Go Bottom4200 Hydro Jerking
 | Lee Anderson
Join Date: Posts: 1 
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2001-06-27 29642
Has anyone had any problems with their 4200 Hydro jerking when going down a hill? I can depress the hydro pedal or even put on the cruise and try to go down a hill and it jerks like the hydro is grabbing then releasing?
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| Doug Huebner
Join Date: Posts: 1
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2001-06-28 29678
I have a 4300 with 180 hours and have been experincing this of late. No idea of the cause and have not investigated it with the dealer as yet. ....
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| Brent B
Join Date: Posts: 1
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2001-06-28 29685
I have a 4200, and do not experience and jerking. I did, however have some surging when trying to creep forward with the hystat. The early
4000's had a thrust washer heat treat problem that caused some problems.
You should search this board using keywords of washer and transmission to see
a couple of issues that have occurred, and see if you have any of the other symptoms. ....
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| JeffM
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2001-06-29 29709
Check to make sure you are not dragging a brake. I was going down a hill on a dirt road recently and noted that one rear tire was disturbing the road surface while the other tire wasn't. Sure enough, the brake on the left side was just dragging a little bit. Don't notice it normally, but when on the road it heated up more and started dragging. If there is one spot on your brake that grabs a little earlier, maybe this could give you the surging effect you experience. ....
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