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Hi
my 4r100 transmission started slipping when changeing down for a day or two, then it let go in all gears, and has a whine noise in all gears now, the transmission was rebuilt last year, is it possible it’s just the torque converter?
it’s not showing any codes,
thanks
Is the OD light on your shifter stalk flashing? If so, you have codes.
What are you using to read codes? It has to be SAE J1850 PWM compatible. Read through the FORScan section in the Tech Folder at the top of this forum for more information.
I will also tag @Mark Kovalsky for you. He is our resident former Ford transmission engineer.
You really don't need codes for this one, The trans needs to come out and get torn down to see what failed. It's possible that it is the torque converter, but not likely.