Toyota Tundra. Manual — part 2448

4. DISCONNECT DISCHARGE HOSE

a. Remove the bolt and disconnect the cooler refrigerant discharge hose from the cooler compressor.

Fig. 252: Locating Discharge Hose Bolt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Remove the O-ring from the cooler refrigerant discharge hose.

5. DISCONNECT SUCTION HOSE

a. Remove the bolt and disconnect the cooler refrigerant suction hose from the cooler compressor.

b. Remove the O-ring from the cooler refrigerant suction hose.

Fig. 253: Locating Suction Hose Bolt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

6. REMOVE COOLER COMPRESSOR ASSEMBLY

a. Disconnect the connector.

b. Remove the 3 bolts, nut, cooler compressor and No. 1 compressor stay.

NOTE:

Seal the openings of the disconnected parts using vinyl tape to
prevent moisture and foreign matter from entering them.

NOTE:

Seal the openings of the disconnected parts using vinyl tape to
prevent moisture and foreign matter from entering them.

2009 Toyota Tundra

2009 HVAC Air Conditioning - Tundra

Fig. 254: Identifying Cooler Compressor, Bolts, Nut And Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

DISASSEMBLY

1. REMOVE COOLER BRACKET

a. Detach the 2 clamps.

b. Remove the screw and the cooler bracket.

Fig. 255: Identifying Cooler Bracket Screw And Clamp
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2. REMOVE MAGNET CLUTCH ASSEMBLY

a. Clamp the cooler compressor in a vise.

b. Using SST, hold the magnet clutch hub.

SST 09985-00270

c. Remove the bolt, magnet clutch hub and magnet clutch washer(s).

HINT:

There is no set number of magnet clutch washers since they are used for adjusting.

2009 Toyota Tundra

2009 HVAC Air Conditioning - Tundra

Fig. 256: Removing Magnet Clutch Bolt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

d. Using a snap ring expander, remove the snap ring and the magnet clutch rotor.

Fig. 257: Removing Snap Ring
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

e. Disconnect the connector.

f. Using a snap ring expander, remove the snap ring and magnet clutch stator.

Fig. 258: Removing Snap Ring
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NOTE:

Do not damage the seal cover of the bearing when removing the snap
ring.

2009 Toyota Tundra

2009 HVAC Air Conditioning - Tundra

INSPECTION

1. INSPECT MAGNET CLUTCH ASSEMBLY

a. Check the magnet clutch operation.

1. Confirm that the magnet clutch hub and magnet clutch rotor lock when the battery positive

lead is connected to terminal 3 of the magnet clutch, and the negative lead is connected to the
ground wire.

If the operation is not as specified, replace the magnet clutch assembly.

b. Measure the resistance.

c. Measure the resistance between terminals 1 and 2.

Standard Resistance:

65 to 125 ohms at 20°C (68°F)

If the resistance is not as specified, replace the cooler compressor assembly.

Fig. 259: Measuring Resistance Between Terminals 1 And 2
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

REASSEMBLY

2009 Toyota Tundra

2009 HVAC Air Conditioning - Tundra