I have a boost leak somewhere around my TB but I cant seem to locate it. Has anyone else had this issue? Where exactly was the leak?

 

i heard that its normal to leak a little from the TB.

 

I doubt it.

 

https://www.evolutionm.net/forums/sh...d.php?t=148717

 

It's not normal. Your seals on your throttlebody are bad. Its a PITA to fix, the easiest way is to find another throttlebody to replace it with.

 

Yea my friends car is running real low on power and we did a boost leak and found that it leaked quite a bit from the TB. When we figure out more we will post what we find.

Dan

 

**** Luis that's not good news.

I may come up and have you look it over before I order a new one.

 

Any other opinions?

 

Good luck as this is no easy fix. You have to take the whole throttlebody apart and pray it doesnt stick with new orings. I have attempted this on several cars with some success. Garrett i got you taken care off : ).

 

how do you know its at the throttle body???

 

I ran a boost leak test, and it started hissing near the TB, and eventually it turned into a really loud high pitched whine.

 

You can hear it pretty easy, you can also mis some soap and water in a spray bottle and spray it to see where it bubbles at .

 

Luis, is there any other possibility or is it definitely the issue you're thinking of?

 

Bump.

 

I would try to avoid using o-rings on the throttle body shaft if possible. There's a potential of the throttle body getting stuck, which can be pretty dangerous. I've used these seals on my old GSX w/ good success. They may or may not fit the EVO.

http://www.machv.com/throtbodseal.html