Thread: BMW 4.6 is poor acceleration and hesitation
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Old 08-10-2013, 12:25 AM
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bcredliner bcredliner is offline
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Quote:
Originally Posted by upallnight View Post
Sound like your converter are busted up inside and choking the engine because it can't exhaust the gas fast enough. There was another guy that had the same issue.

Here's the link http://www.xoutpost.com/bmw-sav-foru...der-fixed.html

Before buying new converters, here's a video link on how to test the converters.

https://www.youtube.com/watch?v=9TlygJMxTps
It could be a cat, trace that rattling to the source, they rattle when they get bad
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