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pesky whining/whirring/chirping 200 1991

posted by  chris herbst on  Sun Jan 6 15:52 CST 2002
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last visit: Mon Oct 20 20:32 CST 2014
[RELATED]

Put the trans in 1.

Wind it up to where it would have shifted into second and see if it starts again. You need to isolate whether or not it's a trans noise or a driveline noise. If the noise happens in 1st gear also, look to the center bearing on the driveshaft. That's the most likely cause of noise in the drivetrain, and is a weak spot in the driveline.

It's possible that the trans is making a racket, but that would be unlikely.

Also you can try to bring the RPMs up so that the trans shifts to 2 (with the lever in 2 or D). Wait until the whine starts, and then (don't try it if you're really speeding along, even on stands) drop it into 1 and see if it still does the same thing. Or let it shift to 3. Whatever will isolate the transmission from the driveshaft. The fact that it goes along with the road speed of the vehicle from speed to a stop means that it's obviously either related to the output shaft of the transmission or the driveshaft itself.
--
Chris Herbst, near Chicago, IL. 93 940, 91 240, 90 240, 88 740, 87 240






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