Air Conditioning and Heater Module Assembly Removal and Installation

WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of HVAC Module Assembly

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedure Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill) , Cooling System Draining and Filling (Vac-N-Fill) . Recover the refrigerant. Refer to Refrigerant Recovery and Recharging . Remove the evaporator tube from the thermal expansion valve. Refer to Air Conditioning Evaporator Hose Assembly Replacement . Remove the heater hoses from the heater core. Refer to Heater Hoses Replacement . Remove the brake pedal bracket assembly. Refer to Brake Pedal Assembly Replacement . Pull back and reposition the carpet. Remove the lower instrument panel (I/P) support brace. Refer to Instrument Panel Center Support Bracket Replacement . Reposition the auxiliary air distribution duct. Refer to Auxiliary Air Distributor Duct Replacement . Remove the instrument panel carrier. Refer to Instrument Panel Carrier Replacement . Disconnect the HVAC module assembly electrical connectors.
1	HVAC Module Assembly Nut (Qty: 5) CAUTION: Refer to Fastener Caution . TIP: Tighten the nuts in sequence. Tighten 9 N.m (80 lb in)
2	HVAC Assembly Module

Callout

Component Name

Preliminary Procedure

Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill) , Cooling System Draining and Filling (Vac-N-Fill) .
Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
Remove the evaporator tube from the thermal expansion valve. Refer to Air Conditioning Evaporator Hose Assembly Replacement .
Remove the heater hoses from the heater core. Refer to Heater Hoses Replacement .
Remove the brake pedal bracket assembly. Refer to Brake Pedal Assembly Replacement .
Pull back and reposition the carpet.
Remove the lower instrument panel (I/P) support brace. Refer to Instrument Panel Center Support Bracket Replacement .
Reposition the auxiliary air distribution duct. Refer to Auxiliary Air Distributor Duct Replacement .
Remove the instrument panel carrier. Refer to Instrument Panel Carrier Replacement .
Disconnect the HVAC module assembly electrical connectors.

HVAC Module Assembly Nut (Qty: 5)

CAUTION:

Refer to Fastener Caution .

TIP: Tighten the nuts in sequence.
Tighten
9 N.m (80 lb in)

HVAC Assembly Module