CEL with whooshing sound like air is escaping

MFM5 · 03-12-2020, 07:26 PM

CEL came on after hard acceleration. Then a whooshing sound like air is escaping when accelerating. Don't have a scan tool. Feels like a cylinder may be down. Only mod is JB4. Anyone experience something similar?

Simple5 · 03-13-2020, 02:45 AM

Quote:

Originally Posted by MFM5

CEL came on after hard acceleration. Then a whooshing sound like air is escaping when accelerating. Don't have a scan tool. Feels like a cylinder may be down. Only mod is JB4. Anyone experience something similar?

Boost leak most likely. Tuning a car usually reveals problems a lot sooner..

Craze · 03-13-2020, 03:35 AM

Maybe charge pipe?

technician117 · 03-13-2020, 05:19 AM

Definitely broke something. Check all of the charge piping. Do you have aftermarket parts or all stock?

MFM5 · 03-13-2020, 06:44 AM

Thanks for offering possible causes. No mods other than tune.

Lennon997 · 03-13-2020, 02:33 PM

sounds like you have a leak, would check any boost hoses first, the visible ones, you can do a pressure test also if your so inclined and see exactly where its escaping

03-12-2020, 07:26 PM	#1
MFM5 Private First Class 86 Rep 171 Posts Drives: 2015 M5 CP Join Date: Jun 2012 Location: DFW iTrader: (2)	CEL with whooshing sound like air is escaping CEL came on after hard acceleration. Then a whooshing sound like air is escaping when accelerating. Don't have a scan tool. Feels like a cylinder may be down. Only mod is JB4. Anyone experience something similar? __________________ '15 Monte Carlo Blue M5 (daily) \| '09 GT Silver 997 TT Cab 6-speed '14 Agate 991 C4S -- sold \| '15 Shark Gray Z06 -- wrecked '08 Silverstone M3 -- sold \| '06 Artic Silver 997 C2S Cab -- sold '09 Black Challenger SRT -- sold \| '98 Artic Silver M3 -- sold
	Appreciate 0 Tweet Quote

03-13-2020, 03:35 AM	#3
Craze Captain 161 Rep 687 Posts Drives: M5 E60, M5 F10, X5 50i Join Date: Oct 2017 Location: Australia iTrader: (0)	Maybe charge pipe?
	Appreciate 0 Quote

03-13-2020, 05:19 AM	#4
technician117 Captain 251 Rep 606 Posts Drives: 2000 M5, 2001 M5, 2013 M5 6MT Join Date: Jul 2018 Location: Buffalo iTrader: (1) Garage List 1990 BMW M5 [0.00] 2000 BMW M5 [0.00] 2013 BMW M5 [0.00]	Definitely broke something. Check all of the charge piping. Do you have aftermarket parts or all stock?
	Appreciate 0 Quote

03-13-2020, 06:44 AM	#5
MFM5 Private First Class 86 Rep 171 Posts Drives: 2015 M5 CP Join Date: Jun 2012 Location: DFW iTrader: (2)	Thanks for offering possible causes. No mods other than tune.
	Appreciate 0 Quote

03-13-2020, 02:33 PM	#6
Lennon997 Private First Class 102 Rep 181 Posts Drives: f10 m5 Join Date: Mar 2016 Location: NY iTrader: (1)	sounds like you have a leak, would check any boost hoses first, the visible ones, you can do a pressure test also if your so inclined and see exactly where its escaping
	Appreciate 0 Quote