E34 525TD running very rough - 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 > 5-Series (E12,E28, E34, E39, E60)
Register Home Forum Active Topics Gallery / Showroom Auto Loans Garage Search Today's Posts Mark Forums Read Auto EscrowInsurance

5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

BimmerWerkz.com is the premier BMW Forum on the internet. Registered Users do not see the above ads.
LinkBack Thread Tools Display Modes
Old 04-26-2008, 07:57 PM   #1 (permalink)
Join Date: Apr 2008
Location: New Zealand
Car: 1994 E34 525TD, all standard.
Posts: 5
rolli is on a distinguished road
Unhappy E34 525TD running very rough

Hi All
I have a 1994 E34 525td which has stumped everyone I have taken it to.
The injection pump can be adjusted to make it either idle smoothly, but with no throttle, or to have throttle but run very rough - hunting, I believe is the correct term. This a fly-by-wire system - no accelerator cable.
It has a remanufactured injection pump, reconditioned injectors, a new in-tank fuel pump, and the fuel filter has been replaced.
I guess part of the problem is I'm in New Zealand and I'm only aware of 2 of these in the country, which would be why nobody knows much about them. I believe the other one is still running OK.
Before the new injection pump went in it didn't hunt as bad as it does now.
It runs well for about 4 minutes - until the engine starts to warm up - then the hunting quickly gets worse.
With the top of the pump removed (I think) the mechanic has watched the throttle device moving quickly back and forth causing the irregular idle etc.
I really like the car, but it's driving me crazy!
I will be very grateful for any help/sugestions.
rolli is offline   Reply With Quote
Sponsored Links

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 5-Series (E12,E28, E34, E39, E60)

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
Running rough bagelboy91 3-Series (E21, E30) 11 12-10-2007 01:03 AM
e34 525i running rough... cold weather? d3ity 5-Series (E12,E28, E34, E39, E60) 3 11-12-2007 09:35 PM
m20 running rough Yakker 5-Series (E12,E28, E34, E39, E60) 5 03-23-2007 02:15 PM
Rough running AndyBaloch 3-Series (E36) 5 08-11-2004 03:00 AM
rough running at 20-30 mph duece 1,6,7,8 - Series and Mini Cooper 3 05-13-2004 10:00 AM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 01:00 AM.

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.