Oil pressure and temp gauge pegs out once warm

[Mikepdx]

I am experiencing on my 2000 F 53 chassis Georgetown motorhome that after my engine starts for five minutes and warms up my oil pressure gauge as well as my temp gauge go to full pegged out.

When I turn off the engine off with ignition on the oil pressure gauge goes to zero however the temp gauge still goes up to just below red this is after five minutes of running. When I started again oil pressure goes to complete hi Peg and temperature reads just below the red. I took the instrument cluster in to get it checked and everything checks out. Can anyone help me with a possible area to look out for possible grounds or something.

This just started after it was stored for the winter everything seems to be running fine engine seems to be at the right temperature oil pressure looked good as the temperature during warm-up but then jumped up to full peg. Once everything is cold again I can repeat this symptom again and again.

Mike

[Sbrownstein]

Take a close look at the ground strap from the block to the chassis. You might just try using a jumper cable to ground the block somewhere to the chassis to see if you have a bad block ground. Since oil pressure and temp are not directly related, you probably have a grounding issue.

[gmc70]

X2 Just went thru that with a truck I built.