2003 Hummer H2 Oil pressure dropping intermittently

2003 HUMMER H2
160,000 MILES • V8 • 4WD • AUTOMATIC
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JCTX09
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I have a problem with my oil pressure. 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
Jan 4, 2010 at 10:04 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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