Will pulling one properly drain the block or do both need to be pulled? the one on the DS seems to be a pain


TIA

Both sides, should be a 22 mm socket.

yup, cant do it right without both sides out.
Thanks


when I go to put them back in anything I should be putting on the threads?
Anti-seize or otherwise?

No sealant other than what GM put on it. NO teflon tape. Torque to spec.

by chance do you know what it was that GM used? looks red.

Torque spec I believe is 15 foot lbs

It's their own putty stuff... you can use red threadlock, IIRC... I will confirm the torque setting.

red thread lock is the kind that requires heat to break loose I thought. Would blue work as well or should I pick up some Permatex.

Also, I read up that the KS grounds itself to the block, so do you think I should only apply to last 1/2 of the threads only?

that's what GM does, IIRC... the last half only.

It's some kinda thread lock/sealer...

As for red requiring heat to remove? Never had to do to that.

As far as I've always been taught that is the difference between red and blue loc tite.

Blue is used when wrench pressure is desired to break the bond. While red's properties are much stronger requiring the need for heat to be applied in order to break it.

Basically, if it needs to be serviced use blue
If it permanent use red

I would strongly recommend not using loctite! The red stuff on there is a thread sealant but from what I have read you are fine just leaving what's on there. Does the knock sensor have an o-ring?

If you are reusing the same KS, I think a small amount of high temp silicone should be good.

I've pulled mine a couple times and never applied any additional sealant to them.

Geeze, read the book.

The sealer has nothing to do with locktite, nor the color.

It's electrically conductive.

Don't wipe it off, just reuse it. It will seal, the threads are pipe threads.

Do you think if I had "the book" I'd be asking these questions?

Seriously, your opening line in your post is the reason I don't frequent forums anymore. Up until now everyone here has been more than helpful and accommodating with what some may deem as "dumb" questions on my part. But I do appreciate your help, if I sift through what appears to be your perturbed tone I gather that:

The KS is coated in a thread sealer and not any form of thread lock. The sealer is conductive and no one knows exactly what GM uses.

Thanks Bill



On that note, I'm going to get some Permatex thread SEALER in whatever color they have and put in on the last 1/3 of the KS.