idle issue
#1
idle issue
I have a 2003 Yukon with the 5.3. when it idles the RPM's drop to about 400 and it almost dies. I have replaced plugs and wires but the issue remains. anyone experienced this?
Thanks
Thanks
#5
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Join Date: Oct 2010
Location: Rock Hill
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Mine is an 07 with 227k on it and it does this almost daily? I've cleaned the throttle body and mass air sensor with no change. No vacuum leaks last time I let my ocd get the best of me. I believe mine idles so low that the alt can't keep up with what the BCM is telling it to output and the headlights will go dim? I figure it's just getting old and until it throws a code there's not much I can do.