Clunking on Rolling Start, Deceleration to Stop
#1
Clunking on Rolling Start, Deceleration to Stop
My AT, SR5 '98 4Runner clunks after releasing the brake from stop to a rolling start and also when decelerating to stop. It feels like it could be transmission or differential. What does your experience suggest?
Appreciate the help.
SES
Appreciate the help.
SES
#2
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Join Date: Mar 2007
Location: Cochiti Pueblo, NM
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Sounds like it could be your U-joints. Or lets hope so since it would be an easier fix. You can manually rotate the driveshaft and see how much play there is at the U-joints. You may even reproduce the sound.
Last edited by rezrunner; 02-19-2011 at 08:44 AM.
#4
Contributing Member
I just fixed this problem by greasing the crap out of my u joints and slip yolk.
I had jacked up the rear to play around with the driveshaft but couldn't see or hear any play, so I just did all of them until all the old grease came out (probably 10 pumps per u-joint fitting, and 30 pumps for the slip yolk).
It should be mentioned you should not over grease the slip yolk. I think mine needed a ton because it had never been greased in 14 years.
I had jacked up the rear to play around with the driveshaft but couldn't see or hear any play, so I just did all of them until all the old grease came out (probably 10 pumps per u-joint fitting, and 30 pumps for the slip yolk).
It should be mentioned you should not over grease the slip yolk. I think mine needed a ton because it had never been greased in 14 years.
Last edited by BajaRunner; 02-19-2011 at 10:46 AM.
#5
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Grease the hell out of your slip yoke. Pump it until the grease that comes out is the same color as new grease. Drive it for a while and then you may have to do it again, possibly a third time. The ideas is that you need to flush/purge out the old rotten grease that may have been in there untouched since new.
I have read, though, that perhaps sagging rear springs can contribute to the problem.
I have read, though, that perhaps sagging rear springs can contribute to the problem.
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