1999 GMC Yukon "oil psi high" Questions

...psi on top rpm ALL oil filter are bypassing as 50 psi for safety. During normal drive,it your read out can range from 22-50 psi It should drop quickly. A slow drop read is a indicator or oil and or ...

Oil pressure reads high 40 to 60 psi, guage never flucuated this much before new engine Brand new long block in a 97 GMC Yukon 5.7L EFI just fired her up, the electronic oil pressure and water temp ...

...psi but i checked the oil and the oil level is normal. Checking oil level won't tell you anythingYou need to put a mechanical gauge onthe motor,you can't go by the dash for accuracyYou could ...

psi. Have you checked your oil? Have you changed your oil and filter. High mileage and poorly maintained motors will eventually wear out and develope low oil pressure. A tempary cure would be to use a

...120 to 150 psi is good, if ok , check #2. If this has the older efi intake, its rare, but also could have a failed intake gasket for that cylinder and be sucking oil from underneath.Hope this

...oil such as 10W-30 or 10W-40 should solve this problem. THIS SOUNDS LIKE THE FUEL PUMP PRESSURE MAY BE DROPPING OFF AFTER SHUT DOWM, THERE IS A FUEL PRESS CHECK VALVE BUILT INTO THE FUEL PUMP TO ...

...Oil psi sensor can go bad. If PSI correct then is PCV valve clear? I'm more inclined to think you have some kind of electrical problem, false gauge, ignition quits or fuel delivery problem. Extreme ...

...oil filter Normal pressure with HOT oil is 15 to 20 PSI at tick over and around 60 PSI when the engine is reved up Note oil pressure can be as high as 90 psi with engine oil cold and engine reved ...

...psi. At speed, oil pressure again will rise to high end normal when heavy on the pedal than settles back close to mid range 40 psi and when slowing or coasting, pressure will fall significantly below ...

...psi. At speed, oil pressure will rise towards the high end of the normal range when heavy on the pedal than settles back close to mid range 40 psi and when slowing or coasting, pressure will fall ...