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Old 05-24-2004, 05:02 PM
Veloce300DT's Avatar
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Join Date: Dec 2002
Location: Sacramento-Bay Area Corridor
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What are symptoms of a worn flex disc?

Lately my car has started to show a slight symptom of what i think may be a wron flex disc. It isnt very bad at all, but id like to troubleshoot before it gets bad.

When accelerating, at higher speeds, I can feel a shudder through the accelerator, and body of the car. It gets stronger when accelerating, and then dissipates, and returns in a weaker form when decellerating slightly at highway speeds.

What could it be?

The car has a new front end, new rear shocks, and all wheels have been balanced and rotated.. no steering wheel vibration, and car doesnt drift an inch. Rides as smooth as possible otherwise.

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Old 05-24-2004, 05:31 PM
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The best way to diagnose flex discs is to crawl under there and look at them.
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Old 05-24-2004, 06:04 PM
Old Deis
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I believe Larry Bible said to Push, Pry, and Pull on them. Anything obvious should be disasembled and the discs inspected carefully. This is not a part you would want to fail while driving.
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Old 05-24-2004, 06:09 PM
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For sure inspect the flex disks but, this sounds to me like a bad center support (the rubber part) or, a worn universal joint. Do a search in here on these terms: "universal joint" and or "center support."

Plenty of experience in here on this.
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Old 05-24-2004, 08:40 PM
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Thanks for the help/reccomendation guys!

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1995 E420
1992 BMW 525i
1984 300D Turbo sold
1993 Volvo 244 sold
1995 Volvo 944T R.I.P!


"The details are not details. They make the product."
-Charles Eames

www.cbs.nu
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