740il (e32) loud popping noise from exhaust - 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 > 7 Series & 8 Series > 7 Series - E23 / E32 (1977 - 1994)

7 Series - E23 / E32 (1977 - 1994)

Thread Tools Display Modes
Old 03-26-2012, 10:07 PM
740ilniner3 740ilniner3 is offline
Registered User
Location: Los Angeles
Join Date: Mar 2012
Posts: 3
Mein Auto: 1993 740il
Exclamation 740il (e32) loud popping noise from exhaust

I've been working on this 740il to pass the smog check. Smog technician said it was running rich on fuel. After 4 failed tests I got two catalytic converters installed,and Passed the smog check. About 5 minutes later the exhaust starts making these loud popping noises (misfire?), and smelling like rotten egg with a bumpy rough idle. I don't know where to start, got new spark plugs and oil change.
Reply With Quote

See More Related BMW Stories

catalytic converter, misfire, rough idle, smog check

Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 7 Series & 8 Series > 7 Series - E23 / E32 (1977 - 1994)
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

All times are GMT -7. The time now is 08:39 PM.

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