100 psi oil gauge

[mercrugby]

So last night I tried teaching my girl to drive manual. bad idea, she kept her foot on the gas between shifts and I heard a horrible crackling noise. Figured out it was the alternator belt which is now fixed, when this happened my car overheated and the oil pressure gauge shot to 100 and is still there even starting the car leaving it sit over night. The car was pretty hot got about 3/4 when I shut her down. Belt is on but gauge is still 100, and ideas what this could be? I disconnected battery terminals to try to reset, still same thing.

 

[ohlegend]

Maybe the gauge went bad? There shouldn't be that much pressure after letting it sit overnight.

 

[TSiAWD666]

You could just be grounding out the wire to the sensor. That will make it go to max on the gauge. Might be something hit the wire or something (has happened to me).

 

[mercrugby]

Thanks guys, I'm going to check the sending unit first and unplug it to see if gauge goes to zero, then I might just buy a new gauge and not dick with it.