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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

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Old 01-04-2010, 12:07 PM   #1 (permalink)
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1996 318is whistling noise+misfire on idle

Hi everyone, Im new to the forum and I was wondering if u guys can help as I am clueless with BMW's Me and my father bought a 96 318is (M44) with 82000miles about a week ago but it makes a fairly loud whistling noise coming from under the fuel injection somewhere. We took out the DISA system and found that the diaphragm of the unit was broken, we replaced the whole unit now but the noise is still there. The car also has an uneven idle when u sit at a traffic light but once blip the throttle it goes away for abt 10secs and then reappears again..maybe this could be related to the whistling noise? We checked all the intake/vacuum pipes except for under the fuel injection as it is quite difficult to get to. Can it be the CCV perhaps? Any advice will be much appreciated. Thanks
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Old 01-04-2010, 12:15 PM   #2 (permalink)
OMFG another one!?
 
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Have you checked the intake ducting for cracks?
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