backfire probs with my 325is - BMW Forum - BimmerWerkz.com
BMW Forum BMW Forum

Auto Insurance

» Featured Product
Wheel & Tire Center

Go Back   BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E36)
Register Home Forum Active Topics Gallery / Showroom Auto Loans Garage Search Today's Posts Mark Forums Read Auto EscrowInsurance

3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

BimmerWerkz.com is the premier BMW Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 08-10-2008, 05:06 PM   #1 (permalink)
n00b
 
daddyt06's Avatar
 
Join Date: Aug 2008
Location: SoCal
Car: 93, 325is
Posts: 8
Photos:
daddyt06 is on a distinguished road
backfire probs with my 325is

ok, long story short. took my car to the local bmw (savage) because i had a misfire in my 4th cylinder. i myself swapped plugs coils etc. couldnt find the prob. they told me that my computer (dme) was causing a misfire in my 4th cylinder. sh*t, ok they changed it they flashed it and all together cost me 2k (comp was 1500$) so here i am mr happy driving off from the dealer with my car running fine. i get home and about 30 mins later decide to go to the store. start the car and it runs a lil ruff at first, stopped then ran fine. backed up and took off and i get a back fire at about 1400 rpms with slow accel and i can feel the car shaking as if a misfire but felt more like a timing issue. took it back the next morning and they checked it out and said that my cam timing is off and for them to get into it would be a min of 1 hour to 8 hours at 127$ per hour. before i took it to them i didnt have a backfire, only a misfire. timing was fine and now they are trying to say it wasnt connected to replacing the comp. ok, in my expierence the timing chain and timing is regulated by the comp, please correct me if im mistaken, but should i take it back to bmw and tell them to fix the problem, or are they not responsible for this prob since they fixed the misfire? all they told me was it could be a few things like bad coil, mechanical probs with engine, etc. advice por favor!
daddyt06 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-10-2008, 10:09 PM   #2 (permalink)
5th Gear Member
 
darkhorse737's Avatar
 
Join Date: May 2008
Location: San Francisco, CA
Car: 88 super ETA, 95 525i
Posts: 1,494
Photos:
darkhorse737 is on a distinguished road
Cool

what year model 325is???
darkhorse737 is offline   Reply With Quote
Old 08-10-2008, 10:27 PM   #3 (permalink)
n00b
 
daddyt06's Avatar
 
Join Date: Aug 2008
Location: SoCal
Car: 93, 325is
Posts: 8
Photos:
daddyt06 is on a distinguished road
its a 93.
daddyt06 is offline   Reply With Quote
Old 08-11-2008, 09:23 AM   #4 (permalink)
n00b
 
Join Date: Aug 2008
Car:
Posts: 18
Photos:
Lower_Level is on a distinguished road
timing chain is driven off the crank, and the cams are driven by the timing chain. The computer does nothing for the cam timing; it has to be mechanically set with BMW special tool # blah blah blah. You get the idea.

Don't think that changing the DME would affect the position of the cams in any way...
Lower_Level is offline   Reply With Quote
Old 08-11-2008, 09:33 AM   #5 (permalink)
5th Gear Member
 
darkhorse737's Avatar
 
Join Date: May 2008
Location: San Francisco, CA
Car: 88 super ETA, 95 525i
Posts: 1,494
Photos:
darkhorse737 is on a distinguished road
Unhappy

get a 2nd opinion from a reputable shop in your area, and let's see.

in fact, i am very suspicious about the dealer's logic of faulting and re-flashing the DME. I would like to know exactly what tests they did to reach that conclusion.
darkhorse737 is offline   Reply With Quote
Old 08-11-2008, 06:54 PM   #6 (permalink)
n00b
 
daddyt06's Avatar
 
Join Date: Aug 2008
Location: SoCal
Car: 93, 325is
Posts: 8
Photos:
daddyt06 is on a distinguished road
Well the problem im having with the dealer is that my timing wasnt off when i took it to them. the only problem was a misfire in my 4th cylinder. only after me driving the car away to my house did i get a timing problem. not even 5 miles. if the timing was off im sure they wouldve told me that and charged me another 8 hours labor to fix it.
daddyt06 is offline   Reply With Quote
Old 08-11-2008, 10:00 PM   #7 (permalink)
n00b
 
daddyt06's Avatar
 
Join Date: Aug 2008
Location: SoCal
Car: 93, 325is
Posts: 8
Photos:
daddyt06 is on a distinguished road
so dme not affecting cam timing what could be a cause of throwing off the timing? dropped car back off at dealer told them tell me exactly what the problem is since i only had it for 15 mins and it had a new different problem.
daddyt06 is offline   Reply With Quote
Old 08-12-2008, 10:14 AM   #8 (permalink)
n00b
 
