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off-topic....2001 3/4 ton Dodge Cummins trans question

D

DENNIS MIN

Member
All,

Looking for some advise here. Got the truck new, has about 96k miles on it. The auto transmission seems to "hang" in second gear around 35-40 mph. I really have not done anything yet, just pondering what to do to fix this. The problem shows up whether warm or cold.

Thanks in advance for all polite replies,

D.
 
I have an '06 that used to do the same thing. There is a small plastic valve body that warps or cracks and needed to be changed. Take it to an independent shop, not one of the so-called transmission rebuilders...they are good at selling stuff you don't need.
 
How many speed is the Transmission? Will you be hauling a heavy trailer? The reason I ask is because if you intend to pull much, you may want to consider putting a heavy duty torque converter in. I had a 1990 and it also had the lag you speak of, but that was a 3 speed. I had the shift timing changed so that it stayed in 2nd longer before shifting and also a heavy duty torque converter.... no more problems! This made the trailer-pulling much better.
I just got rid of a '98 5-speed standard shift because I could not keep 5th gear in it. I hope you have better success with your Dodge. ( I now have a '07 6-speed standard). so far-so good! my wife drives a '98 automatic diesel and it has always been dependable.
hope it is just a matter of adjustment.
Cal
 
Cal,

Thanks for the response. The trans is a 3 speed with overdrive. This problem has just started becoming noticeable. It did not act this way before.

D.
 
Flush out the transmission. Clean out the trans cooler lines. Spray them out the opposite way the trans fluid flows. New filter and use atf +4. That will prolong the junk dodge trans from taking a dump! I have done this many times and all dodge fullsize automatics. It will clean them out and help. Good luck.
 
There is a three wire harness on the front of the engine. It goes to the revolution counter. It is part of the system that tells the electronic controlled transmission when to shift. That harness is close to the fan belt. It may have been abraded by the belt.
 
Start with the simple first...crankshaft sensor and the throttle position sensor.
If that does not fix it, take it to a RAM dealer and have them check the program in the computer. There was a recall to check the settings anyway.
There is also a speed sensor in the valve body, but leave that to the experts.
At 150K I called ATS in Co. and have never looked back. They can send you a torgue converter and a HD transmission that will make a truck out of it.
Cost me...but well worth it in fiel mileage and hard pulling work.
 
Start with the simple first...crankshaft sensor and the throttle position sensor.
If that does not fix it, take it to a RAM dealer and have them check the program in the computer. There was a recall to check the settings anyway.
There is also a speed sensor in the valve body, but leave that to the experts.
At 150K I called ATS in Co. and have never looked back. They can send you a torgue converter and a HD transmission that will make a truck out of it.
Cost me...but well worth it in fuel mileage and hard pulling work.
 
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