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?

Answered by JDL (expert)
14,406 answers provided

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???

Response from yukon99
3 questions asked

The location is in the picture below.

Answered by JDL (expert)
14,406 answers provided

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???

Response from yukon99
3 questions asked

Did they give you any warranty, if so, talk to the people that did the work. What kind of work was done?

Answered by JDL (expert)
14,406 answers provided

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....

Response from yukon99
3 questions asked

Good idea.

Answered by JDL (expert)
14,406 answers provided