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Jmyers

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  1. The switch on the stalk does allow you to select between normal O/D operation, Tow/Haul Mode and O/D Off. I do like to operate under load using the Tow/Haul mode for lockup and shifting characteristics. I have wondered about the switch or wiring since it is so intermittent. The temp light flashes on and off so quickly that you can rarely hear the ding and look down in time to still catch it on. One thing that I read on another forum is that there is a check valve near the radiator that can malfunction and clog not allowing proper flow and also allows fluid to drain back and out of the converter. I can say that if I haven't driven it in two or three days it does take some time to get her rolling after putting it in gear like it has drained back.
  2. I have an 07 Dodge dually with 5.9L and automatic tranny. It seems worse when it's hot outside and may not even do it at all in cooler months, but when running highway speeds, 70+ MPH, in the warmer months it will kick in and out of OD and sometimes the tranny temp light comes on and dings. When it does this the Tow/Haul and OD Off indicator in cluster changes. Of course it's cooler now, but getting ready to tote toy hauler to Arkansas from Texas and take it to tranny shop and they see no codes and it's shifting fine. Thoughts?
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