Hummer H1 Service Manual page 766

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AUXILIARY BLOWER SWITCH REPLACEMENT
Removal
1. Pull front console away from dashboard.
2. Depress tabs on blower switch and push through faceplate.
3. Remove connector from back of blower switch
(Figure 11-88).
Installation
1. Secure connector to blower switch and check operation
(Figure 11-88).
2. Install front console.
3. Push blower switch into opening in faceplate.
FRONT CONSOLE
CONNECTOR
Figure 11-88: Blower Switch Replacement
05745159
Heating/Ventilation/Air Conditioning (HVAC)
FACEPLATE
BLOWER
SWITCH
AUXILIARY HEATER HOSE REPLACEMENT
NOTE: Heater hose replacement is the same for both heater
hoses.
NOTE: Production heater hose will have full underbody
length of foil back insulation sleeve. Make sure replacement
hose also has this protection.
Removal
1. Drain cooling system (Section 4).
2. Remove air cleaner induction tube (Section 3).
3. Select heater hose to replace, loosen hose clamps, and
remove heater hose from hose splice.
4. Remove two P-clamps from underbody securing auxiliary
hoses.
5. Remove front and rear consoles.
6. Remove screw clamp securing heater hose to heater core
port on auxiliary unit (Figure 11-87).
7. Pull heater hose through tunnel grommet.
8. Remove heater hose.
Installation
1. Attach one hose end to auxiliary unit heater core port and
secure with clamp (Figure 11-87).
2. Route hose through grommet to engine area.
3. Connect hose to hose splice and secure with clamp.
4. Install two P-clamps to underbody securing installed hose
to existing hoses.
5. Fill cooling system (Section 4).
6. Install air cleaner induction tube (Section 3).
7. Pressure test cooling system and check for leaks.
8. Install front and rear consoles.
9. Start engine and run until engine warms up.
10. Check heating units for proper operation.
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