Skip the auto shop - Our mechanics make house calls

Q: Shuttle and hard shifting

asked by on

Description of Problem: I have an 2002 Dodge 2500 diesel automatic. The transmission was rebuilt 14k ago and now it is shuttle shifting between second and third. Sometimes it feels like short shifts where rpms barely move. The previous owner had an edge comp box in it when trans was built then took it out. It also has a 750 hp torque converter

My car has 167000 miles.
My car has an automatic transmission.

It sounds like your transmission is having a problem with one of the inputs, which helps it determine when to shift. It could be a hydraulic problem, or a problem with one of the solenoids as well. Start by checking the transmission fluid level and condition, then scan the engine and transmission control modules for fault codes, to see if anything related comes up. Correct the fluid level or change the fluid if necessary. If any faults are found, they should be thoroughly diagnosed, and if no faults are found, then the issue could be hydraulic. If the issue is hydraulic, then there may be an existing warranty on the rebuilt transmission, in which case it would need to go there to be fixed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Sluggish when starting from braking position and when going uphill

Hey there. If your truck is in limp in mode, the PCM (powertrain control module) believes there is something wrong and it is attempting to protect itself. The place to start is connecting a scanner to your truck to read...

Q: Power steering is very hard at low speeds and in reverse.

Sounds like the power steering pump valve is failing or the pump veins are worn and causing aeration of the power steering fluid making the system not function at low engine speeds. Try putting the transmission in low and turning...

Q: Truck needs new Power Train Control Module

Hello. For a problem like this one, the only other option you have other than installing a new Powertrain Control Module (PCM), is to get an aftermarket or used PCM from a junkyard, which will cut down cost. However, the...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...