Just trying to figure out what's up with my temp gauge. It wont stay in one place. I already replaced the thermostat, Not it. It blows hot air no problem. It just wont keep a steady temperature.

Any suggestions,

Greg

how hot does it get its normal for it to move around

you probably have air in the system, did you filll it up through the cross tube?

how hot does it get its normal for it to move around

It moves around from below normal (7:00 o'clock) to R (10:00 O'clock) and wil do it in a matter of seconds.

Greg

Sending unit? Worth a try.

you probably have air in the system, did you filll it up through the cross tube?

Yes I did fill it up through the cross over tube. It was doing it before I replaced the thermostat.

Thanks for the help guys.

Greg

Sending unit? Worth a try.
I like to think I know a little about cars then something common like the sending unit comes up and I go haa. Where is it and what does it do?

Thanks for the input.

Greg

either the sender, wires, or the gauge and the sender is cheap, easy and more than likley the prob

It communicates with the guage to give you the reading. I never changed it on the MarkVIII but I'm sure someone will tell you where it is. I could look if need be, the car is just sitting in the heated garage collecting dust.

I like to think I know a little about cars then something common like the sending unit comes up and I go haa. Where is it and what does it do?

Thanks for the input.

Greg
i believe it is right at the base of the crossover tube.

There is a sender on the drivers side bottom of the crossover tube, that should be it. The other side is a sensor for the computer, if I had to guess.

There is a sender on the drivers side bottom of the crossover tube, that should be it. The other side is a sensor for the computer, if I had to guess.

Thanks for all the help guys. I will give it a try in the morning.

Greg

mine jus started doin the same thing... it will bounce from way cool to wayyy hot, but the car is normal. i think im gona throw another sendin unit in mine as well. i love this site, no matter what misfortunes befall my car.. i just come on here and the answers are usually easily found. :V