HELP,
My transmission is "falling" out of 5th gear and stays stuck in 4th gear. While it is in 4th gear only, it does not have reverse. When this happens, the truck throws the "Shift Range Limited" code. So far, I can fix the problem by letting it cool down (usually over night), or by resetting the codes with my Banks PDA.
While in 4th gear after it has happened there is no slip according to the PDA. In fact I have driven up to 40 miles to get the truck home, and end up going about 60 mph to keep the engine RPM from being right on redline. The transmission does not get hot when this happens, it is just like it is in 4th gear. There is no excess slip in 5th gear under normal operations.
I think every time it has happened, it has been during a "soft" acceleration (the first time it happened was using cruise control), it has happened subsequently during a lane change with a mild acceleration. It has always happened at highway speeds, never driving around town. It has never happened when I was cracking the whip with the chip.
It has been to a local transmission builder, and they are stumped. When they dropped the pan, it was BEAUTIFUL inside there was nothing in the oil indicating mechanical problems, all of the solenoids appear to be fine in the transmission. At that time we installed the ATS CoPilot and hoped for the best, but it is still happening.
The truck has 128,000 miles on it with the last 10k on the Banks system, usually at level 6, but the last 2.5K has been in Speed Loader.
Has anyone ever had this type of problem?
My transmission is "falling" out of 5th gear and stays stuck in 4th gear. While it is in 4th gear only, it does not have reverse. When this happens, the truck throws the "Shift Range Limited" code. So far, I can fix the problem by letting it cool down (usually over night), or by resetting the codes with my Banks PDA.
While in 4th gear after it has happened there is no slip according to the PDA. In fact I have driven up to 40 miles to get the truck home, and end up going about 60 mph to keep the engine RPM from being right on redline. The transmission does not get hot when this happens, it is just like it is in 4th gear. There is no excess slip in 5th gear under normal operations.
I think every time it has happened, it has been during a "soft" acceleration (the first time it happened was using cruise control), it has happened subsequently during a lane change with a mild acceleration. It has always happened at highway speeds, never driving around town. It has never happened when I was cracking the whip with the chip.
It has been to a local transmission builder, and they are stumped. When they dropped the pan, it was BEAUTIFUL inside there was nothing in the oil indicating mechanical problems, all of the solenoids appear to be fine in the transmission. At that time we installed the ATS CoPilot and hoped for the best, but it is still happening.
The truck has 128,000 miles on it with the last 10k on the Banks system, usually at level 6, but the last 2.5K has been in Speed Loader.
Has anyone ever had this type of problem?
.