Toyota Sienna Service Manual: Removal

1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

2. REMOVE ENGINE UNDER COVER NO.1

3. DRAIN AUTOMATIC TRANSAXLE FLUID

(a) Remove the drain plug and gasket, and drain the ATF.

(b) Install a new gasket and the drain plug.

Torque: 49 N*m (500 kgf*cm, 36 ft.*lbf)

4. REMOVE AUTOMATIC TRANSAXLE OIL PAN SUBASSEMBLY

(a) Remove the 18 bolts, oil pan and gasket.

(b) Remove the 2 magnets from the oil pan.

(c) Examine particles in the pan.

(1) Collect any steel chips using the removed magnets. Look carefully at the chips and particles in the pan and on the magnets to see the type of wear which might be found in the transaxle.

Result: Steel (magnetic): Wear of the bearing, gear or plate Brass (non-magnetic): Wear of the bearing

5. DISCONNECT TRANSMISSION WIRE

(a) Disconnect the 7 shift solenoid valve connectors.

(b) Remove the bolt and lock plate, and disconnect the ATF temperature sensor.

6. REMOVE TRANSMISSION WIRE

(a) Disconnect the transmission wire connector.

(b) Remove the bolt and transmission wire.

(c) Remove the O-ring from the transmission wire.