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Transmission slipping

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Old Feb 26, 2008 | 06:05 PM
  #1  
mriplaybass's Avatar
mriplaybass
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Transmission slipping

91 Ranger 4x4 w/4.0

Truck has A4LD tranny w/256k on it. I just took it on a 1400 mile trip and it ran fine. A week after I came home my son said the transmission was slipping. We changed the oil and filter, but no difference. If I start out in 1,2, or D then shift into OD once up to speed, everything is fine. But, if I try to start in OD, transmission slips and engine races. It will eventually get up to speed if I baby it. Reverse works fine. I put in a new pump and separator plate about 18k ago.

 
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Old Feb 27, 2008 | 07:13 AM
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What happens if you switch the OD off & start out in D????
 
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Old Feb 27, 2008 | 08:25 AM
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With that many miles on it, it probably needs some maintenance done on it at a tranny shop.
 
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Old Feb 29, 2008 | 07:53 PM
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This Ranger does not have a switch for OD, there is an OD position on the gear selector. Starting out in D, the truck runs great. I can put it in OD after it is up to speed. If I start out in OD, the engine revs up and the truck accelerates very slowly.
 
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