2000 GTP issue with Coolant Temp Sensor

[tblake]

Hi Guys!

Ok, as most of you know I replaced my LIM gaskets and at the same time installed a ported and polished Lower Intake Manifold.

Well, the P&P LIM came bare, so I had to install my own ECT sensor on it from the old LIM. So I did, and at the same time I cleaned the threads and applied some silicone RTV.

Well, a month or so went by and I peered down along my LIM gaskets to check for leaks. I saw some coolant on the drivers side. Not some, but a lot. It was dripping from the ECT sensor threads.

So, since its in such a crappy spot to get to after the LIM is installed that I decided to just replace it. I bought one from o'reilley's for 18.00, covered the threads in Red High Temp RTV, and put it in.

It seemed good for a week or so, and then yesterday I took a rather long trip and when the car cooled, I decided to stick my hand down there and check for coolant.

Well, you guessed it, its not leaking nearly as bad, but it is still damp down there. I think my problem is that the coolan keeps dripping from around the sensor as I thread the new one in. Causing the RTV to not set and cure properly and causing a leak.

So, does anyone have any idea as to how I can get this to seal up? Whats the word on teflon tape, is that a no no?

Anyone with any ideas?

Thanks Guys!

[GTP Dad]

Teflon tape is ok just leave some of the threads exposed so that it properly grounds against the mainfold. That should seal the leak for you.

[tblake]

Sounds Good! Thank You Lynn!

Or else I was thinking about taking it out, cleaning it up, applying RTV and letting the RTV sit for an hour or so before I screw it into the manifold. That might help it not be so susseptible to the dripping coolant.