hesitation, rough idle...help?? - Bimmerfest - BMW Forums

Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > M3 & M4 > E30 M3 (1986-1990)

E30 M3 (1986-1990)

Thread Tools Display Modes
Old 05-16-2005, 04:38 PM
BMWstep BMWstep is offline
Registered User
Location: oxnard, ca
Join Date: Apr 2005
Posts: 6
Mein Auto: BMW e30 m3
Question hesitation, rough idle...help??

My 88 M3 has rough idle at start up and gets better as it warms up but still it isnt holding a solid idle.
car slightly hesitates through the whole rpm range, it almost feels like the clutch slip but it isnt. It seems like its getting worst everyday.
Anyone have any idea what it could be?
Reply With Quote
Old 05-16-2005, 04:48 PM
Lanc3r Lanc3r is offline
Join Date: Sep 2004
Posts: 0
Mein Auto:
A guess: O2 sensor.

I would normally spout off the "routine" items that afflict the aging E30s, but Dude! You have an M3! I would STRONGLY recommend a good Independent mechanic with M motor experience. IIRC there are 10,000 mile valve adjustment intervals with the M motors. This "could" be your problem. But, without some kind of history (parts replaced recently, last tune-up) its quite difficult to diagnose.
Reply With Quote

See More Related BMW Stories

Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > M3 & M4 > E30 M3 (1986-1990)
Today's Posts Search
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 On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
1995 540i, Rough running at Idle???? balboaislandbob E34 (1989 - 1995) 11 03-11-2013 06:00 PM
Software update for 4k rpm power drop and rough idle TLudwig E46 (1999 - 2006) 3 05-13-2005 04:32 PM
Rough idle and Check engine light??? dvs7310 3 Series & 4 Series 3 07-16-2004 08:48 PM
Rough idle? - call this #!!!! killajoe 3 Series & 4 Series 8 04-23-2004 05:55 PM
Rough Idle, and Runs Rough??????? TimDogg 3 Series & 4 Series 0 12-26-2003 11:41 PM

All times are GMT -7. The time now is 02:19 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
© 2001- VerticalScope Inc. All rights reserved.