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Check gauges lite. Oil pressure drops to near 0 then back up. Oil Cooler Lines??

(2000 GMC Jimmy)
in Taylor, MI on January 17, 2012
2 days ago, my "check gauges" light has been coming on...noticed that oil pressure gage is dropping from normal area to nearly 0, then back up again. Seems to drop as I'm stopping or slowing to make a turn but I'd have to check that again. This morning, I went out to check the oil & nothing is registering on the dip stick at all (when cold). No knocking sound and didn't notice any problems with driving when I came home from work last night. I'm just barely over due for oil change which is what I planned to do today but now I'm not so sure that is the best way to address the problem. Called the dealership to ask price to run diagnostic but was told $100 minimum to check (which I just can't afford right now)...especially if that price won't even repair any problems.
I just had oil cooler lines changed less than 6 months ago at "The Brake Shop" and know they used "after market" parts so wonder if this problem could be related & if I should take it back there. No noticeable leaking oil this time but it had to go somewhere. Thinking maybe the seals aren't working properly?? That was an expensive repair to be having problems so soon again but I doubt they will admit it's the problem if I take it back there to be looked at again so need some advice??? What should I do? Can AutoZone check the "check Gauges" problem even though they said can't check the "service 4 wheel drive"? (another problem I've been having)
Or...Should I just go ahead with getting an oil change to see if the problem goes away first and would they be able to run codes on "check gauges" light coming on?
Displaying 1 answers & 0 comments
Popular Answer
on January 17, 2012
check your oil sending unit had one go bad and droped all oil in 2/10 of a mile went from slow leak to dumping oil
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