Tank Cleaning - Hummer H1 Service Manual

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Fuel Level Transmitter/Pump/Vents/ Access
Plate Replacement
The fuel level transmitter, vents, and access plate can all be
serviced once the tank is out of the vehicle (Figure 3-34).
If the fuel tank requires replacement, be sure to replace all nec-
essary gaskets, O-rings, seals, and strainer with new parts. Coat
fitting threads with Loctite PST before installation.
FUEL TANK
ACCESS PLATE
TANK
JUMPER
HARNESS
OUTER
REAR
STRAP
INSULATORS
BOTTOM
STRAP
O-RING (12)
ACCESS PLATE
RETAINER
5745159
FUEL LINE
SUPPORT
BRACKET
VENT LINE
FITTING
SPACER
OUTER
FRONT STRAP
BOTTOM
FRONT STRAP
Figure 3-34: Fuel Tank and Components
Fuel, Emissions, and Exhaust

Tank Cleaning

In cases where the tank was removed for correction of contam-
ination, remove the transmitter, fuel pump, and access plate for
maximum access. Use a soap and water solution and low pres-
sure steam gun. Be sure to clean out the fuel supply and return
lines as well. The tank can be dried with compressed air or al-
lowed to air dry as desired.
FUEL
STRAINER
ACCESS PLATE
GASKET
SPACER
MAIN
FUEL TANK
PLUG
SHIELD
INSULATOR
3-25
FUEL LEVEL
TRANSMITTER
GASKET
INNER REAR STRAP
AND INSULATOR
SHIELD
VENT FITTING
INNER FRONT STRAP
AND INSULATOR