[bmw] Re:e28 idle surge

[ebainesjr@xxxxxxx]

Larry - the surging you describe is most likely caused by a faulty Idle 
Control Valve (ICV).  See http://home.att.net/~ebaines/528e.htm for a quick 
description of how I repaired mine on my '86 528e.  In some cases all that's 
needed is a shot of WD-40 to free up the sticky plunger inside the valve.  I 
highly recommend that you invest in a copy of the Bentley Repair Manual - it 
will show you where the ICV is, and how to test it using an ohmeter.  Good 
luck.

-Chip

>My '85 528e (224 kmi, 30+ mpg, 1 quart every 5 kmi, original clutch) has 
>developed a regular habit of surging at idle up to perhaps 1200 rpm, 
>dropping 
>back to 700 or so, then back up.
>
>When I open the hood to try to fix this, what should I be prepared to do?
>
>As an infrequent mechanic, I do not have any repair manuals for this vehicle.
>
>Larry Swain
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