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Old Mar 17, 2009 | 05:14 PM
  #1  
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SALVY
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E40D Help

Hello: I have problem with Tranny heating up on highway
only after a 15 minute drive or so. OD Indicater blinks
and then tranny shifts hard, banging in lower gears,
after truck cools all shifting is ok street driving.
No codes when checked. sounds electrical or could it be torque converter? anyone had this happen, or cure?
 
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Old Mar 17, 2009 | 09:00 PM
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Mark Kovalsky
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If the OD light flashed there are codes. You need the codes to diagnose the problem.
 
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Old Mar 18, 2009 | 10:38 PM
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It could also be a mechanical problem that for some reason is not storing a code. Could be a bad torque converter.
I can't give you a definate cause though, sorry. So many things can go wrong it's just hard for me to say.
 
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Old Mar 19, 2009 | 09:31 AM
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Mark Kovalsky
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But it DID store a code. When the OD light blinks a code is stored. It's in there, it takes the right tool to be able to read it.
 
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