Blown hose?? No boost at all

dslrmoon · 11-21-2011, 03:28 PM

my cars running jb4 map5 (autotune) with catless dp, injen intake, ****** charge pipe + greddy type s bov.

I was pulling really hard on 3rd gear about 6000rpm and I heard some kind of hose popping off sound from the engine bay. It sounded like compressed air leaking through a hole ( pshhhhhhhhhhhh sound). After that I get no boost at all. I checked my intake with hose n line connections, charge pipe and blow off valve, valve lines and replaced diverter valve to other one because I thought either one of those aftermarket parts were blown. But It would still give me no boost.

Whenever I drive, even on the 3~4000rpm, I hear lots of air leaking( or extra loud intake noise) and no boost. also there's no blow off valve sound when i realease pedal. Is there anyway that i could check what hose is wrong with my car?

I'm not going to take it to dealership because the first place i took it when it happened was stealership and they charged $155 for only checking it, but the result they found was "my car has aftermarket parts".

kevin@bavarianx · 11-21-2011, 03:56 PM

Did you take out the charge pipe to inspect it? Sounds to me like a boost leak. It happened to a customer where something popped off it happened to be the diverter valve.

caliguy562 · 11-21-2011, 06:38 PM

did you check pipes going to intercooler?

11-21-2011, 03:28 PM	#1
dslrmoon Private First Class 9 Rep 117 Posts Drives: e92 euro black Join Date: Nov 2010 Location: pasadena iTrader: (4)	Blown hose?? No boost at all my cars running jb4 map5 (autotune) with catless dp, injen intake, ****** charge pipe + greddy type s bov. I was pulling really hard on 3rd gear about 6000rpm and I heard some kind of hose popping off sound from the engine bay. It sounded like compressed air leaking through a hole ( pshhhhhhhhhhhh sound). After that I get no boost at all. I checked my intake with hose n line connections, charge pipe and blow off valve, valve lines and replaced diverter valve to other one because I thought either one of those aftermarket parts were blown. But It would still give me no boost. Whenever I drive, even on the 3~4000rpm, I hear lots of air leaking( or extra loud intake noise) and no boost. also there's no blow off valve sound when i realease pedal. Is there anyway that i could check what hose is wrong with my car? I'm not going to take it to dealership because the first place i took it when it happened was stealership and they charged $155 for only checking it, but the result they found was "my car has aftermarket parts".
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11-21-2011, 03:56 PM	#2
kevin@bavarianx Banned 33 Rep 812 Posts Drives: E36 M3 Join Date: Jul 2010 Location: Brea, CA iTrader: (3)	Did you take out the charge pipe to inspect it? Sounds to me like a boost leak. It happened to a customer where something popped off it happened to be the diverter valve.
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11-21-2011, 06:38 PM	#3
caliguy562 Lieutenant 8 Rep 476 Posts Drives: E92 335i Join Date: Dec 2007 Location: garaged somewhere in soCal iTrader: (3)	did you check pipes going to intercooler?
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