Question about 2005 GMC Yukon
Purchased 05 yukon four months ago (50,000 miles). only have had oil change and auto start put in since then. Auto start installed three weeks ago, starting seeing engine light come on spiratically (manual says light is triggered by emissions issues). then vehicle started idling rough on and off. both problems have steadily gotten worse. today when accelerating the oil pressure would increase from normal (40) at stop to (60) while accelerating. the exhaust seems to get real strong smell recently (here and there) and seems as though black residue on driveway after letting vehicle warm up for a while.
Ok not to keen on newer vehicles actually prefer the carburated ones, but oil pressure is supposed increase on your gauge when accelerating. If it wasn't going up before and just staying at 40 the needle might have been stuck. But idle should be 40 lbs and when you work the moter (reving or driving down the road) the guage should show an increase for every 1000 rpm above idle. Second if you can get a hand held scanner (bought mine off ebay for $30) check for any codes in your computer you will probably find that you either have a bank running wrong or some other sensor that needs to be changed. I'd go with getting my own scanner it saves alot of money and time, garages make their money here.
Posted on Jan 03, 2009
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Posted on Jan 02, 2017
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