2002 GMC Yukon Q&A
2002 GMC Yukon Question: rough start up when cold
what are codes - delane 72 garage and body shop
Intake manifold is leaking. Once it warms up it has expanded enough to not have as bad of a problem cold - Visitor
Problem only occures when temps get below freezing. Will, on occasion die when idling. After truck warms up, the engine will idle normally, but engine warning light will stay on all winter. Both pr...