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Discussion Starter · #1 ·
I have a 2month old rebuilt 4r70 in my f-150. Yesterday, doing about 80, it started slipping on the interstate. I eased it about 1 mile in 1st to a turn around and checked the fluid. After re-starting it i have no gears at all 1,2,d,r. I called a wrecker and got it home. Fluid was not to nasty with little clutch material in it. now i can floor it and the truck does not want to move in any gear. Line pressure in park at 3,000rpm is only 5psi. Any ideas what broke?
 
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