Indy shop thinks my engine has blown up. PLEASE HELP!

e'sbimmer · 04-15-2015, 01:00 PM

I have a 2006 330i with k&n drop in/charcoal delete and muffler delete. Thats it.

Yesterday driving casually my car stalled out and I pulled over. I started it back up and it rode very rough and the whole car shook.

Got it toed and my indy shop thinks I need a new motor. He said the vanos could need replacing and the rough idle could have caused engine damage inside. He didnt even know if my cpu was stock or tuned(its stock) and he said it could have been because my muffler delete caused bad back pressure.

Is this possible??
Thanks

SDemetris · 04-15-2015, 01:02 PM

They have no idea what theyre talking about. Sounds like you had a spark plug or ignition coil go bad.. easy fix

tuphdc · 04-15-2015, 01:09 PM

Quote:

Originally Posted by SDemetris

They have no idea what theyre talking about. Sounds like you had a spark plug or ignition coil go bad.. easy fix

+1

shadow191 · 04-15-2015, 01:14 PM

Find a new shop; this one shouldn't be working on cars period with that level of ignorance.

Back pressure isn't even a real thing...and a muffler delete wouldn't impact it even if it was.

A rough idle can't damage an engine, a rough idle is only a symptom of what is wrong such as bad injector or failed ignition coil.

Delta0311 · 04-15-2015, 01:17 PM

Needs a new motor? Nice way of him saying, "hey i think we got a real sucker here that we can take for a few grand". Start with the simplest fix, replace spark plugs and coils.

bimmerquick43321 · 04-15-2015, 01:19 PM

Quote:

Originally Posted by e'sbimmer

He said the vanos could need replacing and the rough idle could have caused engine damage inside. He didnt even know if my cpu was stock or tuned(its stock) and he said it could have been because my muffler delete caused bad back pressure.

Is this possible??
Thanks

Don't know where to start there, but big lol on the shop haha, either go to another garage as suggested, or try to investigate by yourself, a good start is to look if this is related to sparks/ignition as it's usually the case (there are lots of threads about it). Good luck

chris82 · 04-15-2015, 01:53 PM

Holy god, what kind of shop is this? A gas station? Blown motor caused by backpressure?

e'sbimmer · 04-15-2015, 01:57 PM

Quote:

Originally Posted by shadow191

Find a new shop; this one shouldn't be working on cars period with that level of ignorance.

Back pressure isn't even a real thing...and a muffler delete wouldn't impact it even if it was.

A rough idle can't damage an engine, a rough idle is only a symptom of what is wrong such as bad injector or failed ignition coil.

Ok thanks! I got scared there for a minute. Since this is my daily driver I'll have to take it to a shop. I'll keep looking around.

Taskmaster · 04-15-2015, 02:44 PM

Quote:

Originally Posted by SDemetris

They have no idea what theyre talking about. Sounds like you had a spark plug or ignition coil go bad.. easy fix

Where have you been?

TheSt|G · 04-15-2015, 02:56 PM

Quote:

Originally Posted by shadow191

Find a new shop; this one shouldn't be working on cars period with that level of ignorance.

Back pressure isn't even a real thing...and a muffler delete wouldn't impact it even if it was.

A rough idle can't damage an engine, a rough idle is only a symptom of what is wrong such as bad injector or failed ignition coil.

Back pressure is a thing, but it's just going to reduce power output, not destroy an engine.

OP, run the hell away from this "shop".

Needbmwpartzz · 04-15-2015, 03:01 PM

Quote:

Originally Posted by Delta0311

Needs a new motor? Nice way of him saying, "hey i think we got a real sucker here that we can take for a few grand". Start with the simplest fix, replace spark plugs and coils.

Yup.....this guy is looking at you like a big fat wallet he found on the ground with Benjamin's bulging out.........and you are nowhere to be found!
I would get a second opinion.

e'sbimmer · 04-15-2015, 03:18 PM

Quote:

Originally Posted by TheAxiom

Where have you been?

This shop is Clarks Foriegn Car in Little Rock Arkansas.

Mike. · 04-15-2015, 03:25 PM

go to the regional forums and ask for a better shop!

shadow191 · 04-15-2015, 03:54 PM

When people talk about back pressure, they're usually referring to exhaust scavenging which isn't causing pressure.

The only way to have actual back pressure would be to clog a cat or block the exhaust in some other way.

So I guess it's a real thing, but it's not what people think it is.

Quote:

Originally Posted by TheSt|G

Back pressure is a thing, but it's just going to reduce power output, not destroy an engine.

OP, run the hell away from this "shop".

hassmaschine · 04-15-2015, 04:23 PM

either way whoever diagnosed the OP's engine needs a new career.

Three_thirty_I · 04-15-2015, 06:02 PM

Definitely take the car to a different place and get a second opinion. Does not sound right at all.

631twentyeighteye · 04-15-2015, 07:40 PM

What's the name of the shop? So we can warn others away from it LOL.

Probably plugs/coilpack/injectors.

pinoye90 · 04-16-2015, 12:03 AM

Please do everyone a favor once car is fixed. Report the shop to bbb, yelp review, Google review the crap out of that shop... Fucking D-bags I hate mechanics/shops like that...

W37V · 04-16-2015, 06:51 AM

Six new plugs and coils (oem) from Amazon are about 200$. It takes up to 30 min for swap.

Delta0311 · 04-16-2015, 07:31 AM

Quote:

Originally Posted by W37V

Six new plugs and coils (oem) from Amazon are about 200$. It takes up to 30 min for swap.

