Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Arnott
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #11  
Old 06-06-2019, 08:34 PM
Member
 
Join Date: Apr 2009
Location: Ohio
Posts: 1,099
Purplefade is on a distinguished road
Happy to report that my INPA and Tools 32 are working wonderfully now!


Sad to report that dme ram backup did not seem to make a significant difference in my situation. Car restarted after backup fine, idled for about 30 seconds nice and smooth and then lumped up and threw an SES... funny thing, I actually received more data this time - 2A89 DME Exhaust Vanos 2 \ P0024 B Camshaft Position Timing Over-Advanced or System Performance Bank 2 - I have never gotten that much detail before.


EDIT - second unusual thing, it was starting lumpy and then smoothing out, after the backup it now starts smooth and then gets lumpy.



Another strange thing happened, my power folding mirrors both work again... not real sure what happened there.
Reply With Quote

Sponsored Links

  #12  
Old 06-06-2019, 09:39 PM
Member
 
Join Date: Nov 2014
Location: SF Bay Area
Posts: 1,423
oldskewel is on a distinguished road
Sounds like good progress.

Can the fact that it runs perfectly for 30 seconds rule out a lot of problems? Seems like it would. For any problem you're considering, ask if it could exist and still allow things to run perfectly for 30 seconds. I bet not many problem candidates survive that test.

Could it be that VANOS oil pressure takes 30 seconds to build?

If you try to run again quickly after one run, do things go bad more quickly? If yes, maybe because pressure remains high from the previous run? If no, maybe there is a built-in clock timer that waits 30 seconds before doing the "smart" stuff.
__________________
2001 X5 3.0i, 203k miles, AT, owned since 2014
Reply With Quote
  #13  
Old 06-06-2019, 09:52 PM
Member
 
Join Date: Apr 2009
Location: Ohio
Posts: 1,099
Purplefade is on a distinguished road
Quote:
Originally Posted by oldskewel View Post
Sounds like good progress.

Can the fact that it runs perfectly for 30 seconds rule out a lot of problems? Seems like it would. For any problem you're considering, ask if it could exist and still allow things to run perfectly for 30 seconds. I bet not many problem candidates survive that test.

Could it be that VANOS oil pressure takes 30 seconds to build?

If you try to run again quickly after one run, do things go bad more quickly? If yes, maybe because pressure remains high from the previous run? If no, maybe there is a built-in clock timer that waits 30 seconds before doing the "smart" stuff.





That's what I started thinking through, I wondered if it aligned with the transition from high to low idle so I got a little braver and let it keep running as it tripped over its tongue to see if it would transition and it did!


I got 30 seconds +\- smooth idle, followed by 30 +\- seconds of lump, rough almost stalled idle and then went back to smooth and I think would have idled for as long as I let it but would completely fall on its face if I touched the accelerator.



I actually ran it up to temperature and topped off the cooling system from having the coolant hoses loose.


All that said, it definitely means something because something that was physically broken couldn't idle like it did on cold start for 30 seconds.


Not to mention to run like total crap for the following 30 seconds before leveling off into a (for all practical purposes) smooth idle that I swear I could have idled the gas out...
Reply With Quote
  #14  
Old 06-06-2019, 09:55 PM
Member
 
Join Date: Apr 2009
Location: Ohio
Posts: 1,099
Purplefade is on a distinguished road
I am actually starting to wonder if I have something blocking that bank 2 exhaust vanos oil port causing it to not have\lose pressure.


She's scheduled for the shop on Monday, my wife wants to shoot me now for being in the garage so much, she's threatening putting a bed out there for me.
Reply With Quote
  #15  
Old 06-06-2019, 10:57 PM
EODguy's Avatar
Member
 
Join Date: Jun 2018
Location: Saudi Arabia/Philippines/USA
Posts: 3,812
EODguy is on a distinguished road
Quote:
Originally Posted by Purplefade View Post
I am actually starting to wonder if I have something blocking that bank 2 exhaust vanos oil port causing it to not have\lose pressure.


