Question about 1994 BMW 3 Series
What about your coil packs are they working? it can always be a cam sensor or crank sensor
Posted on Sep 26, 2009
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Posted on Jan 02, 2017
the relay is under the bonet and i think its brown , but befor you do that lift the rear seat and get some one to turn the ignition on as you listen to see if you can hear it prim as the relay does two jobs , prime and fead if it does nither you may need a pump . email me if you need more help
Posted on May 05, 2009
could be the coil.... or if it has one the coil pack could be faulty....if theirs no spark,,,,,,thats what gives the spark...........
Posted on Apr 28, 2009
SOURCE: 1987 bmw 325 idles rough
I had a similar problem on a 318IS.
The rough idling was accompanied by an occasional whistling noise from the general engine area (caused by air leaks through the front and rear crankshaft oil seals).
The problem was caused by a faulty crankcase ventilation valve (Costs about $100).
The vent valve is easy to replace - (2 screws) - check the vacuum hose that connects this valve back to the tappet cover air vent nipple - it goes soggy and disintegrates.- replace with suitable oil resistant vacuum hose.
While on the job, clean the throttle body / butterfly valve internally with a soft toothbrush dipped in petrol. This cleans off sooty deposits - makes engine idle rpm more consistant.
Posted on Jun 04, 2009
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