Parts Question related to Temp Guage

[nistah]

Hi I am wondering which part feeds the Temp gage on the dash to the left of the fuel gage. Would it be the Temp Sender Unit or the Thermostat? Thanks in advance....

[DST]

It would be the temp sending unit. The thermostat is just a mechanical valve that opens when engine comes up to operating temperature.

[nistah]

OK thanks, I have a replacement Temp sending unit and gasket that I need to install. Heard this is much easier than the Thermostat. Can anyone point me to a DIY that is posted either here or on Audizine etc? Thanks !!!

[hahnmgh63]

You mentioned gasket. What you should have is the temp sending unit, most likely with a Green top but aftermarket may have a black top, and you should have an O-ring that goes around the Brass part, it mounts at the top rear of the engine. They are held in by a plastic clip that should be replaced as they get brittle with age and break easily.

[P1054]

I replace mine earlier this year. It was a fairly straightforward process and I managed to do it without removing the air filter housing, although I wouldn't necessarily recommend it unless you have really small hands. The link below describes the "normal" way to do it, especially pay attention to ttboosts suggestion to tie a wire (or string) to the c-clip when you go to reinstall it. I didn't the first time, dropped it into the bowels of the engine bay, and tripled my total repair time trying to fish the thing back out. All in all, it's a very simple and inexpensive fix and should solve your gauge problem..

http://www.rs6.com/showthread.php/23267-coolant-temp-sensor?highlight=coolant+temp+sensor