Join Date: Aug 2008
Car:
Posts: 18
Photos:
Lower_Level is on a distinguished road
odd thought; but is it possible the timing chain tensioner failed & now your cams [I]aren't[I] in time anymore? It would be flukey that it happened when it did though.
Lower_Level is offline   Reply With Quote
Old 08-12-2008, 08:03 PM   #9 (permalink)
n00b
 
daddyt06's Avatar
 
Join Date: Aug 2008
Location: SoCal
Car: 93, 325is
Posts: 8
Photos:
daddyt06 is on a distinguished road
well my service rep called me about 15 mins ago and said they didnt find a definite answer yet and they would have to get back with me tomorrow. im just hoping that they find out the problem and dont just say oh it could be 4 different things like before.
daddyt06 is offline   Reply With Quote
Old 08-14-2008, 06:12 PM   #10 (permalink)
n00b
 
daddyt06's Avatar
 
Join Date: Aug 2008
Location: SoCal
Car: 93, 325is
Posts: 8
Photos:
daddyt06 is on a distinguished road
update

ok they said they couldnt find a reason for the timing problem, only thing they can do is charge me 762$ - 6 hours labor, to fix it. first 4 hours is just to remove the valve cover, which only takes an hour, but for sum reason they charge 4. and 2 additional hours for them to adjust the timing... any thoughts / suggests?
daddyt06 is offline   Reply With Quote
Old 08-16-2008, 07:26 PM   #11 (permalink)
5th Gear Member
 
darkhorse737's Avatar
 
Join Date: May 2008
Location: San Francisco, CA
Car: 88 super ETA, 95 525i
Posts: 1,494
Photos:
darkhorse737 is on a distinguished road
Unhappy

Quote:
Originally Posted by daddyt06 View Post
ok they said they couldnt find a reason for the timing problem, only thing they can do is charge me 762$ - 6 hours labor, to fix it. first 4 hours is just to remove the valve cover, which only takes an hour, but for sum reason they charge 4. and 2 additional hours for them to adjust the timing... any thoughts / suggests?
it probably wasn't a timing prob to start with and that why they cdnt find anything!

you paid for a job that didnt get done? why is that??????? I don't want to sound philosophic but if that was the way a dealer treats a customer... man, then all i need is to get a 6th grader to open up the covers, look into the engine, put everything back together, and shove u a bill. Now, NOW that doesn't sound right

* and, from a business point of view, it isnt ethical, nor is it professional for a business to do that

Last edited by darkhorse737; 08-16-2008 at 07:33 PM.
darkhorse737 is offline   Reply With Quote
Old 08-16-2008, 08:31 PM   #12 (permalink)
n00b
 
daddyt06's Avatar
 
Join Date: Aug 2008
Location: SoCal
Car: 93, 325is
Posts: 8
Photos:
daddyt06 is on a distinguished road
Thumbs down

final draft... ok turns out 2 bad coils were working at about hald capacity, which was giving me the back fire. they took off the valve cover and checked the timing was fine, AFTER they did that they then checked the ignition coils and found the two that were malfunctioning. they had to of course replace the bolt grommets and valve cover gasket. (i just changed the valve cover gasket my self a week ago, last thursday to be exact) they then charged me 300 labor (2.3 hours) and 95 dollars for the gaskets. they did not fix the problem because i can get the coils cheaper from bavauto then there and do the work my self. so i paid $399.82 for basically nothing. they shouold have told me the coils were bad before taking off the valve cover. i already went back and told then i wanted a refund since they didnt DO anything but tell me what they should have before. so yeah, gotta wait til monday now. talk to my advisor....
daddyt06 is offline   Reply With Quote
Old 08-17-2008, 08:15 AM   #13 (permalink)
n00b
 
Join Date: Aug 2008
Car:
Posts: 18
Photos:
Lower_Level is on a distinguished road
out of curiosity; how did they "test" the coils to find out they were bad? Is there a way that you could have done that in your driveway?
Lower_Level is offline   Reply With Quote
Old 08-17-2008, 11:14 PM   #14 (permalink)
n00b
 
daddyt06's Avatar
 
Join Date: Aug 2008
Location: SoCal
Car: 93, 325is
Posts: 8
Photos:
daddyt06 is on a distinguished road
i guess they just swapped them with sum other ones. they didnt tell me. ill be sure to ask when i go back.
daddyt06 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E36)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Newbe Here With A Few Probs xgordyx 5-Series (E12,E28, E34, E39, E60) 5 12-06-2004 12:35 PM
Window probs justin93 3-Series (E36) 12 06-21-2004 11:22 PM
Steering probs! ksamy 3-Series (E36) 6 05-11-2004 02:43 AM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 03:03 PM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.