop. Thanks for trying to help. |
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10-11-2012, 10:50 PM
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#6 |
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Senior Member
Join Date: Nov 2011
Location: NORTH CHARLESTON
Posts: 593
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tps is most likely sticking i had the same issue just cleaned the throttle body and replaced the sensor works great now
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Linear Mode
