Possible turbo issue?

335iNavyGuy · 06-12-2013, 09:43 PM

So i was driving kinda playing around today, and i noticed i lost a bit of power, not a lot but a decent amount. loud whooshing sound coming from BOV while under pressure and using the turbos. sounded kinda like my wastegate sticking open? I know thats a common problem but is that what it sounds like?

TenshiWingusu · 06-12-2013, 11:25 PM

Quote:

Originally Posted by 335iNavyGuy

So i was driving kinda playing around today, and i noticed i lost a bit of power, not a lot but a decent amount. loud whooshing sound coming from BOV while under pressure and using the turbos. sounded kinda like my wastegate sticking open? I know thats a common problem but is that what it sounds like?

No codes? If its coming from the BOV one would assume you are leaking from the valve, check that out and the vac lines. Stuck open wastegates don't build much boost so I don't think that's it.

335iNavyGuy · 06-12-2013, 11:35 PM

Quote:

Originally Posted by TenshiWingusu

No codes? If its coming from the BOV one would assume you are leaking from the valve, check that out and the vac lines. Stuck open wastegates don't build much boost so I don't think that's it.

I think just one was sticking open, and there wasnt boost releasing quickly, it was a constant blowing noise and no leaks. but only blowing when when under acceleration

TenshiWingusu · 06-12-2013, 11:44 PM

Quote:

Originally Posted by 335iNavyGuy

I think just one was sticking open, and there wasnt boost releasing quickly, it was a constant blowing noise and no leaks. but only blowing when when under acceleration

With a cold engine you can get your hand down to check the rear WGA, cant get to the front though.... To check them both I'd pick up a cheap vac hand pump and hook it up to each WGA line. Theres a DIY somewhere about checking that system but it will clearly show WGA failure or any sticking. Thats really strange otherwise, any sort of boost leaking should throw a code... and a stuck WG would still probably give you an underboost code...

335iNavyGuy · 06-12-2013, 11:57 PM

Thankfully i already bought two brand new turbos so its not that big of a deal. But thanks for the info

Jeff@TopGearSolutions · 06-13-2013, 12:41 AM

If you are not meeting boost target for more then 3 seconds you will throw a 30FF code.

06-12-2013, 09:43 PM	#1
335iNavyGuy Colonel 216 Rep 2,349 Posts Drives: 07 N54 E92 Join Date: May 2013 Location: San Diego CA iTrader: (3)	Possible turbo issue? So i was driving kinda playing around today, and i noticed i lost a bit of power, not a lot but a decent amount. loud whooshing sound coming from BOV while under pressure and using the turbos. sounded kinda like my wastegate sticking open? I know thats a common problem but is that what it sounds like? __________________ 07 E92 Jb4-G5 - Sport Exhaust - Titek BOV BBS Lm reps - AFE dual cone intake
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06-12-2013, 11:57 PM	#5
335iNavyGuy Colonel 216 Rep 2,349 Posts Drives: 07 N54 E92 Join Date: May 2013 Location: San Diego CA iTrader: (3)	Thankfully i already bought two brand new turbos so its not that big of a deal. But thanks for the info __________________ 07 E92 Jb4-G5 - Sport Exhaust - Titek BOV BBS Lm reps - AFE dual cone intake
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06-13-2013, 12:41 AM	#6
Jeff@TopGearSolutions 3461 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	If you are not meeting boost target for more then 3 seconds you will throw a 30FF code.
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