I have a 2005 yukon xl engine that whines very fast when you push the gas and the oil pressure gauge jumps up at the same time

1. Oil Pressure Gauge Not Working You will notice this happens when your oil pressure gauge is not reading, whether the engine is turned off, idle or running. Try to step on the gas to rev up the engine. If the oil pressure gauge still doesn't change its reading, your gauge is busted. It's best to replace it as soon as possible because you won't have any idea if your car is already overheating or not.
2. Oil Pressure Gauge Reading Too Low When your engine is idle, the oil pressure gauge will have a low reading. When the engine starts running or when you're already cruising or on the freeway, your gauge's reading should have increased. If it stays on a low reading, then you now your oil pressure gauge is broken.
3. Oil Pressure Gauge Reading Too High Another common oil pressure gauge problem is when your oil pressure gauge is reading too high when your engine is idle or when it's turned off. Rep

Might help, disconnect negative terminal from battery for 10 minutes, if the compute is getting weird readings this will reset it and maybe help.

Those gauges are electric now, check to see if the wire is on good. The sending unit can fail, cheap and easy once you find it, but requires a special socket, get that at the same time.

What are you going by to determine it has low oil pressure ? Instrument cluster gauge , low oil light ? Have you had a mechanical pressure gauge hooked to see what the pressure really is ?

Yes, most likely it is a defective oil pressure sending unit. However, oil pressure is something you do not want to take chances with. Have it checked with a manual gauge to determine the problem as soon as possible to avoid possible major engine failure. I hope this helps.

Hello: You may have a inaccurate oil pressure sensor, you might try replacing the sensor but you have to remove the intake manifold to access the oil pressure sensor

you need to take dealership have your evaporative emission control system check.also check the fuel pressure regulator for gas leak.most of the time the o - ring will leak.cause gas fume smells

CLUSTER IS BAD, OR GUAGE FUSE IS LOOSE. CLUSTER CAN BE REPAIRED BY SOUTHERN AUTOTRONICS IN RICHMOND VA.

i would take it to the dealer and put it on their specialized computer, it sounds like an ied computer problem.

turn the key to the run position engine off, push the gas pedal all the way to the floor then release it 3 times within 5 seconds, the DIC will say oil life reset.