Question about GMC Yukon
. I wish I knew the total mileage your Yukon has traveled since 2002 . Also , heavy loads and off road driving habits can affect the overall life of an engine . Regardless , I will assume the problem is not a worn out motor. Also , I will assume that you change your oil and filter regularly as outlined in your owner's manual. And finally , I will assume the engine appears to be running smoothly , in other words: running on all the cylinders without missing, backfiring, and so on.
Now , if my assumptions written above are all correct , replace the oil pressure sending unit . In my years of experience working on G. M. motors, it has probably gone bad. Also , it is very inexpensive to purchase and easily replaced with a deep well twelve point socket in about five minutes . If that solves your problem, great . If it does not change anything , the Nextstep would require a Automotive technician with a accurate oil pressure gauge to measure your engines oil pressure at idle , and then the rate of the oil pressure increase while accelerating from idle to about 2000 RPM, to help determine whether not you have worn out bearings in the engine or possibly a worn out oil pump. Think positive , replace the sending unit first . Good luck .
Posted on Mar 13, 2011
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Posted on Jan 02, 2017
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