was getting code p0761, so went to ford dealer and bought a shift solenoid after installing solenoid and new filter, filled tranny with mercon v. no chips in pan and every thing looked good when removing pan o.d. light blinks immediately when engine starts and vehicle stalls in reverse, drive seems to engage very harsh. did not move vehicle o.d. light only came on if o.od. was not turned off before reaching 60 m.p.g. maybe wiring harness?