Front Cti Line Replacement; Rear Cti Line Replacement - Hummer H1 Service Manual

6-50 Wheels and Tires/Central Tire Inflation System (CTIS)

FRONT CTI LINE REPLACEMENT

1. Disconnect line at front hub (Figure 6-69).
2. Loosen clamp on bracket attached to lower control arm,
then move air line out of bracket (Figure 6-70).
3. Disconnect front air line at T-fitting secured to front
crossmember.
4. Cut tie straps and remove front air line.
5. Tape ends of new line to prevent dirt entry. Then route line
to front wheel and T-fittings.
6. Secure hose to fittings and in clamp on lower control arm
bracket.
7. Install tie straps as needed.
AIR LINE TO
FRONT WHEEL
Figure 6-69: Line Connection to Hub
LOWER CONTROL ARM
Figure 6-70: Line Bracket and
Clamp Location
HUB
CLAMP
AIR LINE
BRACKET

REAR CTI LINE REPLACEMENT

1. Disconnect line at rear wheel and at T-fitting (Figure 6-71).
2. Remove line from clamp on lower control arm and from
rear hub.
3. If working on right rear line, remove clamp over
crossmember to remove line (Figure 6-72).
4. Tape ends of new line to prevent dirt entry.
5. Connect line to T-fitting and rear hub.
6. Secure line in control arm clamp.
7. If working on right rear line, secure line to crossmember
with clamp (Figure 6-72).
T-FITTING
Figure 6-71: T-Fitting Location
REAR
CROSSMEMBER
Figure 6-72: Right Rear Line Routing Over Rear
Crossmember
_______________
LEFT REAR
UPPER CONTROL ARM
AIR LINE TO
RIGHT REAR WHEEL
CLAMP
AIR LINE
TO TEE
®