Quote Originally Posted by Holdmybeer View Post
The gauge is getting additional voltage from somewhere and it is making the pressure read 15psi. Once the sensor sends the actual voltage it is additive and looks high. Check the wiring in the dash on the gauges.
I would bet there are several loose nuts on the back of the gauges and grounds and you are getting a false reading.
If the oil level is right and you aren't blowing oil out in the engine compartment and there is not oil in the water then you are fine.
Yep, I was thinking grounds as well