Originally posted by Asterion76:
I performed a search before I posted the thread and nothing came up to address the problem. However my spelling skills are lacking. From what I gather about the sending unit is that if there is a break or fault in the wiring the gage will peg out at the left hand side (cold). If the unit is bad or dirty it will peg out on the right hand side (hot). I will try to disconect the wire tonight to see if that has any effect on the gage. And then I will replace it just in case. If I can figure this out it might be good info for the website. Thank you for the link to the other thread.



Not in my case. I have the Hanyes book that told me to check the white/red wire from the sendor and short to ground and see if the temp goes to hot and replace it.

Well, nothing happend to my car as the guage would just sit there at cold the whole time. The book sad to check the wires and other things like that and I did with no luck. It didn't matter if it was plugged in or not, I got the same cold reponse. I thought the guage was dead.

However, after putting in the new part the needle went straight up to the center as the car warmed up. I guess there is just no sure way to say if these sending units are going bad when stuck at cold or hot.

It never hurts to replace old car parts that would sooner or later fail. This can be a pain to replace without the right tools. Use a deep socket and small ratchet.