WHAT IS CAUSING A COOLANT TEMPERATURE GAUGE MALFUNCTION?

1997 Nissan Hardbody

Tiny

donaldp8934

July, 7, 2012 AT 7:30 PM

The gauge is reading hot quickly and bounces around rapidly. I replaced both of the coolant temp sensor/sending units, nothing changed. I checked the gauge, unplugging it reads cold and grounding it reads hot. The engine is not getting hot, the radiator cap is brand new.

3 Answers

Tiny

rasmataz

July, 7, 2012 AT 7:57 PM

Check/Test the thermostat if okay-could be airlock try bleeding the cooling system and see what happens-let me know

Tiny

donaldp8934

July, 7, 2012 AT 8:03 PM

It was also replaced same time as the coolant temp sensors. Just drove it, the gauge needle move along with any electrical devices, it moves up/down with the blinkers simultaneously, up/down with heater fan on/off, head light also. Must be a ground short, will run a new wire.

Tiny

rasmataz

July, 7, 2012 AT 8:07 PM

I'll be waiting

Please login or register to post a reply.

Radiator Replacement Kia Sportage
Radiator Replacement Mercedes Benz ML 500
Thermostat Replacement Chevrolet Blazer
Thermostat Replacement Mercedes Benz C230
Thermostat Replacement Chrysler PT Cruiser