Yup.. Pretty simple job on a N52, not much to take apart.

mmmnot · 04-16-2015, 08:54 AM

OP - any updates?

TheSt|G · 04-16-2015, 09:15 AM

Quote:

Originally Posted by shadow191

When people talk about back pressure, they're usually referring to exhaust scavenging which isn't causing pressure.

The only way to have actual back pressure would be to clog a cat or block the exhaust in some other way.

So I guess it's a real thing, but it's not what people think it is.

Back pressure and scavenging are two different things, and there are plenty more ways to generate it beyond a blockage.

04-15-2015, 01:00 PM	#1
e'sbimmer Private First Class 11 Rep 123 Posts Drives: 2006 BMW 330i e90 Join Date: Jul 2012 Location: Arkansas iTrader: (0)	Indy shop thinks my engine has blown up. PLEASE HELP! I have a 2006 330i with k&n drop in/charcoal delete and muffler delete. Thats it. Yesterday driving casually my car stalled out and I pulled over. I started it back up and it rode very rough and the whole car shook. Got it toed and my indy shop thinks I need a new motor. He said the vanos could need replacing and the rough idle could have caused engine damage inside. He didnt even know if my cpu was stock or tuned(its stock) and he said it could have been because my muffler delete caused bad back pressure. Is this possible?? Thanks
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04-15-2015, 01:02 PM	#2
SDemetris FSAE Dude 63 Rep 759 Posts Drives: E90 328xi Join Date: Jul 2012 Location: Pittsburgh, PA iTrader: (0)	They have no idea what theyre talking about. Sounds like you had a spark plug or ignition coil go bad.. easy fix
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04-15-2015, 01:14 PM	#4
shadow191 Lieutenant Colonel 182 Rep 1,681 Posts Drives: 2017 Volvo XC90 R-Design Join Date: Dec 2012 Location: GA iTrader: (3)	Find a new shop; this one shouldn't be working on cars period with that level of ignorance. Back pressure isn't even a real thing...and a muffler delete wouldn't impact it even if it was. A rough idle can't damage an engine, a rough idle is only a symptom of what is wrong such as bad injector or failed ignition coil.
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04-15-2015, 01:17 PM	#5
Delta0311 Banned 7491 Rep 10,119 Posts Drives: 2011 BMW 335xi E92 2016 228xi Join Date: Apr 2009 Location: NJ iTrader: (1)	Needs a new motor? Nice way of him saying, "hey i think we got a real sucker here that we can take for a few grand". Start with the simplest fix, replace spark plugs and coils.
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04-15-2015, 01:53 PM	#7
chris82 Brigadier General 840 Rep 3,855 Posts Drives: 128i Join Date: Aug 2012 Location: NY NY iTrader: (8) Garage List 2009 BMW 128i [9.80]	Holy god, what kind of shop is this? A gas station? Blown motor caused by backpressure?
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04-15-2015, 03:25 PM	#13
Mike. Mike: Everyone's Pal 2047 Rep 2,974 Posts Drives: F80 M3 Join Date: May 2013 Location: Eastern Long Island iTrader: (5) Garage List 2013 BMW 335xi [10.00]	go to the regional forums and ask for a better shop! __________________ [CENTER] 2021 6.2L Trail Boss, 6" BDS lift, Chevy Performance intake, 35" Nitto Grapplers, 20" Fuel wheels
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04-15-2015, 04:23 PM	#15
hassmaschine Major General 3989 Rep 7,212 Posts Drives: "NBO" 330i Join Date: Jun 2014 Location: earth iTrader: (0)	either way whoever diagnosed the OP's engine needs a new career.
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04-15-2015, 06:02 PM	#16
Three_thirty_I Lieutenant Colonel 381 Rep 1,928 Posts Drives: 2010 BMW E90 330i M Sport Join Date: Aug 2010 Location: Cape Town, South Africa iTrader: (0) Garage List 2010 BMW E90 330i M ... [9.63]	Definitely take the car to a different place and get a second opinion. Does not sound right at all. __________________ 2010 BMW E90 330i M Sport (M) Ex: BMW E90 330i (M) '05 (His) \| (Hers) BMW E46 320i f/l (M) '03
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04-15-2015, 07:40 PM	#17
631twentyeighteye Colonel 200 Rep 2,239 Posts Drives: 08 335i Join Date: Aug 2012 Location: Long island iTrader: (7)	What's the name of the shop? So we can warn others away from it LOL. Probably plugs/coilpack/injectors. __________________ 08 e93 335i MT
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04-16-2015, 12:03 AM	#18
pinoye90 Banned 85 Rep 466 Posts Drives: 07-E90 Join Date: Dec 2011 Location: PHX iTrader: (0)	Please do everyone a favor once car is fixed. Report the shop to bbb, yelp review, Google review the crap out of that shop... Fucking D-bags I hate mechanics/shops like that...
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04-16-2015, 06:51 AM	#19
W37V [Oo=\|\|=oO] 1134 Rep 2,471 Posts Drives: e92n52 & f15n57 Join Date: Aug 2014 Location: DMV iTrader: (0)	Six new plugs and coils (oem) from Amazon are about 200$. It takes up to 30 min for swap.
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04-16-2015, 08:54 AM	#21
mmmnot Custom User Title 418 Rep 1,337 Posts Drives: E92 328i Join Date: Mar 2015 Location: Hotlanta iTrader: (2)	OP - any updates? __________________ My "build" thread
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