service action 10b17
#32
09-16-2010, 09:35 PM
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I can clarify. New shift strategy:
Running unloaded, shifts are quicker resulting in less reduction in power/accel. as you gain speed. Passengers in the truck generally used to get pinned back in the seats but during a shift everyone's head would ease forward while power to the wheels was interrupted and then the head would go back to the seat when the power returned. Not a big deal unless you want to gain speed quickly.
Running with a load (trailer, probably most noticeable with a trailer of over 4K), shifts are firmer in feel and collecting speed happens with a much better feel. The gears (2,3,4) grab harder and makes you feel like you are in more control.
My whole post here is pretty much based on how I drive and like to feel the powertrain. I assume that many of you guys would have different opinions. I'm just communicating the 1 thing that I noticed with the new tune that was most significant to me. 10 HP is no big deal, 65 lb/ft of torque is cool but the transmission shifting brings it all together for me.
Running unloaded, shifts are quicker resulting in less reduction in power/accel. as you gain speed. Passengers in the truck generally used to get pinned back in the seats but during a shift everyone's head would ease forward while power to the wheels was interrupted and then the head would go back to the seat when the power returned. Not a big deal unless you want to gain speed quickly.
Running with a load (trailer, probably most noticeable with a trailer of over 4K), shifts are firmer in feel and collecting speed happens with a much better feel. The gears (2,3,4) grab harder and makes you feel like you are in more control.
My whole post here is pretty much based on how I drive and like to feel the powertrain. I assume that many of you guys would have different opinions. I'm just communicating the 1 thing that I noticed with the new tune that was most significant to me. 10 HP is no big deal, 65 lb/ft of torque is cool but the transmission shifting brings it all together for me.
I'm definitely going to have the reflash done before I leave for a 2200 mile trip to SC in a few weeks. I think I'm going to wait about another week or so though... need to get some real MPG numbers now that I'm over the 1k mileage mark. Then I'll see how much better it is after the retune... even 2% will be nice driving that far.
#33
09-17-2010, 07:18 AM
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Had mine done last night. I didn't schedule the service. I was near the dealership so I just pulled into the service area. They asked what I needed, told them I wanted the new flash. They said, "No problem, have a seat in the waiting area." 40 minutes later I left with the new tune. I had about 1600 miles on the truck as of last night.
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