Idle

[E36_325i]

Hi

Noticed last night that when I stopped at a robot the revs where 'bouncing' between 500 & 800 rpm they would settle out after a few seconds.

This morning everything is perfect. I read that it could be a vacuum leak but then would'nt it idle like that all the time? I also read that the idle control valve is a common issue.

Does this sound more like a leak or icv?

Thanks

 

[STREETRACER]

Idling control valve for sure if it levels out after a few seconds , rev it and does it again and then levels out!

Take it off clean it with Spirits, methanol or carb cleaner, and some ear buds! it carbons up and the valve gets sticky!

 

[E36_325i]

Hey Streetracer

Thanks for the help, ill definitely give it a clean over the weekend

 

[gazza]

where do we find control valve

 

[E36_325i]

Heres a link I found with some instructions & pics.

http://www.unitedbimmer.com/forums/bmw-oem-parts-department-diys-faqs/3231-icv-cleaning-diy.html

 

[Raybimmer]

On E36 325i it sits under the inlet manifold , has an electrical plug on the front end and two rubber hoses onto it . I found soaking it in paraffin and shaking it till the inner parts moved freely worked .