Shaking in the rain
b.benz at charter.net
Wed Apr 6 11:17:53 EDT 2005
Sounds like propeller shaft cavitation to me.
> From: Dave C <dconner at gmail.com>
> I just returned from a trip to Florida and Georgia in the 87 5ktq
> where the monsoon season was in full swing. A problem developed
> during hi-speed driving on roads with accumulated water ... the car
> would develop a violent shudder like an out of balance washing
> machine. It seemed to be coming from under the middle of the car.
> Taking my foot off the accelerator or shifting in to neutral made no
> difference. Slowing down would cause the shuddering to slow down.
> I'd coast to a stop, wait briefly, then go on and all would be normal
> until I'd pass through more water and this would bring it on again.
> Brief water wouldn't do it .... many minutes of high speed water would
> bring it on. Wet roads, spray, and normal rain were no problem,
> torrential downpours with inch deep water on the road would bring it
> It kind of felt like the center drive shaft was out of balance or
> alignment. I looked at the driveshaft, carrier bearing, etc and all
> appear normal. I greased the U-joint within the past month. There
> are 140k miles on the car and as far as I know there has never
> been any work done on the driveshaft.
> Any ideas?
> - -
> Dave C.
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