Quote:
Originally Posted by admranger
What a load of crap from the ZF engineer.
The Allison transmission on my old Chevy diesel dually and diesel pusher motorhome never had this problem. Clearly a design/software flaw and they went to the "they all do this" response as their answer. Horrible response. I had the software update and after that I had the biggest slam ever in a parking garage. It was so bad my passengers thought we'd been rear ended by a truck or something. It was awful.
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I'm with you. My 2000 4.4i drove without a single problem for six months. Then the transmission began to act up even though my driving habits remained the same. I took it to my indy and he replaced the valve body and the problem disappeared.
I'm surprised to see after so many years this is an issue for which there appears to be no consistent solution. I would have thought the underlying cause would have been diagnosed by now.