E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > Tuning & Tech > DIY: Do It Yourself

DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 02-19-2015, 05:48 PM   #1
Smwillrich
Registered User
 
Join Date: Mar 2013
Location: Portland, Oregon
Posts: 9
My Ride: 2000 328i
Changed alternator and now...

And now after driving if I give it gas then let off rpms drop like it wants to die and sometimes does die.. Not sure if it's something else causing it. I'm sure it is but I do have a bit of an oil leak now something started leaking almost right after I changed the alternator, possibly oil separator hose??? Any idea on what might be causing this would be much help!

Thanks, and I can post a video of the rpms dropping after I let off gas..
Smwillrich is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 02-19-2015, 09:09 PM   #2
Blisssss
Registered User
 
Join Date: Dec 2014
Location: GA
Posts: 235
My Ride: 2003 330i ZPP/ZSP
Does it seem bogged down when you are pressing the gas as well?
__________________
Mods/Performance & Aesthetic:
Carbonio Carbon Fiber CAI
Smoked Corners/Sides
Euro Tail Lights
Trunk Lip Spoiler
PlastiDip Grills
PlastiDip Ext. Trim - Partially Done
Vogtland Sport Spings - Not Installed

Maintenance:
Valve Cover Gasket - Done
Spark Plugs - Done
Next:
Rebuild DISA -
Vanos Seals -
Cooling System -
Fuel Pump/Filter -
Blisssss is offline   Reply With Quote
Old 02-19-2015, 11:13 PM   #3
Smwillrich
Registered User
 
Join Date: Mar 2013
Location: Portland, Oregon
Posts: 9
My Ride: 2000 328i
Not at all its runs like a champ just does the whole nose dive thing when I left off gas. It died sometimes too it has been happening ever since yesterday that it dies.
Smwillrich is offline   Reply With Quote
Old 05-11-2015, 09:31 AM   #4
E46Jo
Registered User
 
Join Date: May 2010
Location: Houston,Tx
Posts: 4
My Ride: 2000 E46, Vert
Did you figure out the problem you having with this issue Smwillrich ?
I just replace my alternator over the weekend and now I'm having the same problem.
E46Jo is offline   Reply With Quote
Old 05-12-2015, 09:38 AM   #5
Kye7
Registered User
 
Join Date: Aug 2014
Location: El Paso
Posts: 128
My Ride: BMW 2003 330xi
Did you guys clean things up and remember to put the little tiny grounding strap on?
Kye7 is offline   Reply With Quote
Old 05-12-2015, 02:04 PM   #6
E46Jo
Registered User
 
Join Date: May 2010
Location: Houston,Tx
Posts: 4
My Ride: 2000 E46, Vert
I didn't see a ground strap on removal of alternator ..just the plug and red power wire ?
E46Jo is offline   Reply With Quote
Old 05-13-2015, 06:20 PM   #7
basicdumby
Registered User
 
Join Date: May 2015
Location: Palm Bay Florida
Posts: 3
My Ride: 323i
Did you disconnect the battery to reset the computer ?
basicdumby is offline   Reply With Quote
Old 05-14-2015, 09:11 AM   #8
E46Jo
Registered User
 
Join Date: May 2010
Location: Houston,Tx
Posts: 4
My Ride: 2000 E46, Vert
I had disconnected the battery before I installed the alternator ,Do you still have to reset the computer after the job is complete ,... oh well Ill try it see if works
E46Jo is offline   Reply With Quote
Old 05-14-2015, 09:49 AM   #9
markusmarkus
Registered User
 
Join Date: Jul 2008
Location: USA
Posts: 2,424
My Ride: 2001 330Ci
No, the computers (all of them; our cars are full of them) were reset when you reconnected the battery. OP, use the OBC hidden functions (search this site) to check your car's voltage. It should be around 14-14.4VDC with the engine running.
markusmarkus is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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
Censor is ON





All times are GMT -5. The time now is 07:05 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2015, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use