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|3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.|
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Originally Posted by whitey_E30
i was not having this problem before, it started about 2 months ago when the weather started getting cooler. it always surged at idle, but now its doing it while its driving before the engine warms up. also i getting horrible gas mileage. went from about 28-29 mpg down to like 20-21. just wonderd if they were related. i took it to a shop and they said replace the idle control valve. (a few others on the forum said so too in an earlier post) im just wondering if that will fix my mileage problem too.
Originally Posted by jfertita
so there is the coolant temp sensor and the thermo time switch, what are the differences and do they both contribute to bad mpg and erratic idle?
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|Thread||Thread Starter||Forum||Replies||Last Post|
|Erratic Idle / Misfire / Cutting out||makdolby||3-Series (E36)||12||02-05-2012 07:57 AM|
|325es surging in cold weather||whitey_E30||3-Series (E21, E30)||3||10-28-2006 11:07 AM|