Mrducky
Newbie
Posts: 1
Reg: 09-25-24
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09-30-24 12:53 PM - Post#2874322
I have a 1999 chevy k2500 5.7 that has been doing some high idling and some revving up and down. It high idles when I shift from drive to park. It revs up and down when in drive but at a complete stop like at stoplights and also when I'm going down the highway with my foot off the gas. The first thing I did was clean the throttle body and replaced the gasket and this made my issues go away for two days. Then I replaced the idle air control sensor and it fixed the idle problems for a week, then they came back. Then I replaced the throttle position sensor and had no change. Feels like I'm so close yet so far, not sure what direction to go now.
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 4dr 57
"11th Year" Silver Supporting Member
Posts: 4856
Loc: Texas Hill Country
Reg: 11-10-04
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10-01-24 06:40 AM - Post#2874333
In response to Mrducky
try running a scan tool to find trouble codes ortheriwse you will always be guessing.
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