Engine torque
After the engine in our '09 V10 6.8L F250 'sploded 3 days ago, we ended up with a new-to-us replacement '12 GMC 2500HD that we were able to find on very short notice. The V10 6.8L was rated 362HP w...
Forum Discussion
myredracer wrote:Lynnmor wrote:Around 4K is about all I can remember. It was kicking into a lower gear and up to around 5K at times but that was on inclines that weren't as steep. Like the F250, I thought if I slowed down on steeper hills and pushed the peddle to the floor it would kick into a lower gear but it wouldn't and I was stuck with lower rpms and less power.
Maximum horsepower is at 5400 RPM, how close to that were you running when you couldn't hold the desired speed?
Not sure what sensor(s) makes the tranny shift? Air flow or... ?? Maybe a sensor needs cleaning or an adjustment is needed on something?
Do you recall what rpm you were spinning in the V10? I wonder if the V10 happened to be geared perfect for the Coq and the GM 6 spd is stuck at a less than ideal rpm (4k). Less torque makes it more crucial to be perfectly geared.
Also, is this only during the steeper hill (8% one at the snowshed), or at the 6% hills as well?
