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Discussion Starter · #1 · (Edited by Moderator)
Just bought a 2012 Acadia a few months ago. Has 118,000 miles on it. All of a sudden the check engine light intermittently comes on and off. It’ll be on one day and off the next day. Never stays on for more than one day. When I check to see what codes it was throwing I get P0021. Anybody had a similar experience?
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Discussion Starter · #3 ·
Dealing with P0020 on the wife's car as we speak. That and a random/multiple misfire code
I think we figured it out on our car! If the oil pressure is off at all it sends a (cam sensor?) misfire code amongst other things. So as soon as my mechanic changed the oil and reset the codes it quit firing.
He said as soon as my oil gets about a half quart low it will probably happen again. So to make sure to just keep my oil topped off.
Hope this helps!
 
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