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Re: Idle control valve 540i (archive)

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Posted by Oleg on October 27, 2000 at 11:59:19:

In Reply to: Re: Idle control valve 540i posted by AlexanderF on October 27, 2000 at 05:32:58:

My mechanic said that these carb cleaners dry out the surface they being sprayed on. He advised to use a bit of WD40 after cleaning. I cleaned my idle control valve and followed his advice. NO harm noticed so far.

I had a similar prob and after reading on this list that one can clean the idle control valve with carb cleaner, I tried my luck:
A lot of black gump cleaned out but no significant change (in the meantime I have been told that this procedure could damage the valve, so be carefull - a new one is about 220$).
My 540 is at the garage for the same reason. They found a leak were the engine sucks in air and changed the timing (the 540 engine has a reputation for idle problems). Apparently those two probs were causing poor idle...I will pick her up this afternoon and let you know. At this time I will also be around 1200$ poorer :-(





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