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**troyvelius** · 10-10-2008, 01:33 PM

I cleaned the ICV on our e34 1991 525i, so I'll mention that all I needed to remove was the big air intake hose, and a small hose that was in the way (very obvious to un-plug and replug). I spent quite some time yanking at the hose connected to the ICV, but I was able to stick a flathead screwdriver through one of the holes in the intake manifold to give me extra leverage. It was a pretty tight squeeze and I'm quite thin, so this isn't a job for someone with large arms.

The big hose from the ICV was incredibly hard to get off, but easy to get back on.
Too bad my ICV was clean... I think the rough idle must be a vacuum leak then.

Thanks for the write-up.

10-10-2008, 01:33 PM	#26
troyvelius Name: troyvelius Title: United Newb Status: Offline Join Date: Oct 2008 Location: St. Louis User not setup in Rate My Car. Click here to set it up. Your Ride: 1991 BMW 525i	I cleaned the ICV on our e34 1991 525i, so I'll mention that all I needed to remove was the big air intake hose, and a small hose that was in the way (very obvious to un-plug and replug). I spent quite some time yanking at the hose connected to the ICV, but I was able to stick a flathead screwdriver through one of the holes in the intake manifold to give me extra leverage. It was a pretty tight squeeze and I'm quite thin, so this isn't a job for someone with large arms. The big hose from the ICV was incredibly hard to get off, but easy to get back on. Too bad my ICV was clean... I think the rough idle must be a vacuum leak then. Thanks for the write-up.