Pressure testing friends A4, cant find the massive leak....
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Pressure testing friends A4, cant find the massive leak....
So I am trying to help a friend out whose A4 has been running like crap. Basically it has no low end power and only builds a bit of boost higher up in the RPMS...going up a hill it can barely get out of first gear. I can hear the turbo trying to spool but usually only gets up to like 3-4psi. Today I hooked up my DIY pressure tester to try to find leaks. Well I found the problem...my compressor wont even pressurize the system as quickly as the leak drains the air. So I cant listen for a leak because the compressor is on and since it doesnt pressurize I cant listen for the leak after I turn the compressor off. I have checked all the main lines and hoses in the intake system and havent found any obvious problems. To me it almost feels like when I had my IC hose come off my FMIC and my car lost power. Any thoughts or ideas on how to track down the problem would be greatly appreciated. Thanks.
#3
Pressurize an air tank, then check it.
Old propane tanks work great. Very cheap to fit a little schrader valve block to them.
I don't know how feasible or good for the car it would be buuuutt....you *could* fill a tank with smoke/dye/CO2...etc...something you could "see" coming out of the affected area. Maybe some UV dye like they use for A/C systems with a cheap pen light/goggles. I'm sure something could be rigged up.
I don't know how feasible or good for the car it would be buuuutt....you *could* fill a tank with smoke/dye/CO2...etc...something you could "see" coming out of the affected area. Maybe some UV dye like they use for A/C systems with a cheap pen light/goggles. I'm sure something could be rigged up.
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