2004 Chevrolet Silverado "high oil pressure chevy truck" Questions

Oil Change and High pressure I just did an Oil change in my truck. It's a 5.3 Litre, I put 5 L's of oil in it and now the Oil pressure is running between 275 and 400. Why is it so high? What can I do?

...oil pressure rel. is a bit high I've seen 50 or 60 psi but 80 seems a bit high because you dont want to wash out bearings also though one last tought was hooking up a manual oil gauge temp. to verify ...

...oil and see if it frees up. Good idea to have an external mechanical gauge put on it to check actual pressure If it actually is that high it can blow out the filter seal. (bad) Gauge itself may also ...

oil pressure, high temp, low volts no gas, and speedo inop. All of the reading will fluctuate and I know that all of the fluids and pressures are at the correct levels. Any answers? replace instrument

...oil, and it not leaking. Where is it going? This is one that you will need to do some careful looking to find. every hose connection needs to be looked at for damp residue as well as all gasket ...

High Oil Pressure In My 1991 Chevy S-10 4.7 Blazer My 1991 chevy S10 blazer has unusually high pil pressure, i replaced the oil filter and all other fluids just recently so i dont know why the ...

express oil pressure runs too high. It runs 80psi. It idles at 55psi. What is the problem? The engine oil filter may be blocked and causing high pressure as the pump is trying to force the oil through

...oil pressure high to low change oil brands a week ago now the oil pressue is dropping big time the motor not ticking or anything never had problem with oil pressure before It may be a coincidence but ...

...oil pressure is high and ticks until the pressure goes down and the engine is warm. I replaced the oil pressure regulator it helped the oil pressure from going super low but didn't fix the high ...

...oil pressure. It'll drop to mid or high 30's at idle. Hope this helps. I worked a jasper engine about ten years ago in the test room and if the rebuilds pulled more than 15 psi at idle they passed so ...