My N54 sounds like a subaru!!!

Chrisred · 10-02-2011, 12:04 PM

Lol. Been getting misfires at cold starts. Misfires on cyl 2 & 3. Car also shakes violently on cold starts then shuts off. When I start to drive it sounds like a Subaru with exhaust. Then goes away. What could be the cause of this??

I'm changing two injectors and spark plugs next week.

thebigragu99 · 10-02-2011, 12:50 PM

Coil paks

Chrisred · 10-02-2011, 01:19 PM

Quote:

Originally Posted by thebigragu99

Coil paks

Shit. Seems I gotta replace everything in there....

thebigragu99 · 10-02-2011, 01:39 PM

Quote:

Originally Posted by Chrisred

Shit. Seems I gotta replace everything in there....

Test them by pulling by one at a time to find the bad one..

E90SoFlo · 10-02-2011, 02:36 PM

Quote:

Originally Posted by thebigragu99

Test them by pulling by one at a time to find the bad one..

Its 2/3 he said

Retrospect · 10-02-2011, 04:05 PM

Take a video.. I wanna hear it lol.

Chrisred · 10-02-2011, 04:17 PM

Quote:

Originally Posted by Retrospect

Take a video.. I wanna hear it lol.

Lol. It does sound good....

scottp999 · 10-02-2011, 05:01 PM

Swap the coils to other cylinders. If the misfire follows the coils, you know that's the problem.

stratplaya06 · 10-02-2011, 05:17 PM

Would it go away if it was a coil problem?

I had exactly the same problem as you describe, rough idling and rough running for a little and then everything was okay after that. Turned out to be a bad fuel injector, so they replaced all of them as well as the spark plugs under warranty.

Jeff@TopGearSolutions · 10-02-2011, 05:36 PM

You should replace atleast 3 injectors if not all 6 at the sametime.

Same goes for coils and spark plugs.

JStang · 10-03-2011, 08:47 AM

I had the same thing happen a month or so again. SES light came on and the car was misfiring and sounded exactly like a Subaru. Dealer replaced an ignition coil and it has been fine ever since.

MattsGray335 · 10-03-2011, 09:49 AM

Had the same issue, dealer replaced all 6 coil packs and 6 spark plugs.

10-02-2011, 12:04 PM	#1
Chrisred Captain 63 Rep 788 Posts Drives: BMW 335xi coupe Join Date: Jan 2010 Location: Montreal, Canada iTrader: (0)	My N54 sounds like a subaru!!! Lol. Been getting misfires at cold starts. Misfires on cyl 2 & 3. Car also shakes violently on cold starts then shuts off. When I start to drive it sounds like a Subaru with exhaust. Then goes away. What could be the cause of this?? I'm changing two injectors and spark plugs next week. __________________ JB4 Trebila tuned cp-e IC AMS exhaust BMS DCI AR DP's METH RB TURBO 19" VMR VB3 Stoptech BBK TC KLINE VORSHLAG SPEC STG 3 OSS design
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10-02-2011, 12:50 PM	#2
thebigragu99 Banned 47 Rep 828 Posts Drives: 135 tuorbbo Join Date: Aug 2011 Location: nyc iTrader: (1)	Coil paks
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10-02-2011, 04:05 PM	#6
Retrospect Enlisted Member 0 Rep 49 Posts Drives: None Join Date: Jul 2011 Location: LoCali iTrader: (0)	Take a video.. I wanna hear it lol.
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10-02-2011, 05:01 PM	#8
scottp999 Brigadier General 133 Rep 4,764 Posts Drives: 4runner SR5 Join Date: Mar 2007 Location: MD iTrader: (2) Garage List 2007 BMW 335 [9.00]	Swap the coils to other cylinders. If the misfire follows the coils, you know that's the problem.
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10-02-2011, 05:17 PM	#9
stratplaya06 Captain 46 Rep 967 Posts Drives: 2008 E92 335xi-SOLD 5.0 Miata Join Date: May 2008 Location: Maryland iTrader: (10)	Would it go away if it was a coil problem? I had exactly the same problem as you describe, rough idling and rough running for a little and then everything was okay after that. Turned out to be a bad fuel injector, so they replaced all of them as well as the spark plugs under warranty. __________________ \| PROcede Rev3 \| Vishnu Meth \| DCI \| BMW Perf. Exhaust \| AR Coated/Catless \| CP-E FMIC \| Quaife \|
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10-02-2011, 05:36 PM	#10
Jeff@TopGearSolutions 3442 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	You should replace atleast 3 injectors if not all 6 at the sametime. Same goes for coils and spark plugs.
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10-03-2011, 08:47 AM	#11
JStang Brigadier General 563 Rep 3,625 Posts Drives: FDB M3 CS Join Date: Dec 2010 Location: St. Petersburg, FL iTrader: (9)	I had the same thing happen a month or so again. SES light came on and the car was misfiring and sounded exactly like a Subaru. Dealer replaced an ignition coil and it has been fine ever since.
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10-03-2011, 09:49 AM	#12
MattsGray335 Private First Class 10 Rep 161 Posts Drives: 2007 335i Coupe 6spd man Join Date: Nov 2010 Location: Dallas, Texas iTrader: (3)	Had the same issue, dealer replaced all 6 coil packs and 6 spark plugs.
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