Question about 2004 GMC Envoy

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Oil pressure reading in 2003 gmc envoy

I had my oil changed in my vehicle 2 days ago. I noticed yesterday that my oil lamp gauge was showing a reading of 60, the next reading before the 80. on the gauge there is 0, 40, 80. looking at the pointer I would assume it is at 60. Is that some sort of problem? I would think it should be at 40, in the center?

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No problem with the oil pressure, the norm is between 40 to 60. Anything lower then 40 you have low oil pressure and anything above 60 then you have high oil pressure which is caused by a blockage in the system.
What is common is the oil pressure gage fluctuating for the first 200 miles if the oil pressure sending unit is getting worn. Good maintenance will keep the engine clean and running good but the oil pressure sending unit is inexpensive and easy to replace. Next time you do an oil change you can have them change the sending unit.
Good luck and hope this helps. You can pick up the sending unit at Auto Zone and most auto parts store and will have the step by step to replacing it. If you do attempt to replace it. make sure you DO NOT USE any Teflon tape or silicon on the threads, they are tapered and need a good ground to the engine for proper readings.

Posted on May 28, 2009

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That should not be any problem, in fact it's better to have pressure around 60... good lubrication going on.
Best to keep an eye on the oil pressure and when it tends to drop more than usual while at idle, check your oil level... a lower pressure can be an indication of the oil level getting a bit low.

Posted on May 28, 2009

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That is a little high. But it is not high enough to worry. It is more worrisome when your oil pressure drops to 0 you will be ok

Posted on May 28, 2009

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60 PSI is excellent oil pressure -- 40 is where it will be in about 50,000 more miles. You're golden.

Posted on May 28, 2009

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http://www.chiltonlibrary.com/content/images/21202/images/21202_GDIA_g518.pdf

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2 Answers

My 2003 gmc envoy oil pressure keeps going up and down while i am driving. i recently just changed the oil.


Dear bunnydawg, Fri 2-20-2009 7:30pm EST (USA)

RE: Oil Pressure going UP & Down!

I'm going to assume you had someone or a shop change your oil.
If you did I would immediately take your car to another place as your oil gauge should not be doing this. Worst case is you have an oil leak so check your oil immediately and add oil if necessary before driving.
Most likely someone put in the wrong oil filter and your oil is having trouble circulating since this is a fairly new car!
Also, if your oil was overdue a change.....have it changed again to clean it up as this could just be it's still dirty and clogging the new filter.
I wouldn't worry too much if your oil dipstick is showing it full!
But do a follow-up asap!
jack
b0e9b85.jpg Let me know how things work out ok?

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