Compression Ignition Addict
Join Date: Apr 2010
Location: All over the dang place
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Steve, I'm pretty sure you're incorrect that you are manually selecting and running in fourth. The Tow/Haul selection does not select a different gear when it is in use. It holds each (all 5 gears) longer and higher all directly related to load, throttle position and speed. Also the the torque converter lock-up points come in differently. It does not matter what "mode" you are running, they both will utilize 5th gear or whichever gear is appropriate for the current throttle position and speed with absolutely no influence from either mode. The transmission does not shift and rpm's do not not change when either mode is selected. Your owners manual will explain this also in much more detail as to speeds etc.......
Also, just a thought that came across my mind, there are quite a few posts on here varying from cold starts/surging to trans related questions that say that 4th isn't used hardly ever under most driving conditions. I know on mine I experience 3 shifts and then my converter locks up. The posts are out there explaining it in better detail, this paragraph was simple a recollection of my memory.
More torque pleeze
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