Valve Body; Operation - Chrysler 300M Service Manual

21 - 152 TRANSAXLE
VALVE BODY (Continued)
The valves contained within the valve body include
the following (Fig. 407):
• Regulator valve
• Solenoid switch valve
• Manual valve
• Converter clutch switch valve
• Converter clutch control valve
• Torque converter regulator valve
• Low/Reverse switch valve
In addition, the valve body also contains the ther-
mal valve, #2, 3, 4 & 5 check balls and the 2/4 accu-
mulator assembly. (Refer to 21 - TRANSMISSION/
TRANSAXLE/AUTOMATIC - 42LE/VALVE BODY -
DISASSEMBLY).

OPERATION

NOTE: (Refer to 21 - TRANSMISSION/TRANSAXLE/
AUTOMATIC - 42LE - SCHEMATICS AND DIA-
GRAMS) for a visual aid in determining valve
location, operation and design.

1 - VALVE BODY

2 - T/C REGULATOR VALVE
3 - L/R SWITCH VALVE
4 - CONVERTER CLUTCH CONTROL VALVE
REGULATOR VALVE
The regulator valve controls hydraulic pressure in
the transaxle. It receives unregulated pressure from
the pump, which works against spring tension to
maintain oil at specific pressures. A system of sleeves
and ports allows the regulator valve to work at one of
three predetermined pressure levels. Regulated oil
pressure is also referred to as "line pressure."
SOLENOID SWITCH VALVE
The solenoid switch valve controls line pressure
from the LR/CC solenoid. In one position, it allows
the low/reverse clutch to be pressurized. In the other,
it directs line pressure to the converter control and
converter clutch valves.
MANUAL VALVE
The manual valve is operated by the mechanical
shift linkage. Its primary responsibility is to send
line pressure to the appropriate hydraulic circuits
and solenoids. The valve has three operating ranges
or positions.
Fig. 407 Valve Body—Exploded
5 - MANUAL VALVE
6 - CONVERTER CLUTCH SWITCH VALVE
7 - SOLENOID SWITCH VALVE
8 - REGULATOR VALVE
LH