1999 GMC Yukon Repair Question
i think is not timed right
Does it run ok at highway speed? Clean the throttle-body and check the iac. Any applicable trouble codes? If you have the spider fuel system, they are noted for problems. The fuel poppets may need cleaning?
Yes it runs great like a dream.. just that is idling rough at a stop,
when the rpm is up by 700 is fine......
whats the iac located???
The location is in the picture below.
ok i'll check it... oh by the way there are no codes showing yet...
thanks.... but it couldnt be the timing of a bit, cause they recently did some work before i bought it???
Did they give you any warranty, if so, talk to the people that did the work. What kind of work was done?
yeah, I think they change the head gaskets. and i think they did something wrong or put something in the wrong place....
but yea im heading up there on saturday morning....