Quote Originally Posted by jteske88 View Post
Ive actually had a issue with my harness. Jiggle the line and see if it bounces.
That's exactly where I'm at now. Is that common?
I only measured the wires continuity without jiggling and it was good.
Besides, I never had fast gauge bounces when I drove, it looks like it honestly reflects the temp of the coolant going up and down according to driving conditions with an average that is strangely about 20 degrees lower than where it's supposed to be.

I'm a senior engineer and deal with sensors and control systems everyday for a living and I have this gut feeling that it's not anything electrical or electronic, but it's a mechanical thing like a water pump, vacuum leak, head gasket, ... etc.