Transmission Parts Chrysler Valve Body Valve / Sleeve

Symptoms:

TCC slip under load
No line rise during TCC apply in 4th
Overheated converter
Loss of lube oil
High line pressure with no indication of boost
No lockup
TCC cycling

Cause:

Excess boost valve bore wear reduces oil pressure to the switch valve, resulting in a partial stroke position, restricting the converter and lube circuits.

Correction:

Sonnax oversized lockup boost valve kit restores the proper pressures to the switch valve and main regulator valve, ensuring proper flow through the converter and lube circuit and correcting line pressure.

42RE, 42RH, 46RE, 46RH, 47RE, 47RH, 48RE, A727, A904

Oversized Lockup Boost Valve Kit
Part No. 22771-19K

'94-Later with boost oil delivery tube

Tooling:

F-22771-TL19
VB-FIX

You need this if... View Instructions Find a Distributor

Chrysler 42-46-47-48RH/RE transmissions are equipped with a lockup boost valve that is prone to wear. When this valve wears, it causes a loss of converter and lubrication flow, which can result in TCC slip and an overheated converter. Lockup boost valve wear also causes excessive line pressure, and line rise during TCC apply or in 4th Gear can be lost. Sonnax oversized lockup valve boost kit, 22771-19K restores the lockup boost circuit pressures. The lockup boost valve kit will correct TCC apply, lubrication and overheat problems, as well as maintain proper line pressure.

Hardcoat anodized aluminum valve combats premature wear
Spring is calibrated to match OE pressure with the oversized valves

Contents

Lockup Boost Valve
Plug Valve
Spring
Spring Retainer

Valve Body Layout

Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.