[HO455]

Originally Posted by custom10nut

Well, after researchIng the sending units that are supposed to be the “Right” one, I ordered one from Auto Wire (on the Suggestion of another board member), and when I opened it, I noticed that it has no Teflon thread sealant on it like the last two that I’ve tried.
I read in one response, that the sender shouldn’t have any sealer on it in order to work correctly, and this makes perfect sense. What does not make sense is why would Delco and other companies put the Teflon on their senders?
I haven’t had a chance to put my new sender in yet, but I’ll let y’all know how it works out.

Please let's put the Teflon Tape myth to bed. I have installed hundreds of senders in my career and never once did I find one that worked incorrectly due to pipe thread sealant. And as further proof please go to my earlier post in this thread (#28) and follow the link to the post I called out there is a pdf. That PDF is from a gentlemen who besides plotting resistance readings on several brands of senders to show how the different manufacturers senders vary in resistance, he also debunked the teflon tape/pipe sealant myth.