M14x1.5mm

 

Holy crap that was a fast response. Thanks

 

NP. I keep a list of bolt sizes and their thread pitch so it's easy to call up on.

 

can u pm a copy of that list

 

Sure thing. When I get on my home comp tonight I'll PM you.

 

Now another question. When i look for a fitting of that size all i can come up with is drain plug bolts and nothing on plugs for the freaking thing. Anybody know of a fitting that will work.

 

Sorry to bump an old thread up but, i have a question. Can I just unscrew that valve on the oil pan and leave it as is if I'm deleting the AFM? Just trying to clarify what I just read.
Thanks

 

The valve has to be replaced with a plug. If you remove the valve without capping it you will have a major oil leak lol.

 

Haha! I see it now. I found this thread shortly after... LS3 oilpan relief valve

 

i have a 2007 yukon denali 6.2 liter , i keep getting low oil pressure , i replaced oil pressure sensor , oil pick up tube and o ring, new oil pump new oil and filter truck runs good 40 pounds of oil pressure on start up when cold. at operating temp oil pressure starts to drop i put on mechanical gage at the oil pressure sensor oil pressure is about 9psi HELP!!!!