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I have a 2005 F350 4x4 dually with a torqshift transmission and 8100 miles. It started today to have a severe jerk(almost as hard of a downshift to skid the rear tires) as you slow down from 30 mph to 20 mph. It makes no difference whether one is braking or just slowing down to 20mph. Any help appreciated.
When I bought my 2003 truck, At about 2500 miles it started doing what you describe, Really hard down shift. Sometimes when I'd put it in reverse , nothing then bang. I took it right in and they replaced the tranny. Since mine was one of the very first 2003's with a tourqe shift, it had a big Orange sticker that instructed the service tech not to open the trany but to just send it back. Which they did.
My replacement tranny went 80,000 miles before I sold the truck, 2-3 times a week it had 12,000lb trailer hooked up to it. It performed flawlessly.
Got the truck back today and it was a defective computer that had to be reset. Not quite sure about that but it is running alot better and the hard downshift is fixed.
I had a multitude of problems with my '05 torqueshift before I had 7,000 miles on it. Numerous visits to the dealer and they could not fix until I contacted Ford corporate and met with and engineer. He reflashed the PCM and the bugs went away. 11,000 miles later and all is still good.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.