3.9L v8, 5r55s, 4th and R shift erratically when @ temp, Fine when cold on Lincoln LS

Submitted by luceri · May 29, 2025

Published by RepairPal

Problem overview

Very hard shifting may be noted after the transmission reaches operating temperature. Most commonly this occurs in the higher gears and reverse. Replacement of the transmission may be recommended to correct this concern.

33 people reported this problem

15 comments

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Lincoln LS vehicles with this problem

5 model years affected

Average mileage: 102,473 miles

(45,000 - 185,000)

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