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View Full Version : Can't Locate Boost Leak HELP PLEASE (PICS)



S-lime
10-22-2015, 12:02 AM
Only boosting to about 4/5 PSI so I did a boost leak test. The leak is so bad that all the pressure in the system is leaked out within seconds. I found the general area where the leak is. It's between the intake manifold and the firewall but I can't pin-point it because of all the tubing and stuff crammed into that one area. I tightened the 3 hose clamps on that black T thing (green arrows) because it sounded like that was leaking). I also sprayed the entire area with soapy water with no luck. It sounds like it's coming from the area circled in red. I don't even know what lines contain boost in this area. What should I check? Help please!

https://scontent-sea1-1.xx.fbcdn.net/hphotos-xap1/v/t34.0-12/804658_10153301275002239_1683904534_n.jpg?oh=e0a62 7769a57f7a0f260dcf0846a946f&oe=562B3C79




https://scontent-sea1-1.xx.fbcdn.net/hphotos-xal1/v/t34.0-12/11774684_10153301283927239_2138561175_n.jpg?oh=f43 1d7179fbfab091d0db89370d98b6e&oe=562A3B10

The Overclocker
10-22-2015, 07:53 AM
i don't get how you cant locate where the leak is from if you pressure test it !?

you're the only one who can see that .. here from are computer we could advise you things but for you're precise leak trouble .. you're the only one that can spot it

use a bigger compressor if you have trouble at 10-15 psi on a regulator


i normally smoke my vaporizer on the intake of my compressor so when i do i leak down test i have air + smoke at the same time so i could say thats my homemade smoke tester hehe ! and works amazingly !

S-lime
10-22-2015, 02:28 PM
Was just hoping someone would know a common area I could check. Does that black plastic t with the three hose clamps even hold boost?

salz2135
10-22-2015, 05:10 PM
No, the 3 way manifold you circled should not see boost if your crankcase ventilation system is working correctly.

Believer
10-23-2015, 08:50 AM
Was just hoping someone would know a common area I could check. Does that black plastic t with the three hose clamps even hold boost?

If those lines are seeing boost the PCV valve, which is located inside the large rubber T underneath the intake manifold, is failed allowing boost into your crankcase.