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E36General discussion and technical help for (E36) 1992-1999 3 series cars. 318, 323, 325, 328.
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Your Ride: 1997 328is and others
Originally Posted by donleycott
The engine does not idle smoothly, it seems to idle at a lower speed than it used to.
Where is this solenoid, what does BMW call it?
Thank for helping
With no more than a code reader, it will be very difficult to troubleshoot a poor idle. In order to glean any good info from a forum, be as specific as possible and provide info like; year, engine, miles, exact conditions when the problem occurs, cold, warm, hot, what makes it better, what makes it worse, what you have checked/tested, or not, what corrective action you made, etc.
You will tend to get better answers that way. What you describe now sounds like a vacuum leak.
There are multiple posts that go something like, "I replaced part 'X' with a known good replacement and the problem didn't go away."
Later the 'known good replacement' was replaced with a new dealer part that fixed the problem. So it isn't hard to see fault in how to fix something in the forum?
As for finding it on the engine, a good, high quality manual or realoem.com will have pictures - a picture is worth a thousand words.
Reset the code memory and see how long it takes to come back.
Last edited by C Sean Watts; 10-10-2008 at 10:20 AM..