Stumbling at idle on LQ9 is this common?
Apr 7, 2006 | 07:02 AM
#11
TECH Junkie
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From: Spring, TX
Originally Posted by dirtdiggler02
mine was doing the same thing, i just raised the idle 50rpm's and it's fixed.
Man!!!!!!!....Is that pic of you???? I wouldn't have posted a picture like that if that were me!
The truck was fine, but you went too far with that pic of you!
Jim
Apr 7, 2006 | 11:13 AM
#12
Has the dealership done a injector balance test? What they would be checking for is a stuck injector or leaking injector. With your fuel trim #'s positive, you could have a stuck injector? They all have a little quiver at idle, but not a stumble. My "LQ9" with 222/228 .567/.567 idles real good.. And since I,m around the stock trucks all day long, I would know if this is inherent to all "LQ9"? Any questions e-mail me at "dougcaffrey@jimmygraychevy.com"
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