Hummer H1 Service Manual page 416

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Troubleshooting Chart 1 – Geared Hubs, Seals and Fittings
Inspect the steering arm cover,
connector, and tube for damage.
Use a soap and water solution or a
commercial leak detection product
around the connector and steering
arm cover.
Air is leaking around the con-
nector or tube end.
Remove the connector from the
tube and steering arm cover. In-
spect connector and tube fitting
for damage (frays,
threads, cracks, or breaks).
Air is leaking around steering arm
cover.
Steering arm cover seal or exten-
sion may need replacement. Re-
move steering arm cover and
inspect the seal
(Figure 6-78).
05745159
Wheels and Tires/Central Tire Inflation System (CTIS)
Damage is found
Loose Component
Leak continues
Damage is found
stripped
Remove the vent line and deter-
mine if air is escaping. If so, steer-
ing arm cover seal is damaged.
Damage is found
Replace part
for damage
if damaged
Replace the con-
nector or tube.
Tighten the connec-
tor, hose clamp or
tube fitting.
Apply new thread sealant
and install connector to
steering arm cover and
tube fitting or tube.
If air is in hub, re-
place seal.
6-33
Replace seal
if damaged