Mechanos

... yeah, go figure. About 5,000 miles ago (about 75K on the odometer), I changed the tranny fluid & filter and adjusted front and rear bands per the FSM procedure. Shortly after doing this, the tranny has started acting up . When VERY gently acclerating (like when I back out of the driveway, put it in drive and easy off down the street) it feels like the tranny can't make up it's mind which gear to use. It it rapidly shifts from one gear to another and then back again. It'll keep doing this until I give it some more throttle. Once into the throttle more, it acts fine. I recently pulled about 10K lbs through the mountains all the way out to CA, UT and CO and it seems to me like the TC may be getting a little weak, but that seems to be a different problem altogether from the first one I described.

Any ideas?

dieseldork

Have You Tried Resetting The Throttle Position Sensor ? I Had A Problem That Sounded Something Like That And This Took Care Of It

Motorpool

Can you please explain how to reset the throttle sensor? Thanks, Sonny

dieseldork

1.set Parking Brake
2.disconnect Negative Battery Cables On Both Batteries
3. Turn Ignition Key To Run (to Drain Any Remaining Capacitors)
4.let Truck Set For At Least 30 Minutes (this Is The Recommended Minimum)
5.return Ignition To Off Position
6.reconnect Both Batteries And Secure ,not A Timed Event
7.turn Key To Run Position (not Start) And Depress Accelerator Pedal Slowly All The Way To The Floor
8.allow Pedal To Return To Top Position Slowly
9.turn Ignition Switch To Off
10. Release Parking Brake