Hummer H1 (2002+). Instruction - page 40
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Fuel, Emissions, and Exhaust 3-21
®
5745159
Air Cleaner Filter Element Service
Removal
1.
Remove ring clamp, cover, and gasket from air cleaner
(Figure 3-24).
2.
Remove nut and washer assembly and filter element from
air cleaner stud.
Figure 3-24: Air Cleaner Filter Element
Removal/Installation
Inspection
1.
Clean components with compressed air, examine for wear
or damage, and replace if necessary.
2.
Remove dust or sand by gently tapping around filter
element.
3.
Remove dirt and dust from filter element by directing flow
of compressed air from inside to outside of filter element.
Installation
1.
Slide filter element onto air cleaner stud and install nut and
washer. Tighten nut and washer to 18-35 lb-in. (2-4 N•m)
(Figure 3-24).
NOTE: To avoid damage to hood, ensure ring clamp bolt is
between the three and six o’clock positions.
2.
Install gasket, cover, and ring clamp on air cleaner
assembly. Tighten ring clamp bolt to 27-35 lb-in. (3-4
N•m).
AIR HORN
Removal
1.
Loosen clamp and remove air induction hose from air horn
(Figure 3-25).
Figure 3-25: Air Horn Mounting
2.
Remove CTIS air inlet hose and elbow from air horn.
3.
Loosen clamps that secure the air horn to the CDR valve
and turbo charger inlet hose.
4.
Remove air horn.
5.
Cover turbo charger opening to prevent dirt entry.
Installation
1.
Connect air induction hose to air horn (Figure 3-25).
2.
Connect air horn to turbo inlet. Tighten clamp to 44 lb-in
(5 N•m).
3.
Tighten air induction clamp to air horn. Tighten clamp to
44-53 lb-in (5-6 N•m).
4.
Connect CDR hose to CDR tube on air horn. Tighten to 44
lb-in (5 N•m).
5.
Apply sealant to CTIS air inlet elbow and install into
coupling on air horn. Tighten hose clamp.
RING
CLAMP
COVER
GASKET
FILTER
ELEMENT
AIR CLEANER
STUD
AIR
CLEANER
9-S03-002
AIR
INDUCTION
HOSE
CTIS AIR
INLET ELBOW
TUBRO
CHARGER
INLET
HOSE
CDR
HOSE
3-22
Fuel, Emissions, and Exhaust
___________________________________________
®
Air Induction Hose Replacement
Removal
1.
Loosen induction hose clamps.
2.
Remove hose from air horn and air cleaner (Figure 3-26).
Figure 3-26: Air Induction Hose Attachment
Installation
1.
Install induction hose on air horn and air cleaner.
2.
Tighten hose clamps to 44 lb-in. (5 N•m) (Figure 3-26).
WEATHERCAP REPLACEMENT
Removal
Remove clamp and weathercap from air intake duct
(Figure 3-27).
Figure 3-27: Weathercap Mounting
Installation
Install weathercap on air intake duct. Tighten clamp to 44-53
lb-in. (5-6 N•m).
FUEL TANK DRAINING
The fuel tank should only be drained with portable air powered
drain equipment. This type of equipment is OSHA approved
and will drain the tank through the filler neck.
The tank should be drained prior to removal. Follow the drain
equipment manufacturer’s instructions explicitly.
Figure 3-28: Fuel Tank Filler Cap
AIR HORN
AIR INDUCTION
HOSE
WEATHERCAP
AIR INTAKE
DUCT
S03-007
FUEL TANK
FILLER CAP
FILLER HOUSING
___________________________________________
Fuel, Emissions, and Exhaust 3-23
®
5745159
DRAINAGE BRACKET REPLACEMENT
Removal
1.
Remove air cleaner assembly.
2.
Remove three screws and drainage bracket from body
(Figure 3-29).
Figure 3-29: Drainage Bracket Location
Installation
1.
Position drainage bracket on body and install bracket
screws (Figure 3-29).
2.
Install air cleaner assembly.
AIR INTAKE VENT LINE REPLACEMENT
Removal
Remove air intake vent line from tee fitting and air cleaner fit-
ting (Figures 3-27 and 3-29)
.
Figure 3-30: Air Intake Vent Line Routing
Installation
Install air intake vent line on tee fitting and air cleaner fitting
(Figures 3-27 and 3-29)
.
Figure 3-31: Air Cleaner Vent Line Fitting Location
DRAINAGE BRACKET
AIR INTAKE SUPPORT
AIR INTAKE VENT LINE
TEE FITTING
AIR INTAKE VENT LINE
VENT LINE FITTING
3-24
Fuel, Emissions, and Exhaust
___________________________________________
®
MAIN FUEL TANK
Removal
1.
Drain tank with recommended equipment.
2.
Remove bolts attaching fuel filler housing to body.
3.
Remove vapor canister shield and bracket. Then disconnect
tank vent lines, and hoses at branch tee in fuel filler housing.
4.
Remove clamps attaching filler tube to vent line or body.
5.
Disconnect filler housing ground strap.
6.
Loosen clamps securing connecting hose to filler tube and
housing (Figure 3-32).
Figure 3-32: Filler Tube-to-Tank Attachment
7.
Remove fuel filler housing and filler neck.
8.
Raise vehicle.
9.
Remove rear propeller shaft.
10. Rotate rear axle yoke to a vertical position. Tank may not
clear yoke otherwise.
11. Support tank with transmission jack or other suitable
support device.
12. Remove bolts and nuts attaching front and rear upper
straps to lower straps (Figure 3-33).
Figure 3-33: Fuel Tank Mounting Strap Attachment
13. Disconnect vent lines at fuel tank.
14. Lower tank enough for access to transmitter wires and fuel
lines.
15. Disconnect transmitter wires.
16. Disconnect but do not remove rollover valve line.
17. Lower and remove fuel tank.
FILLER TUBE
CLAMP
HOUSING
STRAP
UPPER
LOWER STRAP
FUEL TANK
SUPPORT STRAP
LOWER
STRAP
STRAP
BRACKET