Transmission hesitates

Old 05-17-12, 08:57 AM
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Transmission hesitates

Craftsman DYT4000 riding mower, 8 years old. When going up hill, the mower bucks at times when going up hill. Just started last year; thought it was the fuel filter, but that didn't solve the problem. Down hill or level ground is no issue. All engine filters are new and mower is tuned up; don't know if there's a transmission filter maybe that I need to change or is it a relief valve problem. I mention relief valve because I hear a slight "psss" sound when it bucks. Any help is greatly appreciated. Thanks.
Old 05-17-12, 09:56 AM
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Does the engine rpm remain constant when this happens, or does the engine "buck" too?
Old 05-17-12, 12:51 PM
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Some DYT4000 with Peerless transaxles had a problem with the neutral gear between the transaxle and the pump, it would not engage all the way and would jerk evenually grinding out the gear, I replaced it on one I had. Have a good one. Geo

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