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-   -   Vibration when accelerating? (

WC5150 09-28-2012 10:20 AM

Vibration when accelerating?
It seems when i accelerate from a stop, I get a bad thumping/vibration,that can be felt around the center/rear of the car.:eek: After 20-30mph,it goes away,and dives smooth again! Could it be a driveline problem?:dunno: I dont think its a trans. issue,cuz it shifts fine.No slips at all! Any thoughts?

robertobaggio20 09-28-2012 10:40 AM

Sound like your guibo. Have the car jacked up, shut the engine down, and rotate the centre shaft back and forth with your hands. If there is alot of free play, that confirms actually that would be the universal joint and not the guibo I believe. Look at the guibo visually. It may be obviously worn and damaged as well.

If your U joints are screwed, please purchase a rebuilt one. A good used one can be purchased from the yard if you know how to inspect it. Replacing the centre shaft is not a simple task so it might not be advisable if cutting corners only means you'll need to do the work once again down the line.

Lapin 229 09-28-2012 02:04 PM

Check your Center shaft bearing

WC5150 09-28-2012 03:57 PM

Okay! Thanx.
Thanks For the feed back! I will try all.....:thumbup: By the way,has anyone upgraded thief 525i with "Angel Eye" projector headlights?:confused: I bought some and was wondering if there is anything to watch out for when installing them?

1995i540 09-30-2012 04:49 PM

If it's your guibo you can see it right away no need to turn anything, when you are under the car jack up your engine slightly from left and right side (use board/common sense) and see if mounts allow out of spec movements, do the same for transmission mounts. In these cars the culpit for vibration is usually motor mounts. Also check your fan clutch for seizing. The diff bushing will be PITA to fix but you can visually inspect it as far as I can recall.

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