Solenoid pressure regulator valve:
The purpose of the solenoid regulator valve is to limit the pressure going to the solenoids. The spring is calibrated to prevent solenoid feed pressure from exceeding a predetermined PSI, no matter what main line pressure is. This is necessary to prevent more fluid from being fed to the solenoids than they can effectively regulate and limit what max line pressure output is.

If the pressure feeding the solenoids is too high or too low, their output will also be too high or too low. As a result, shift quality complaints and codes can occur along with low or high main line pressure.

Lube pressure regulator valve:
The valve body incorporates a lube pressure regulator valve that supplies oil to the bushings and to the required lubrication areas of the transmission. The lube regulator valve receives its supply oil from the line pressure circuit. The lube regulator valve steps down the line pressure to a level better suited for the lube circuit and the oil cooler. Consequently, when the lube regulator valve bore wears, the lube oil pressure drops in the lube circuit causing bushing wear.

The other issue is that wear at the lube regulator valve creates a loss of TCC release pressure. This allows the TCC clutch to drag or to be partially applied during coast down maneuvers. As a result, with the TCC clutch partially applied there is reduced amount of slippage in the torque converter which will cause a rough shift or a clunk during coast downshifts.

This solenoid lube regulator kit includes the tools and parts required to oversize the bore for the solenoid and lube pressure regulator valve.

Corrects/Prevents/Reduces:

Persistent coast-down clunk when hot
Gear ratio codes P0731, P0732, P0733, P0734, P0735 and P0729
Shift or solenoid performance codes P0781, P0782, P0783, P0784, P0829 and P0741
Long and soft shifts
Premature bushing failure

Features:

No expensive holding fixture required
Reaming spacer included to allow the use of the same reamer for both bores

Includes:

Reusable high-quality USA-made steel reamer
(2) USA-made heat-treated guides
Solenoid pressure regulator reaming spacer
Oversized USA-made hardened steel solenoid pressure regulator valve
Oversized USA-made hardened steel lube pressure regulator valve
(2) Springs

Fitment:

2006-14 GEN1 Ford vehicles equipped with 6R60, 6R75, 6R80 and 6R100 transmissions
6R80 GEN2 1/2015-2020 with or without *Start/Stop
This kit DOES NOT FIT ZF6HP21, ZF6HP28 or ZF6HP34 with GEN2 valve bodies

NOTE:
Start Stop is an engine management feature that shuts off the engine during periods where it would otherwise be idling.