rough idle till warm
#1
rough idle till warm
I have a 2005 chevy tahoe with the 5.3 in it. when you first start it up it idles like it has a big cam in it, but as soon as the engine warms up it idles fine. runs fine no matter what. my brother works for a chevy dealership and said that the number seven injector was dirty. he cam down and cleaned injectors and tried it and it didnt do it after that, but the next day it started doing it again. anybody else have a similar problem?
#2
I have a 2005 chevy tahoe with the 5.3 in it. when you first start it up it idles like it has a big cam in it, but as soon as the engine warms up it idles fine. runs fine no matter what. my brother works for a chevy dealership and said that the number seven injector was dirty. he cam down and cleaned injectors and tried it and it didnt do it after that, but the next day it started doing it again. anybody else have a similar problem?
Last edited by jimweis; June 16th, 2009 at 8:22 PM.
#3
Super Moderator
Professional Mechanic
Professional Mechanic
There is about a 95% chance that it needs intake gaskets. That is almost the exact symptom. Once the engine is warm everything expands and seals back up
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