Transmission Shifting Problems
Sorry in advance for the long post, but I want to be thorough. I have an '03 2500 4x4 with the 5.9 Turbo and a 48RE transmission. Truck has just over 155,000 miles on it. Truck itself is stock, but have recently replaced balljoint, PS pump, water pump, exhaust, several axle/driveshaft seals and U-Joints.
Started having a problem with the transmission shifting over the last 6 months or so. Initially, it would lose 1st gear when starting out from a stop...seemed to be during hot or cold weather. Then the shifting problems started getting more and more pronounced until proper shifting is the rare occurance.
Here are the symptoms:
*Loses 1st and 2nd gear just about all of the time.
*Truck basically starts out and stays in 3rd gear unless traveling at speed and enters 4th gear (and OD) fine.
*When slowing, truck does not downshift into 2nd or 1st.
*When starting from a stop, truck will not shift into 1st or 2nd. Can use shift lever to put truck into 2nd most of the time, but rarely can get into 1st.
*Sometimes feel the transmission kick when stopped like it is hard shifting into 1st, but does not stay in 1st most of the time.
*If I shift into Neutral, then into Drive, it sometimes stays in 1st or 2nd, but rarely.
*Every once in a while, truck will start shifting fine. I routinely drive the truck for work throughout the day and when it shifts right, it continues to shift right until the truck is shut off for any length of time. No rhyme or reason to when it works.
Just changed out fluid and filter and did not seem to have any affect. When changing fluid/filter, did not see anything in the pan except for filings caked onto the magnet. No other pieces observed in the pan. Exposed internals of the transmission seemed in good condition (nothing apparently broken, cracked or work).
I am getting ready to call a few local transmission shops (hate the pricing of the dealerships) and was hoping to try and get a handle on the problem first. Especially if its something that I can maybe fix myself. Any advice you all can give will be greatly appreciated.
Thanks in advance.