Join Date: Feb 2009
Location: Amarillo, Tx
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4R100 Hard Shifts and Solenoid Noises
The trans started shifting hard right after I swapped engines.. And later I noticed noises coming from the solenoids.
So I rebuilt the valve body with Sonnax parts and changed the filter and fluid.. fluid was changed twice so far.
As for the solenoids, when I shut the truck off I hear the solenoids tingling I guess you would call it.
The shifts are hard about 80% of the time and the OD light is not flashing on and off and no advanced DTCs are found.
Thanks in advance.
2000 F-250, 6 SPD, 4x4, SCLB, 6" Superlift
36x13.50" IROKs w/ DC-1 Dick Cepek 16x10 Wheels
7" Mitre cut stacks, 4 Position F-5,Tymar,HPX line....Pretty much nothing..