Fox T-Bird/Cougar Forums

Technical => Electrical Tech => Topic started by: sarjxxx on February 03, 2012, 02:36:50 PM

Title: engine temp sending unit pegging guage
Post by: sarjxxx on February 03, 2012, 02:36:50 PM
I replaced the temp sending unit yesterday, the one for the dash with the single wire, not the sensor for the ECU.

When I went to the parts store they were having trouble coming up with the part, everything was coming up as N/A. That is until he looked it up as "with EATC". Then it popped right up. Which is odd because from what I have come to understand the fact that my car has the regular dash and does not have EATC means that I should have the single wire plug, which only showed up for a car that would in their catalog.

Anyway, the problem is that from the very first moment I turn on the key, the guage starts climbing until it pegs and stays there forever. I don't know if I got the wrong unit and its sending bad signals, or if I just got a faulty one or what....

The part number on the Duralast replacement I got was TU25 and another number saying 2035. Anyone know wtf is going on?
Title: engine temp sending unit pegging guage
Post by: Shadow on February 03, 2012, 02:46:30 PM
Quote from: sarjxxx;379664
The part number on the Duralast replacement I got was TU25 and another number saying 2035. Anyone know wtf is going on?

problem solved LOL

i'd have to say it's either faulty or incorrect. or you have 1 messed up wiring issue.. but i'm going to stick with the first 2 options
Title: engine temp sending unit pegging guage
Post by: jpc647 on February 03, 2012, 03:32:26 PM
Mine did this shortly after my engine swap. I ended up with a dorman part(i think). Sometimes it would randomly just peg. I made a thread about it, and I never actually solved the problem. After a while of it being "pegged" and me driving it, not caring, it went away.

I'm not advising you do that, but that's what I did. I'll get you the part number I used, asap.