I have a 99 F150 SC 4x4 4.6 with auto trans. Has anyone had any mods done to their auto trans to make it shift more 'positively'? When I am driving in the hills, the transmission just doesn't seem to spend much time locked in and the shifting is quite mushy. I think that the sharper the tranny shifts the better. Am I wrong on that?
Stephen
I also prefer a firmer shift. I picked up a SuperChips tuner for my F350 well over a year ago and part of it's software increases line pressures within the tranny and tweaks the shift points. Shifts are much firmer and the TC tends to stay locked up a bit better. My only real complaint is the "delay" in getting out of 1st when I really stand on it. It'll hit almost 5k on the tach, then hang there for a few seconds before it decides to go into 2nd.
I haven't tried customizing the shift points to "fix" this as I don't often get on it that hard, but the ability to do so is built in to the tuner.
I know that on the old turbo 350 trannies you could have the shift kit set up as stiff as you wanted. It was a pretty simple and inexpensive modification. I don't know anything about the tranny in the F150. How about you Transurgeon, know what can be done to stiffen up the shifts?
Stephen
The OTHER Kev> >
yep, a screwdriver and about 30 seconds under the car tweaking the modulator...
These new trannies are too computer oriented to play with now... at least for me.
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