Product Description
Fits: 8L45, 8L90 · 2015-up
Oversized S1/S5 regulator valve for 8L45 and 8L90 valve bodies, 2015-UP, from TransGo. Depending on wear, a valve body may need up to two oversized S1/S5 regulator valves; installation requires the 8L90-S1REG-TK tool kit.
It addresses harsh or delayed reverse engagement, slipping or missing 2-3, 3-4 and 6-7 shifts, coast-downshift clunks on 3-2, 4-3 and 7-6, and transmission control valve error codes P0746, P2723, P0747 and P2724.