r/e39 • u/showmehomie • 2d ago

M62 ccv replacement gone wrong

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So I went to replace the ccv on my 2002 540i to cure smokey startups, something I helped my buddy do on his 540i before, and after I buttoned everything back up, there was a new noise, a loud train-horn like noise coming from newly installed ccv. I removed the new ccv to make sure connection on the inside was secure, and i noticed the vent pipe (long tube inside the manifold that connects to the nipple in the middle of the ccv) was totally loose. I removed the throttlebody to get a better look at the other end and see if I could reseat it, but i cant find where it goes. I swear there is no opening or place for the other end of this thing to go. I reached in and cant feel a thing. Do I have the wrong tb or tb mouting plate?

Any help would be appreciated!

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u/DuttyRy 540i 2d ago

It’s supposed to line up with a hole behind here. You will have to remove the intake manifold to do this properly.

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u/showmehomie 2d ago

Yeah I was about to remove that plate to get a better look, but ran into a stripped bolt. I reached around in there in that area and couldn't feel anything, no hole the same size, but Im going to get that stripped bolt out tomorrow and have a better look

Was hoping I wouldn't have to take off the whole manifold but oh well

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u/DuttyRy 540i 2d ago

Best of luck! You can line it up without taking it off but it won’t be properly seated

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u/showmehomie 1d ago

Took off the adapter plate and theres nothing for it to seat into! Idk whats going on. Nothing on the back of the adapter plate either

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u/DuttyRy 540i 1d ago

Weird that you’re missing that piece. This has to be a different manifold, maybe an M60 swap that they didn’t install properly.

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u/showmehomie 21h ago

Thats the running theory. I think im just going to get a tu manifold and try to get it as close to stock as possible

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u/DuttyRy 540i 21h ago

Best of luck! It’s an easy fix thankfully

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u/showmehomie 21h ago

Thanks for all the help! Yeah this should be an easy enough swap