base93lumina Posted February 29, 2012 Report Share Posted February 29, 2012 (edited) So i just bought a new temp sending unit to make the gauge on the Euro cluster work. I got it installed today and it slowly climbs to 260 (takes about 1 minute from cold) and just sits there, and trips the light. Now, the fans do not come on, and its not any hotter than usual out the vents, but im wondering what the deal is? Hoses feel normal. For the cluster conversion the one wire sensor in the rear head is the one to replace right? Before it would stay full cold, and never move (for obvious reasons lol) Now, i did teflon tape the threads on the sender (as i usually do with threaded coolant taps). Was taping it a bad idea? What happened here? Edited February 29, 2012 by base93lumina Quote Link to comment Share on other sites More sharing options...
base93lumina Posted March 1, 2012 Author Report Share Posted March 1, 2012 Man this site is dead! Anyone? Quote Link to comment Share on other sites More sharing options...
AL Posted March 1, 2012 Report Share Posted March 1, 2012 Is replacing the sender necessary for the new cluster? Quote Link to comment Share on other sites More sharing options...
3pt1lumina Posted March 1, 2012 Report Share Posted March 1, 2012 Yes you have to replace the sensor. When I did the swap on my car, I bought a harness from stockgp, he used to make them based on which cluster you had. For me, I put in a 90 Cluster ( I wanted year specific) so mine has Oil, Temp. I had to replace both sensors, both work fine. However, before I knew I needed the adapter harness, I tried plugging and playing, and the same thing you've described happened. It has something to do with wires from a base cluster not being in the same spot as the UB3 cluster. Someone else will chime in, I have no idea how to correct your problem, but I know that's what the issue is. I am not a wiring guy! Quote Link to comment Share on other sites More sharing options...
White93z34 Posted March 1, 2012 Report Share Posted March 1, 2012 almost sounds like a bad sensor to me, this is asuming you did the rewiring/repinning from base to full gauge cluster right. Quote Link to comment Share on other sites More sharing options...
base93lumina Posted March 1, 2012 Author Report Share Posted March 1, 2012 I followed the instructions on this site to the tee! Before, with the "light" sender, it read full cold. Now with the "gauge" sender, it reads full hot in a matter of a minute. Unless i got air in the system...but after a couple days of driving you would think that air pocket would subside??? Is the teflon tape blocking the signal perhaps? Quote Link to comment Share on other sites More sharing options...
White93z34 Posted March 1, 2012 Report Share Posted March 1, 2012 teflon tape would not bother anything, dont worry about that. sounds like you might have a bad sender out of the box. perhaps worth checking that no wires are chafed or pinched. Quote Link to comment Share on other sites More sharing options...
3pt1lumina Posted March 1, 2012 Report Share Posted March 1, 2012 I went with an AC Delco Sender.... I'd try a new one then. Quote Link to comment Share on other sites More sharing options...
base93lumina Posted March 2, 2012 Author Report Share Posted March 2, 2012 okay will do thanks guys Quote Link to comment Share on other sites More sharing options...
base93lumina Posted March 15, 2012 Author Report Share Posted March 15, 2012 So i got to the bottom of this. Turns out the brand new sender was bad. Rather than screw with it, i decided to get a coolant temp sender for an 01 Lumina and just lengthen the wire to the connector. Using the 3-wire sender seems to have been a great idea as its working perfectly now! Thanks guys! Quote Link to comment Share on other sites More sharing options...
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