The oil temp gauge on my '97 993 Cab behaves normally until operating temp is reached (second mark). The needle then sometimes jumps to pinned in the red. A tap on the gauge returns it to normal, so I'm thinking it's not the sensor.

Some pin in the multiplug on the back of the gauge is not making a good connection? I've cleaned the pins, but was afraid to spray into the pin holes.

Has anyone experienced this?

Thanks!

EDIT: This scenario seems to be exactly like Stealth 993's post from 2007. https://www.6speedonline.com/forums/...oil-temps.html

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If you tap on the glass does it return? You can try to clean the contacts on the sensor & the gauge. If that doesn't help, you got to send the gauge out for repair.

 

Thanks, Stealth.