318ti.org forum

Go Back   318ti.org forum > Technical, Maintenance and Modifications > Maintenance

Notices

Maintenance Service Interval questions, oil change info.

.
» Recent Threads
1999 M-Sport For Sale
12-31-2023 05:10 PM
Last post by Coop540iT
03-23-2024 06:39 PM
1 Replies, 100,124 Views
Once again 318ti owner...
03-20-2024 12:39 PM
Last post by two30grain
03-22-2024 02:04 PM
1 Replies, 63,036 Views
What brakes do I...
03-20-2024 03:27 PM
Last post by huirtera
03-20-2024 03:27 PM
0 Replies, 60,270 Views
Reply Share/Bookmark
 
Thread Tools Display Modes
Old 03-15-2008, 05:22 AM   #1
yoyozhu
Junior Member
 
Join Date: Mar 2008
Location: Australia
Posts: 5
iTrader: (0)
Default Please help, weird problem causes my 318ti stall

Hi guys, I have a 97' 318ti manual. Recently it gets some weird problem that I would like to find some help, please. Sometimes, when I put the car in neutral ( the problem only happens when it's neutral or idealing), the rev itself would move up and down strangely. The rev would drop to around 500 rpm and come back to 1000 rmp ( each up and down cycle would take 3-5 secs), and also I could feel some weird shakes from the engine while the rev was dropping.

And the problem turned worse today, when I turned the car on, the rev started to move up and down again. And after it dropped to 500 rpm twice, the car just stalled itself ( it was in neutral, and I didn't step on the accelerator). Then I turned the car on again, the rev was still moving up and down, but I just started to drive it before it could stall, it ran well. After I got my destination, I tried to turn the car on and off for a few times, everything was back to normal, the rev was steady and no sign of stalling.

I'm just wondering what could be happening on my car, anyone got any idea? Please enlighten me, thanks!
yoyozhu is offline   Reply With Quote
Old 03-15-2008, 05:29 AM   #2
Bobbak
Senior Member
 
Bobbak's Avatar
 
Join Date: Jul 2006
Location: Southern California - Orange county
Posts: 978
iTrader: (0)
Default

i had the exact problem check ur ICV (idol control valve) then check ur crank case vent valve is ur CEL turning on these are the only 2 main things that would cause your idol to act weird BTW how many miles do u have on ur TI hope this info helps


try this

http://forums.bimmerforums.com/forum...d.php?t=454501
__________________
1995 318ti Cosmos Black
Bilsteins w/ H&R Sport, Depos w/ angeleyes and HID 5K, 50% short throw kit, Custom fogged intake, AC schnitzer pedels w/ deadpedels, leather stickshift knob, vitesse tuning Ebreak boot w/ shift boot, X-Brace, 325/328 brake upgrade, Gray millpoint leather and cloth interior, custom computer multimedia system, and Style 5 BBS 17" rims, M3 Mirrors, CF Hood









Bobbak is offline   Reply With Quote
Old 03-15-2008, 05:44 AM   #3
PettitWC
Senior Member
 
PettitWC's Avatar
 
Join Date: Jan 2005
Location: Fort Collins, CO
Posts: 1,305
iTrader: (0)
Default

yeah, idle control valve or a leak in your boot
__________________
-Chris

1997 318ti

'cause I'm a Balla Baby

FACEBOOK!!
MY SPACE!!
PettitWC is offline   Reply With Quote
Old 03-15-2008, 05:51 AM   #4
yoyozhu
Junior Member
 
Join Date: Mar 2008
Location: Australia
Posts: 5
iTrader: (0)
Default

Great thanks Bobbak, I'll give a try tomorrow and let you guys know how it goes. And that page you provided is a great write up! My 318ti already has 190k kms.

