2000 silverado high /rough idle when cold - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 12-01-2014, 03:03 PM   #11
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and if it gives you an option to upload it so we can see everything that would help
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Old 12-01-2014, 07:23 PM   #12
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ok so do i plug it into the truck then start it up or let the truck run thru its bad cycle first then plug it in..... sorry for my stupidity on the scanner
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Old 12-01-2014, 08:09 PM   #13
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ok. so hooked up the scanner with it running and no dtc or freeze frame data... but... yesterday i re torqued the intake bolts , there were a few that needed a few turns. i torqued them all to 89 inch pounds and never tried starting it agsin until today. it never reved or stalled and its - 20 here today. high idle stayed about 1100 and as it warmed it slowly worked its way back down to 5-6. as it should. so now i an really thinking the intake gaskets are the culprit correct??
if so i need to know how to get the clip off of the fuel feed and return lines without wrecking them any thoughts thanks
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Old 12-02-2014, 08:10 AM   #14
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if your bolts weren't tight might be fixed, you dont want to disturb the fuel lines if you dont have to. the rubber orings get hard and leak after you take them apart
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Old 12-02-2014, 11:16 AM   #15
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ok, so do you think it is best to just leave it then? it does run a lot better already, there is a little stumble I can feel when its idling but probably a plug or wire,
is that the main feed lines you are talking about that may leak? if so can I not just replace the o ring if the leak? thanks
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Old 12-02-2014, 01:01 PM   #16
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if it runs good why mess with it? those fuel line conectors frequently leak when you mess with them and sometimes you can get the right orings but around here the parts stores just have ends, so if you cant wait for the orings to be mailed you are changing the whole end.
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Old 12-02-2014, 04:37 PM   #17
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ya I hear you but I just hate for it to fail when it gets a lot colder out as I don't have a garage to work in, but I guess I will see how it runs for awhile,
thanks for all of your help it was much appreciated. I will keep you guys informed
thanks again
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