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Discussion Starter #1
I have a P38 4.6 HSE fitted with a ZF4HP24 Auto Box and it has the following problem. When selection Drive 'D' the vehicle does not move, however if you select 1st manually the vehicle can be driven and once over 20kph you can select D and the transmission selects gears normally, but if you travel below 20kph the transmission drops back into neutral. A new transmission ECU has been fitted, the valve body has been checked for cracks and the solenoids are all working. The selector cable has been adjusted correctly. Oil and filter changed, old old was still red and no burn smell. Is there anything else that could be causing this problem? :doh: Any help will be most welcome
 

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Discussion Starter #3
Solution to the problem with the Transmission has been solved, Ashcroft transmissions have a FAQ on there web site and the problem has occured before and the clutches need to be replaced.
 
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