Honda 2004 Odyssey Service Manual page 1674

Rear Evaporator-Heater Unit Removal and Installation
1. When the engine is cool, drain the engine coolant
from the radiator (see page 10-13).
2. Recover the refrigerant with a recovery/recycling/
charging station (see page 21-56).
3. Remove the rear blower unit (see page 21-142).
4. Remove the clips (A) and the rear heater duct (B).
A
5. Remove the bolt from the bracket (A). Disconnect
the suction line (B) and receiver line (C) from the
rear evaporator. Slide the hose clamps (D) back,
then disconnect the inlet heater hose (E) and the
outlet heater hose (F) from the rear heater unit.
Engine coolant will run out when the hoses are
disconnected; drain it into a clean drip pan. Be sure
not to let coolant spill on the electrical parts or the
painted surfaces. If any coolant spills, rinse it off
immediately. Plug or cap the lines immediately
after disconnecting them to avoid moisture and
dust contamination.
13 N·m
(1.3 kgf·m, 9.4 lbf·ft)
D
A
B
6 x 1.0 mm
9.8 N·m
(1.0 kgf·m, 7.2 lbf·ft)
A
B
E
F
C
31 N·m
(3.2 kgf·m, 23 lbf·ft)
6. Remove the clip (A), then lifting the upper duct (B)
up. Disconnect the connector (C) from the rear
mode control motor. Remove the mounting bolts
and the rear evaporator-heater unit (D).
B
A
D
7. Install the unit in the reverse order of removal, and
note these items.
• If you're installing a new evaporator, add
refrigerant oil (DENSO ND-OIL 8) (see page 21-6).
• Replace the O-rings with new ones at each fitting,
and apply a thin coat of refrigerant oil before
installing them. Be sure to use the correct O-rings
for HFC-134a (R-134a) to avoid leakage.
• Immediately after using the oil, reinstall the cap
on the container, and seal it to avoid moisture
absorption.
• Do not spill the refrigerant oil on the vehicle; it
may damage the paint. If the refrigerant oil
contacts the paint, wash it off immediately.
• Do not interchange the inlet and outlet heater
hoses. Install the hose clamps securely.
• Refill the cooling system with engine coolant (see
page 10-13).
• Make sure that there is no coolant leakage.
• Make sure that there is no air leakage.
• Charge the system (see page 21-58).
C
6 x 1.0 mm
9.8 N·m
(1.0 kgf·m, 7.2 lbf·ft)
21-143