2005 GMC Yukon oil pressure extremely high.

No damage will occur. Have you checked the oil pressure with a manual test gage? If not do that and please understand GM oil pressure gages are prone to reading high pressure when the sender is defective.

Another gauge needs to be connected to the car to check that oil pressure sensor or the gauge itself is not the problem.

If an independent gauge shows the same readings I would suspect a sticking oil pressure relief valve.

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.

Either it's low on oil, it's way past due for an oil change, faulty pressure sensor or you really have a problem with the oil pump. You should have this checked ASAP engine damage could happen real fast.

Sounds like bad oil pressure switch or cable has come loose. More than likely loose cable.

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

try changing oil and filter

my 2004 yukon engine oil sensor is at its highest, what is the problem

Most likely the oil pressure sensor is bad. Its located in the very rear of engine on top of bell housing area.

could be oil pressure switch in eng block ??engine light on? if so scan it for fault codes retreve and start looking for dealer explanation perhaps