45RFE (5-45RFE TCM) Dreaded P0700 Code
2002 Dodge Dakota with 4.7L and 5-45RFE TCM.
On my way home last night, I noticed at around 70km/h if I pushed the gas pedal about 3/4 of the way the engine would rev slightly before the transmission would downshift.
I did this a few times to replicate it, which it was, and tried it with overdrive off and it would act wierd. Just as I was getting home, the check engine light came on. Parked it, cycled the key and it popped up P0700 which is a generic code for a transmission malfunction.
I have access to my mechanic's scanner on Monday, so hopefully I can pull more specific codes from the TCM. I know its a generic code, but what kind of things could cause this (I've searched and have come up things like the valve body, solenoid pack, etc.). Is it safe to drive around town with it like this? When I say around time I mean to work, to the store, etc.
I had a transmission service in the winter, which included two Mopar filters and I have always kept the maintenance up on the transmission.
The symptoms I have:
- When cold, normal operation. All gears work, torqe converter locks up, overdrive gears are functional. Pressing overdrive takes the transmission out of overdrive.
- When warm, limp mode. Only uses second and third gear (though today it seemed like it was stuck in third gear for a bit).
I've also noticed over the past few years, the quite frequently when I first start it, there seems to be a delayed engagement between park to drive. If I give it gas, it usually starts to move right away, except when it delays it'll rev to 1500 RPM's and barely move (it would be similar to on a manual leaving the clutch part way in and giving it gas). I know there is a TSB out for this, but as I said I know the filters aren't the suspect onces as they have been replaced twice already.