Erratic Temp Gauge

[Sean-e9]

My temperature gauge bounces up and down rapidly, rather than providing a steady reading. Has anyone else experienced this?

 

[adawil2002]

Sounds like either a bad sensor, bad ground or intermittent short in the circuit.

 

[HB Chris]

The wire at the thermostat housing can be very fragile, move it and see if that has any effect, also, crimp the spade terminal a bit tighter.

 

[Honolulu]

Flaky gages were a common item on 2002s which have much the same electricals. The fault was found to be a bad instrument cluster ground and fortunately (for 2002 owners) the instrument cluster is pretty easy to remove. On your coupe, if this is the problem, it's a good deal harder to get the cluster out. DAMHIK, but I have big hands.

 

[Arde]

If your temperature bounces up and down I would self-quarantine for 14 days and seek medical help .
Seriously, sounds like flaky ground as many have said before.

My temperature gauge bounces up and down rapidly, rather than providing a steady reading. Has anyone else experienced this?

 

[born2boost]

I had the exact same issue.... turned to be a bad connection right at the thermostat sensor as mentioned above.