MrHappy

I'm using AWE's pressure tester, and even at <5psi, I hear a hissing sound from around the where the throttle body meets my APR bipipe. (I also hear a gurgling sound; I assume that's air getting past the throttle body and venting through oil in the crankcase).

Is it normal to hear that hissing at the throttle body? Could that just be air getting past the trottle plate, or is it something else? If it's not normal, I'll try removing the APR bipipe and replacing it with the OEM plumbing to see if that gets rid of the hissing. :-\

Thanks!

Kitch

It's just the air seeping past the throtlle plate, no worries

mpwolf

you have a leak, otherwise, it is just air rushing past the throttle plate. You will hear some hissing around the throttle body and hear a gurgling sound, you will also hear a hissing around the oil filler cap, that is normal. I'd be very surprised if there was an air leak at the Bi-Pipe/Throttle Body connection.

MrHappy

Great, thanks!