1999 GMC Yukon

[maryshusband]

Well seasoned Yukon. Almost 300,000 miles on the truck. No clue on the engine.Used as a work truck for 2 years. New exhaust. Sounds like a hot rod and ran like one till the transmission freaked out. It will drive if you take it to 1st gear. Won't hook up in drive. I'm too busy to work on it. It is 4X4. It had a Jasper engine right before I bought it. I put in new carpet and ran it daily till this week. Ask me anything you need to. Relatively new starter, water pump, fuel pump and mass air flow sensor. Will consider a trade for a truck

 

[Eman85]

New engine, looks like someone left the breather tube off. Won't run good like that and will suck in dirt while air is bypassing MAF.