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BMWCCA 12660
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306 Posts
Discussion Starter #1
The past few weeks I have noticed that when I stop for a light (etc) the idle speed is sometime around 6 to 650 rpm, and sometimes it is up around 750 to 800 rpm...I can't figure a reason ???
 

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Spark plugs, coils, or vacuum leak would most likely be the culprit. Possibly your idler pulleys also, but I doubt they would cause an inconsistent idle


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