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Old 02-13-2014, 06:25 PM
radar710 radar710 is offline
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Default Transmission/Shifting problem

I have a 2002 Ram 1500. My Transmission while cold will either go into limp mode and if not limp mode it will not hit overdrive. If i start my truck on a cold day and let it run for about 15 min it is fine. After i have driven it and it warms up i stop and shut it off and start again it will come out of limp mode and shift just fine. i have been told the Solenoid pack but i was wondering if there are any other areas i can check first that are cheaper. i would hate to replace and it not be the issue. Any suggestions? the only code i have is P0700.
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Old 02-14-2014, 08:55 AM
TransEngineer TransEngineer is offline
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You have a Transmission Control Module (TCM) that is separate from the Engine Control Module (ECM). P0700 is a "flag" code that sets in the ECM, to tell you there is some other fault set in the TCM. You need a scanner that can read faults from the TCM (such as a dealer scan tool). You need to find out what trans fault is set; that will guide you on where to find the problem. So get the trans fault code(s) and post them here, then I can tell you how to diagnose it.

As far as not shifting into OD when cold (or perhaps it's simply not engaging the Torque Converter Clutch), that is normal. Trans will usually shift and engage the TCC normally after it warms up a bit (typically after 1-3 miles of driving).
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