Thread: 3800 Series II non-SC runs hot after replacing lower intake gaskets and upper intake

Originally Posted by The Guz

I'm trying to remember what we did no my brothers 03. It was so long ago when we did the LIM. But I believe we taped the threaded part of the ECT and that fixed any issues he had with his sensor. I forget what brand he has. Perhaps something else you can try.

"The Guz" can you elaborate on this? I'm not sure how taping the threads of the ECT would help the situation. I assume you are talking about using something like plumbing thread tape...??? The ECT that I purchased already had thread compound applied on the threads out of the box...

To clarify: I don't have issues with the ECT leaking. I suspect that the new Duralast part that I have (which I bought a week ago, and have already replaced once since then) is producing a false reading causing an inaccurate needle reading on the instrument cluster, as well as causing the electric cooling fans to engage at 210-ish instead of the 185-ish temps that I have been used to seeing throughout the years.

Thanks.