Hi, My dodge ram will not shift after it gets to around 30mph, when it reaches that speed at acts as if i put it into neutral. If i slow to under that, the transmission kicks in until 30mph again. If i keep in in 2nd it will go passed 30mph until i shift into drive then its like i put into neutral again. (it is an automatic, with the 4.7L)
First off, a scan tool bought from a auto parts store will not give you the info needed from your trans, yes it could be a shift sensor that is in your throttle body in your trans, could be a stuck valve in the throttle body, the trans could be in limp mode, for a code to be set, the problem has to happen 3 times before a code to be set
It may not be a transmission problem. have you checked for fault codes to make sure it is not in limp mode? limp mode keeps vehicle from accelerating properly because the ECM has put the system at a limited setting to keep the engine running but not to its full potential.
p0700 is a trans code. will your scan tool access the trans module? if so it will be more specific to the problem that is setting the p0700 in the ECM. since it has set a p0700, the problem could be as simple as a shift solenoid. it also could be a TCM or a bad clutch pack or worn bands in trans not catching/ slipping.
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SOURCE: I HAVE 1999 DODGE TRUCK.
Sounds like dirt in the transmission may be causing the shift points to not work properly.
Is this the problem you are having?
If it is, then I would say that one should have the fluid changed out of the transmission at a local shop.
If this does not solve the problem, then the solution may be a rebuild of the transmission.
SOURCE: 1992 Dodge D150 2x4 Automatic
You remove and clean the valve body
No luck,you rebuild the unit
I used to own a trans shop
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Ive changed the filter and yes, i used the correct fluid,
I checked codes, started with code p0300, truck has sat for some time, so i reset all the codes, drove it around for about 30-45, still would not shift passed 30 mph, check engine light came, when i got home I check the codes and got P0700, and nothing else. One thing i noticed, it feels like it is taking a long time to shift from 1st to 2nd also, and its not consistant.
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