Re: E36 Drivability Problems

["G. Steinke" <g_steinke@xxxxxxxxxxx>]

Hans,
My E36 had a driveability problem like yours. Severe stumble on tip in from 
low rpm. But mine did it when cold, and cleared up when hot, so your 
mechanic is not really right on that. The problem was in fact two of the 
coils, which are a known weak spot on the E36 I6 engine. The two bad coils 
made the whole engine stumble at low rpm. The mechanic I went to was able to 
diagnose it with a test.

Summary - it could be the coils, as my similar problem was caused by the 
coils.

Good luck
Greg

>From: Hans Conser <conser@domain.elided>
>Subject: E36 Drivability Problems
>My 92 325i has major drivability problems, mostly when it is very warm,
>which has made it difficult to get it fixed I think because mechanics
>don't have time to drive it enough to make it do what it does:
>
>*Severe* stumble at low RPM's on throttle tip in, missing at all RPM's,
>intermittent miss and roughness at idle.
...
>My mechanic says a bad coil that only shows up when very hot, so I have
>a coil ordered and plan to start swapping one at a time.  Would one bad
>coil cause the whole engine to stumble?
>
>Hans Conser


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