RTV on intake manifold gaskets. Yay or nay?
I'm going to do the intake manifold gaskets on my 03 Yukon in the next few days to hopefully get rid of the pesky P0171 and P0174 codes, rough idle when cold and other symptoms that have lead me to believe they are the issue.
Shouldn't be a biggie and there seem to be plenty of good DIYs for the job, if needed. Now, the question I have is that should I use RTV on the gaskets or just leave them as is? Some DIYs say you should whereas some say nothing. So, I guess I could go either way, right? If I use it, should I use it on both sides of the gasket (heads and the intake) or just one? No huge amounts, of course, just a small bead, I guess. Thanks! |
WE never add RTV on ls motors at the shop. Just check to make sure the manifold isnt warped, and get a new gasket for it.
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Nay..
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Negative ghost rider... Step away from the rtv
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Get the super seal felpro gaskets from napa if you're that worried. They are like $70 but worth the piece of mind. Proper torque procedure is critical too
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No RTV.
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Dont do it.
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No RTV. Just use new gaskets, make sure both surfaces are clean and straight, then do at least 3x torque passes starting from the center. I did 10x torque passes on my LSXRT, and I felt it get a little snugger on each pass. Zero leaks and trouble free :)
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OK. I guess the decision is pretty clear. Thanks!
Originally Posted by black954
(Post 5191246)
Get the super seal felpro gaskets from napa if you're that worried. They are like $70 but worth the piece of mind. Proper torque procedure is critical too
Well..., at least I hope it will :eyes: |
Originally Posted by Texfinn
(Post 5191265)
OK. I guess the decision is pretty clear. Thanks!
I bought Fel-Pro MS98016T set. Not from Napa, but off Ebay for 53 bucks. No sure if that's what you are referring to. I'm pretty sure that'll take care of the problem. Well..., at least I hope it will :eyes: |
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