09 Auto Ranger Strange Shifting
Okay, so I'm going to have the dealer take a look at it, but what do you guys think could be happening here:
- truck has 140,000 kms on it
- tranny was serviced at 50 and 100,000 per recommendation
- transmission seems to be shifting funny - when accelerating down an on-ramp, it will "hiccup" between two gears. Also going up the Hamilton mountain it will grab 4th gear and run like that for the whole climb (even with as little as 1/4 throttle - the only way I can get it to shift is to lift off the gas completely)
- the 4th gear hold happened to me down in the states last weekend as well, I merged out of a rest area and ran to 70 MPH for several miles before I realized it hadn't downshifted to 5th
Based on the maintenance schedule, I should be due for another fluid change in another 10K, but I'm curious if something else could be amiss. I did increase my tire size slightly when I got the new wheels; could this be messing with the computer?