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Oil pressure dropping intermittently

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jctx09
New User

Jan 4, 2010, 9:18 AM

Post #1 of 3 (3060 views)
Oil pressure dropping intermittently Sign In
I have a problem with the oil pressure on 2003 H2 Hummer. When I first drive the vehicle, my oil pressure is fine. After a while, (it could be 5 minutes or 2 hours but usually between 15 and 30 minutes), the oil pressure will quicly drop and I have to stop the vehicle, of course. I can let it sit there for a few minutes and then turn it back on and drive it again for a while, up to a few hours sometimes.
The repair shop recommened flushing the oil and this did help because before this I couldn't keepy any pressure up for more than few minutes. What would my next step need to be? Is this due to clogged up passageways through the block or a problem with the oil pump or pan? Any help is appreciated.
Thank you


brager
User

Jan 4, 2010, 10:33 AM

Post #2 of 3 (3056 views)
Re: Oil pressure dropping intermittently Sign In
1st whats your mileage? how are you determining oil pressure drops? do you

have a pressure gauge built in the dash? or are you
seeing a oil light on then stopping?

what i would do is hook up seperat a oil gauge just
to be sure its not the vehicles gauge thats faulty
if that checked out ok then you i would drop the
oil pan and check the oil pick/up screen for sludge


brager
User

Jan 4, 2010, 10:34 AM

Post #3 of 3 (3053 views)
Re: Oil pressure dropping intermittently Sign In
In Reply To
1st whats your mileage? how are you determining oil pressure drops? do you

have a pressure gauge built in the dash? or are you
seeing a oil light on then stopping?

what i would do is hook up seperat a oil gauge just
to be sure its not the vehicles gauge thats faulty
if that checked out ok then drop the
oil pan and check the oil pick/up screen for sludge





 
 
 






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