Erratic Idle Fix - 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 > 3-Series (E21, E30)
Register Home Forum Active Topics Gallery / Showroom Auto Loans Garage Search Today's Posts Mark Forums Read Auto EscrowInsurance

3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

BimmerWerkz.com is the premier BMW Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 04-16-2005, 06:24 PM   #1 (permalink)
n00b
 
Join Date: Apr 2005
Car:
Posts: 4
Photos:
snoopy325e is an unknown quantity at this point
Hi all...

Firstly I must say this a great resource to have on hand.

Anyway.. I have been having a few issues with my 86 325e in terms of shuddering and idle/surging problems. I finally found the shuddering which was in fact the right engine mount under the exhaust manifold had completely delaminated into two halves and the left one wasn't far befind in terms of damage. After a trip to Mr BMW parts and a $100 later she is shudder free.

Idle problems were fixed by removing my ICV and cleaning the sucker. I have read numerous faq's on the subject of which some say don't clean it and others recommend cleaning. Well after you would have seen what came out of the ICV its no wonder I had erratic idle. I connected the ICV to a 12v power supply in my workshop to check current draw which should be around 1.2amps when not connected to the ICM. Tests showed I had around 1.3amps and she was a little slow and sticky, so while powering the valve to hold it open I put a little carb cleaner in there and with some q tips I think thay are called in the US, I cleaned her out again and again. After each clean I switched the power off and on to the valve to get the grunge off of the main plunger contact face and cleaned it again with lots of carb cleaner spray to flush the debris out after which she now sits at 1.2amps.... My idle is now better than ever and is rock solid, yehaa.

I also have a surge at part throtlle which I am chasing.... but didn't notice it on the test drive after cleaning the ICV, which doesn't make sense at all.

Cheers...javascriptticon('')
smilie
snoopy325e is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 04-16-2005, 08:31 PM   #2 (permalink)
Neutral Member
 
Join Date: Aug 2004
Location: Portland, OR
Car:
Posts: 96
Photos:
joshh is an unknown quantity at this point
Good to hear!!

Do you have a sheild over the motor mount on that side?
One of my E-30's does and the other does not.
__________________
Finally pulled the M50 from the donor car.
joshh is offline   Reply With Quote
Old 04-16-2005, 08:58 PM   #3 (permalink)
n00b
 
Join Date: Mar 2005
Car:
Posts: 8
Photos:
woolness is an unknown quantity at this point
Good work!

But what is your ICV and where is it? I have the m42 engine 1991 e30 318is. I have had a bit of a idle problem too and thought that I should give her a go too....

cheers

R.

Quote:
Originally posted by snoopy325e@Apr 16 2005, 05:24 PM
Hi all...

Firstly I must say this a great resource to have on hand.

Anyway.. I have been having a few issues with my 86 325e in terms of shuddering and idle/surging problems. I finally found the shuddering which was in fact the right engine mount under the exhaust manifold had completely delaminated into two halves and the left one wasn't far befind in terms of damage. After a trip to Mr BMW parts and a $100 later she is shudder free.

Idle problems were fixed by removing my ICV and cleaning the sucker. I have read numerous faq's on the subject of which some say don't clean it and others recommend cleaning. Well after you would have seen what came out of the ICV its no wonder I had erratic idle. I connected the ICV to a 12v power supply in my workshop to check current draw which should be around 1.2amps when not connected to the ICM. Tests showed I had around 1.3amps and she was a little slow and sticky, so while powering the valve to hold it open I put a little carb cleaner in there and with some q tips I think thay are called in the US, I cleaned her out again and again. After each clean I switched the power off and on to the valve to get the grunge off of the main plunger contact face and cleaned it again with lots of carb cleaner spray to flush the debris out after which she now sits at 1.2amps.... My idle is now better than ever and is rock solid, yehaa.

I also have a surge at part throtlle which I am chasing.... but didn't notice it on the test drive after cleaning the ICV, which doesn't make sense at all.

Cheers...javascriptticon('')
smilie
[snapback]333567[/snapback]
woolness is offline   Reply With Quote
Old 04-16-2005, 09:07 PM   #4 (permalink)
OMFG another one!?
 
witeshark's Avatar
 
Join Date: Aug 2004
Location: Miami FL
Car: 89 E30 325i, 2007 Honda
Posts: 14,690
Photos:
witeshark is just really nicewiteshark is just really nicewiteshark is just really nicewiteshark is just really nicewiteshark is just really nice
Have you had the catalytic converter checked or replaced?
__________________
BMW

Sig by zeaq
witeshark is offline   Reply With Quote
Old 04-17-2005, 06:27 AM   #5 (permalink)
n00b
 
Join Date: Apr 2005
Car:
Posts: 4
Photos:
snoopy325e is an unknown quantity at this point
Quote:
Originally posted by witeshark@Apr 17 2005, 12:37 PM
Have you had the catalytic converter checked or replaced?
[snapback]333648[/snapback]
No I haven't but a good point none the less.

After driving it all day today at every chance I could get, "oh I gotta go to the shops, again "... The idle seems slow to return to 700.. Although the idle is a lot better I think impending clouds of doom are hovering above my ICV. Another thing I found this morning while searching for problems was I noticed I had the smallest coolant leak (drip) right above the throttle position sensor on the throttle body which after inital warm up was leaking coolant onto the switch and possibly creating havoc. Ah hah, shorting of the throttle position sensor could be the culprit I thought, so I replaced the hoses and cleaned the switch out with good results in that as I test drove the car she had no hesitation at 1000 - 2000rpm. Wow what a day two problems fixed.... So I decided to take my wife for a drive down the coast and there she was the bloody hesitation came right on back.

I think I will get the cat converter checked as suggested.

Will have to wait a while but, as I have spent around $2500 this week alone on my baby.

Must get a pic organised..... cya.
snoopy325e is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E21, E30)


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
Erratic Idle / Misfire / Cutting out makdolby 3-Series (E36) 12 02-05-2012 07:57 AM
Idle Problems BeelZibub 5-Series (E12,E28, E34, E39, E60) 10 07-10-2005 04:56 AM
Idle Problems '95 325is Burnettm 3-Series (E36) 3 04-26-2005 12:41 PM
Idle Problems, Intake Service Bulletin? rhansen162 5-Series (E12,E28, E34, E39, E60) 1 03-06-2005 07:18 PM
Warmed up idle puzzle. nightsurfride 3-Series (E21, E30) 2 02-03-2004 08:04 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 10:54 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.