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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 09-17-2004, 05:33 PM   #1 (permalink)
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You know how when you go between medians on the highway you can hear every noise your car makes?.... Well when i first bought my car a few months ago I noticed a slurpy noise coming from my exhaust ( like when you are down to the end of a pop from mcdonalds through a straw).... I got my car in the air with it running and found some leaks in the resonators and welded them shut. This cured the problem a lot but not completely. At the same time I noticed the guts in my muffler were shot so i figured the rest of this noise was caused by the blown muffler. I then put an m3 muffler on. Exhaust note got quieter but slurpy noise still there (I do not like the quiet note by the way). Since then i have had the car in the air again with the exhaust dropped down on a transmission jack so i could feel the top for leaks. I could not find any leaks from the manifold back. I passed e check so i do not think the cats are rusted out (they could be though). Since I did patch up holes in the resonators they might be rusted inside but why would the exhaust note be so quiet? I feel like this sound is the cause for the sluggishness of my 93 325is. Any input is appreciated.
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Old 09-17-2004, 05:38 PM   #2 (permalink)
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OMG.. sounds like your car needs a new Cat back exhaust system... it would probably save you a head ache.... good luck...

slurp away,

Les
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Old 09-18-2004, 08:54 AM   #3 (permalink)
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already did the cat back... it is in the post
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Old 09-19-2004, 12:51 AM   #4 (permalink)
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hey it sounds like i got the same problem with my car. i've got a 94 325is. and when i let it sit there and idle, you can hear that gurgly noise. it kinda has a very low bassy popping sound. it makes me think the engine is running rough and leads me to thinkin that i've got a prob with my fuel inj system. my car hesititates sometimes too. so i've got now clue what the problem is. i guess i'll be taking it to my mechanic soon. i've changed the plugs and stuff. so i know its not them too. well hope you find out whats wrong. if you do let me know please. -Thanks
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