2003 ram 2500 48 RE trans shift indicator show's park and neutral

[BentSteel]

this only happens every few 100 miles, start's out in 2nd if down shifted into 1st then will shift to third no over drive indicator . trans works fine if if shift indicator is lit up through all positions. replaced old trans solenoid with new Bd diesel solenoid and transducer wiring upgrade 45,000 mile ago, does any one think this is the solenoid sticking or is it something in the wiring, truck has 197,000 mile on it now, trans fluid changed ever 50,000 mile since new still all stock

 

[cerberusiam]

The range sensor is responsible for showing manual gears on the dash. If it malfunctions it may influence shifting.

 

[BentSteel]

Gear Selector Indicater Repair
For about 6 months or so ago, the transmission indicator on the dash has been problamatic. Getting it to the Park position was tricky, and required me fiddle with selector lever a bit; shove it in and out of park a couple of times. The transmission was firmly in park, and performed perfectly. It was the indicator that was the problem.

Doing a web search, this apparently a common problem, starting with about the '03 models. Unfortunatly, finding a common solution was a lot more difficult.

The most common answer was to replace the selecter switch in the trans. This is a somewhat involved process, and was pretty close to $300 if you did the work yourself. And, that didn't always work! People spent all that money for nothing.

I decided to start with the simple stuff first - adjusting the cable.

The factory service manual tells you to remove the dash pads and the bottom of the steering column cover. Then disconnect the cable at the bottom. Make the adjustment. Then put it all back together. Fortunatly, that isn't necessary.

- put the truck in park, and set the brake. No need to jack it up, or put it up on a hoist.
- With a good light, lay on your back and look up under the dash board.
- Follow the transmission cable up from the firewall.
- The first thing you come to is the adjuster mechanism. The adjuster locking tab is easy to see, it's white plastic and everything else is black plastic.
- Use a medium sized flat bladed screwdriver, and insert it into the slot that looks like it's designed for that screwdriver in your hand (because it is).
- gently turn the screwdriver, and pop the adjuster tab out of it's slot.
-- if it's really tight, play with the gear shift lever a bit to remove tension.
- with the locking tab released, push up on the gear shift level to make sure it's properly seated in Park. Do not push down, or try to move it out of park.
- push the white locking tab back in to place.
- Check to see if you still have the problem.
-- if you do, it's probably the expensive part in the transmission.
-- if you don't, it's fixed! Pat yourself on the back, and have a celebratory beer.
- It takes longer to read this than it does to fix it.

Worked for me, anyway. found this on diesel truck forums- will let you know if this work's out for my for my trans might be a few week's working 12 hour shift's get back to you all soon thank's..

 

[BentSteel]

The range sensor is responsible for showing manual gears on the dash. If it malfunctions it may influence shifting.

That's where the problem was, range selector/safety neutral switch : leaked trans oil into the wire harness plug in. problem solved thank you