I have a 2001 f150 4.2 with a transmission problem. It goes in all gears with no noise but it slips going into the gears likes the clutch plates are worn but idk how automatics work. Its an automatic so idk if they have a clutch or is it electrical. I droped the plan and there was no metal or anything just normal wear. I also serviced it 10000 miles ago so the fluid nice and red. Put a quart of Lucas and replaced filter but still no change. It drives great but just slips and i dont want to cause more damage driving it... Any suggestions would be great. thanks

 

How many miles on on it?
Are the the original owner?
What do you mean "serviced"? What was done?