Quote:
Originally Posted by hatzie
It's all electronic including the go pedal.
Hit the tow-haul button. The shifting behaviour changes.
I often put the shifter in 3 when I'm towing something heavy to keep my 4L80E from hunting or lugging the engine by staying in 4th gear when it really should downshift.
If she figures it should be in a lower gear and it isn't going there pull the lever down a notch and drive.
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Okay, thanks
She
says she had it in tow/haul mode. The problem seems to be moderate hills on the interstate. "Drive" seems to be either direct or overdrive without any way to control that. Shifting down to 3 would probably be too slow or too much of a shock going down two gears at a time.
But then I'm not there driving it so I don't really know ??? I drove it to Billings and back empty to get some service done and it was fine.
On our old Suburban 350/700r4 of course I just ran in D instead of O when towing. I did find it would slow way down on hills and then shift down and speed up and then shift up and slow down again, so I would just pull it down to 2 at about 45 mph and just go comfortably up the hill without much throttle. In the mountains so that was plenty fast enough.