Question about 1994 Dodge Ram 2500

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Transmission will not shift out of 1st gear

I recently bought this truck. shifting was very slugish. almost none.
I changed the filter and fluid in it, it seam to help with the shifting setting still but going down the road it will not shift. its setting a code 37. and up on first purching this it had a bad grown and converter shutter. not to bad now but still wont shift even manually.

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  • Ram Fan 99 Jan 13, 2009

    I have a 1999 Dodge Ram 1500. I was sitting on the freeway/parking lot going approximately 2 to 4 miles an hour for approximately 30 miles. When the traffic broke, I attempted to accelerate, but my truck would not shift past 1st gear. After letting it sit for 15 minutes I was able to get the truck to shift by putting it in overdrive. Now it will no longer allow me to shift past 1st gear. I have had no other signs of transmission problems.

  • Anonymous Mar 26, 2014

    truck stays in overdrive when i come to astop shutters real bad i can pull it down into second gear and it is fine truck shifts fine thru the gesrs untill i stop after it reaches operating temp it down shifts fine fluid and filter have been changed truck sit for 2 years it is a 5.9 automatic 4x4



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Im not sure what the code 37 definition is,as im not at work with access to code definitions,however,that trans in your truck is a variant of some type,of the A 518 model,4 speed overdrive.The year model,1994,that trans could be either a 48 RH or 48 RE.RH stands for RWD Hydraulic,and RE is RWD Electric .On the driver side of the trans,you should see a connector going straight down into the trans.If that connectror is a big,round,8 wire connector,then the trans is the RE,or Electronic model.If the connector is a small,oval,2 wire connector,then the trans is an RH or Hydraulic model.The RE/ Electric model has a governor pressure sensor and solenoid mounted on the valvebody,and are very problematic,and most times replacing with new solves the problem.When they act up,you get NO upshifts.If the trans is the RH or Hydraulic trans,then it has a mechanical governor controlling upshifts,and that would be an internal trans problem.Good luck.

Posted on Jul 08, 2008


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