What Might Cause This? - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 05-27-2006, 08:05 AM
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What Might Cause This?

well, im trying to figure out somthing and im having trouble...

when accelerating in 1,2,3, I hear a loud thumping noize in the drivetrain that increases with speed... im still not sure where but it almost feels like its in-between the front seats... or possiably further back... its only noticable in those gears at around 1,000-3,000rpm range... 2nd gear is the worst. this happens when accelerating at a normal pace... if i take it TURTLE slow and short shift, its not noticable.
Has anyone had this?

also, the Coolent Dummy light is comming on and ive filled the bottle to the top... any ideas? and also how well known is the stock Temp Gauge known for craping out?

Thanks,
Tim

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#2 (permalink) Old 05-27-2006, 08:59 AM
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Check out the flexible disc. It's called a guibo, and it has six nuts going through it. If it breaks, or maybe a little farther back, the carrier bearing, it will make a hell of a racket. these are both on your driveshaft. The guibo right after your transmission, the carrier bearing a little farther back.

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