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Ask Chris (aka- Moose) Your Own Question
Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Transmissions
Satisfied Customers: 1726
Experience:  16 yrs. experience with auto, manual, & CVT drivelines
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It is not shifting into higher gears, the speedometer is

Customer Question

it is not shifting into higher gears, the speedometer is jumping. it seems to do it more when it has not been ran over night. I put a new out put speed sensor in it. I just had the trans rebuilt a couple of weeks ago.
JA: How old is the transmission? Have you checked the brake switch?
Customer: I think the brake switch is going bad, I had problems with it awhile back
JA: What is the model/year of your Dodge?
Customer: 03 dodge ram 2500 4X4 cummins
JA: Are you fixing your Ram yourself? What have you tried so far?
Customer: I have cleaned the connectors and replaced the out put sensor
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 9 months ago.
Category: Transmissions
Expert:  Nate replied 9 months ago.

I would check all the wiring to the output speed sensor and make sure the connection at the sensor is tight. It may even need and new connector wired onto the end of the wiring harness for the output speed sensor

Customer: replied 9 months ago.
The speedometer jumps while the truck is in drive but not moving
Expert:  Nate replied 9 months ago.

Do you have access to a automotive scan tool that you could observe the speed sensor data while driving?

Expert:  Nate replied 9 months ago.

What was the issue with the transmission before it was rebuilt?