Chevrolet Silverado / GMC Sierra. Service manual — part 2337

Fig. 93: Removing/Installing Heater Hose To Engine
Courtesy of GENERAL MOTORS CORP.

2. Install the outlet heater hose to the water pump.

3. Install the outlet heater hose to the surge tank.

4. Install the outlet heater hose clamp to the surge tank.

2008 Chevrolet Silverado 1500

2008 HVAC Heating, Ventilation, and Air Conditioning - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 94: Connecting Quick-Connect Fittings
Courtesy of GENERAL MOTORS CORP.

5. Connect the heater and surge tank hoses to the heater core.

6. Pull the heater outlet hose to ensure the connection.

7. Install the heater and surge tank hoses to the mounting clip.

8. Install the air intake tube.

9. Fill the cooling system. Refer to Cooling System Draining and Filling (Vac-N-Fill) or

Cooling System Draining and Filling (Static Fill) .

AIR INLET ASSEMBLY REPLACEMENT

IMPORTANT: Firmly push the quick connect onto the heater core hose

until you hear an audible click.

2008 Chevrolet Silverado 1500

2008 HVAC Heating, Ventilation, and Air Conditioning - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 95: View Of Air Inlet Assembly & Components
Courtesy of GENERAL MOTORS CORP.

Callout

Component Name

Preliminary Procedure

1. Remove the HVAC module assembly. Refer to HVAC Module Assembly

Replacement.

2. Disconnect the electrical connector from the recirculation actuator.

1

Recirculation Actuator Screw (Qty: 2)

Tighten: 1.5 N.m (13 lb in)

NOTE:

Refer to Fastener Notice .

2

Recirculation Actuator

3

Air Inlet Assembly Screw (Qty: 2)

Tighten: 1.5 N.m (13 lb in)

Air Inlet Assembly

2008 Chevrolet Silverado 1500

2008 HVAC Heating, Ventilation, and Air Conditioning - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

BLOWER MOTOR CONTROL MODULE REPLACEMENT

Fig. 96: View Of Blower Motor Control Module & Screws
Courtesy of GENERAL MOTORS CORP.

4

Tip: Tilt the rear of the air inlet assembly upward to release front mounting
tabs.

Callout

Component Name

Preliminary Procedure

1. Remove the I/P insulator panel. Refer to Instrument Panel Insulator Replacement

(with RPO SLT) or Instrument Panel Insulator Replacement (without RPO
SLT) .

2. Disconnect the blower motor control module electrical connector.

2008 Chevrolet Silverado 1500

2008 HVAC Heating, Ventilation, and Air Conditioning - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado