Excessive wear at the regulator valve pressure sleeve and low reverse boost pressure.
The Sonnax upgraded sleeve and plug kit restores the hydraulic integrity of the line pressure circuit.
Vehicles with Chrysler A727 and 42-46-47RH/RE transmissions may have problems with slippage in reverse, poor cooler charge at idle, and high or low line control. These complaints are often due to excessive wear at the line pressure plug and sleeve. When this sleeve and plug wears, leakage past the plug prevents the pressure regulator valve from properly controlling line pressure.
Sonnax line pressure plug and sleeve kit 22229-01K restores hydraulic integrity to the circuit. The Sonnax plug increases Reverse boost while the O-ring on the sleeve prevents line pressure cross leaks.
This kit fits Chrysler A727 units with boost tube only and 42-46-47RH/RE units with .200" plug diameters.
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.
November 26, 2004
Topics: Transmission Chrysler A727 Transmission 42RE Transmission 48RE Transmission 46RH Transmission 47RH Transmission 46RE Transmission 47RE Transmission 42RH Transmission A904 TransmissionRead Now
November 14, 2016
Topics: Vacuum Testing Vacuum Test Guides Transmission Chrysler 46RH Transmission 47RH Transmission 46RE Transmission 47RE TransmissionRead Now
September 30, 2005
Topics: Diagnostics And Theory TransmissionRead Now
Contact a Sonnax Parts Distributor.
The regulator valve fails a wet air test at the port indicated. To test, place a small amount of oil into the orificed line port. Follow with low air pressure.