Very strange smell. Stumped

[Rawze]

(12-23-2022 )Grumpyjoewv Wrote:  ...

I still have one very minor leak at the small tube for the exhaust pressure sensor. Gonna stop in Knoxville and pick one up. Hopefully that takes care of the exhaust leaks. Thanks again guys

Some advice on removing that old tiny tube that supplies the exhaust manifold pressure sensor. The fitting tends to round out and get stuck in the manifold for a lot of people due to exhaust heat exposure.


First... don't even try to use an open end wrench on the exhaust manifold side fitting. You will just round out the fitting. Have a new replacement tube ready and just cut the tube part itself off at the fitting so that you can use a 6-sided socket on it. Do not use a 12-sided socket on it, as this is just as bad as using the open end of a wrench.

If it does not want to move fairly easily.. don't try to force it.. heat the whole fitting up until it is glowing a dull red with a small propane or map-gas hand-torch bottle, takes about 5+ minutes to get it nice and hot, and then work it as it cools. -= It will come out without destroying or stripping it, even if it is real stubborn.

When you install the new one .. use some copper (not aluminum), or other higher-temp rated anti-sieze on the threads of the fitting to prevent souch troubles in the future.