Engine idles too high?

hoyt · 2013-04-06T02:12:25+00:00

I just recently had exhuast put on my truck and I put a cold air itake on. Since it has beEn reving up to about 2,000 rpm on start up and when I rev it up and it stays at the higher rpm for a few seconds and while driving it does the same Thing until you get to a stop or slow down. I was told that the sensor just needed to adjust to the new air flow cause of it getting more air. Its been 2 weeks since I installed it and its still doing. I have tried disconnecting the battery to see if the computer would readjust to it and it hasn't.... Please help!!! Thank you... Oh it has the 5.3 litre engine with the v4 mode

2009 CHEVROLET SILVERADO

53,000 MILES

HOMER1967

CAR REPAIR CONTRIBUTOR
875 POSTS

i would suspect a faulty idle air control valve.although there are t.s.b's for this vehicle to have the pcm re-flashed.but i would try a new i.a.c.valve first.

Jun 18, 2020 at 1:21 PM (Merged)

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