HVAC Unit Removal and Installation

SRS components are located in this area. Review the SRS component locations and the precautions and procedures before doing repairs or service.

NOTE:

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	Detailed information, notes, and precautions
	Torque: N·m (kgf·m, lbf·ft)
	Replace

	Detailed information, notes, and precautions
	Torque: N·m (kgf·m, lbf·ft)

	Torque: N·m (kgf·m, lbf·ft)
*1	For some models

1.	12 Volt Battery Terminal - Disconnect

2.	A/C Refrigerant - Recover (With A/C)

3.	Engine Coolant - Drain

4.	A/C Lines - Remove (With A/C)

NOTE: Take care not to damage or bend the fuel lines or the brake lines.

5.	Heater Hoses - Remove

NOTE:

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.

Note the layout of the hoses.

6.	Heater Unit Mounting Nut - Remove

NOTE: Take care not to damage or bend the fuel lines or the brake lines.

7.	Dashboard/Steering Hanger Beam - Remove

8.	Rear Center Ventilation Duct - Remove (For some models)

9.	Drain Hose - Disconnect

10.	HVAC Unit - Remove

11.	All Removed Parts - Install

Install the parts in the reverse order of removal, and note these items:

Do not interchange the inlet and outlet heater hoses, and install the hose clamps securely.

Make sure that there is no coolant leakage.

Make sure that there is no air leakage.

Make sure that there is no refrigerant leakage.

Do the 12 volt battery terminal reconnection procedure.

Refill the radiator with engine coolant, and bleed the air from the cooling system.

A new O-ring should be used at each fitting. Prior to installation, apply a thin coat of the same refrigerant oil used in the A/C compressor. Be sure to use the correct O-ring for refrigerant types to avoid leakage.

Charge the system with the specified amount of refrigerant.