BTW, PettieWC, what do you mean by "a leak in your boot"?
yoyozhu is offline   Reply With Quote
Old 03-15-2008, 06:01 AM   #5
PettitWC
Senior Member
 
PettitWC's Avatar
 
Join Date: Jan 2005
Location: Fort Collins, CO
Posts: 1,305
iTrader: (0)
Default

sorry, that vacuum boot that goes to the intake manifold. it's that big hose on the front lright of the engine compartment with the bumps on it. it's really good at hiding little leaks that could be a partial or even complete cause of the problem
__________________
-Chris

1997 318ti

'cause I'm a Balla Baby

FACEBOOK!!
MY SPACE!!
PettitWC is offline   Reply With Quote
Old 03-16-2008, 12:47 AM   #6
tiFreak
Senior Member
 
Join Date: Sep 2007
Location: asdfasdf
Posts: 10,002
Vehicles
iTrader: (8)
Default

Quote:
Originally Posted by PettitWC View Post
sorry, that vacuum boot that goes to the intake manifold. it's that big hose on the front lright of the engine compartment with the bumps on it. it's really good at hiding little leaks that could be a partial or even complete cause of the problem
+1, I had the same problem, when the car is cold the air leaks out of the crack, but as the engine gets warmer, the rubber expands, and seals the crack, use duct tape if your not concerned about appearance, otherwise, you'll need a new one
tiFreak is offline   Reply With Quote
Old 03-21-2008, 11:33 AM   #7
yoyozhu
Junior Member
 
Join Date: Mar 2008
Location: Australia
Posts: 5
iTrader: (0)
Default

Sigh...

I'm stupid enough that after I opened the manifold, I still can't find the ICV, see the photo below:

It took me half an hour to reach there, but no ICV was found, D'oh!!!

But I also heard this "ICV on 96 M44 is mounted to throttle housing - in plain sight. After a painful, and embarrasing, search under upper intake I discovered the ICV right under my nose. Two torx screws and 5 minutes later I was done."

I think my 97 318ti should have the same pattern as the guy described above. So can someone show me a photo of where exectly is the ICV on an M44 please? I really want to have this thing done by myself.

Thanks, and happy Easter!!!
yoyozhu is offline   Reply With Quote
Old 03-21-2008, 03:02 PM   #8
thesk8nmidget
Senior Member
 
thesk8nmidget's Avatar
 
Join Date: Oct 2007
Location: Eugene Oregon
Posts: 6,182
iTrader: (2)
Default

its number 9 in this diagram
http://www.realoem.com/bmw/showparts...02&hg=13&fg=15

when i had my m44 i took it off sprayed it a bunch with carb cleaner and then put it back in. problem solved.

the torque on these are only like 5 pds so dont crank on them to tight. just nice and snug.

also check the intake boot.
its number 3 here
http://www.realoem.com/bmw/showparts...18&hg=13&fg=15
__________________
-Josh
Sold-1995 318ti, Club Sport, Hellrot
Sold-1996 318ti, Active Model, Boston Green
Current- 1995 318ti, sport model, schwartz
thesk8nmidget is offline   Reply With Quote
Old 03-21-2008, 04:37 PM   #9
mohaughn
Senior Member
 
Join Date: Aug 2005
Location: Florida
Posts: 2,525
iTrader: (1)
Default

Looks like your car is different. If you see the three circles arranged in a triangle, it should be located directly to the left of that. If it is under the manifold.

But these cars do differ from region to region. I would look against the firewall, the E30's used to have them located back there. That hose that is located next to the three circles, follow that hose and see where it goes.

The picture that midget showed has it on the side of the throttle body.. not under the intake though. Look there. You don't have that side of the TB shown in your picture.
mohaughn is offline   Reply With Quote
Reply

Bookmarks


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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
E46 Ti - Front speaker replacement using existing speaker housing and standard 6.5" vatovey Knowledge Base 4 01-29-2010 11:51 AM
bulb help classicronnie Exterior 9 12-27-2007 10:54 PM
Standard H1 Bulb Or ...... Tyler Exterior 16 01-13-2007 07:55 PM
Difference between standard and Sport susp? PeteN95 Suspension 5 09-20-2006 08:01 PM
Standard for Standard Diff Swap stormos Differentials 4 03-14-2006 11:33 PM


All times are GMT +1. The time now is 11:49 PM.


.
Powered by site supporters
vBulletin Version 3.8.8
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©1999 - 2024, 318ti.org
© vBadvanced CMPS v3.2.2
[page compression: 92.64 k/109.14 k (15.12%)]

318ti.org does not warrant or assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information or products discussed.