She's scheduled for the shop on Monday, my wife wants to shoot me now for being in the garage so much, she's threatening putting a bed out there for me.
As someone with a 20 year space between kids, trust me... You are better off staying in the garage

Sent from my SM-A730F using Tapatalk
__________________
"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course
Reply With Quote
  #16  
Old 06-07-2019, 09:23 AM
Member
 
Join Date: May 2019
Location: Orion Arm
Posts: 123
X5M-ISH is on a distinguished road
Did you ever verify the timing? I had an M62 with similar issues and come to find out the PO had misaligned the exhaust cam one tooth when doing timing chain guides. You have several threads going so I’m not sure if you stated that.

I’ve never heard of working on the VANOS to fix a mirror issue; I learn something new every day
Reply With Quote
  #17  
Old 06-07-2019, 10:08 AM
Member
 
Join Date: Apr 2009
Location: Ohio
Posts: 1,099
Purplefade is on a distinguished road
Quote:
Originally Posted by X5M-ISH View Post
Did you ever verify the timing? I had an M62 with similar issues and come to find out the PO had misaligned the exhaust cam one tooth when doing timing chain guides. You have several threads going so I’m not sure if you stated that.

I’ve never heard of working on the VANOS to fix a mirror issue; I learn something new every day


Right! DME Ram Backup to try and fix a Vanos issue and all I get are working mirrors

Ha!

Timing was my first thought but following the valve stem seals I checked the timing, went in for dinner and double checked it a second time before putting the valve covers back on. It’s really strange that it will now start and run fine for 30 seconds +\- before transitioning back to a lumpy idle. What’s even more strange is that it only idles rough for 30 ish seconds or so before smoothing back out again... but even after it smooths back out I still can’t touch the accelerator pedal or it lags and wants to stall.

It’s almost like the car comes online, starts and runs and then as everything else starts up O2 sensors warm up, transitions to valvetronic, etc, etc, it just forgets how to run somewhere in that process.

I’m throwing in the towel for the most part, it’s being towed over to my Indy today/tomorrow for a second pair of eyes to look at on Monday.

I will definitely keep everyone posted on what he finds... it’s driving me insane!
Reply With Quote
  #18  
Old 06-07-2019, 11:31 AM
X5only's Avatar
Member
 
Join Date: Feb 2008
Location: Bellevue, WA
Posts: 1,438
X5only is on a distinguished road
I'd wager that all the shop is going to do is recheck timing. As already pointed out your issue is a classic symptom of engine timing being off - great idling but poof as soon as engine is revved. Yes, you did check the timing. The question is that did the timing tool lay completely flat on the cylinder head and did it slide over the camshafts with no hesitation/completely easily?

https://www.newtis.info/tisv2/a/en/e...ontrol/DpNVZpB

Note:
The timing is correctly adjusted when special tool 11 9 461 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.
__________________
'05 E53 X5 4.4i, '97 E39 528, '07 E92 335i, '16 F86 X6M.

Last edited by X5only; 06-07-2019 at 02:40 PM.
Reply With Quote
  #19  
Old 06-07-2019, 12:11 PM
Member
 
Join Date: Apr 2009
Location: Ohio
Posts: 1,099
Purplefade is on a distinguished road
Car doesn’t have to be at Indy until Monday. Maybe I will keep it this weekend and pull the valve covers. I’m annoyed that I have this much time in to it and can’t get it to run. If all I needed to do was pull the VCs and reset the timing I’d be pissed at myself for not doing it.

I think between the nudging on here and my own internal desire to fix this sucker myself... I have been convinced to pull the VCs and make 100% sure my timing is spot on.

Other obligations tonight, but rest assured my ass is on that tomorrow! With everything else pretty well exhausted... it just make sense.
Reply With Quote
  #20  
Old 06-07-2019, 12:23 PM
Member
 
Join Date: May 2019
Location: Orion Arm
Posts: 123
X5M-ISH is on a distinguished road
At this point you have additional expenses to lose, so checking the timing is a great last ditch effort.

Don’t forget to set up your cot tonight and good luck!
Reply With Quote
Reply

Bookmarks

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





All times are GMT -4. The time now is 10:03 PM.
vBulletin, Copyright 2024, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.