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I 6b, CAUTION:
Incorrect wheel nuts or improperly tightened
wheel nuts can cause the wheel to become loose
and even come off. This could lead to an accident.
Be sure to use the correct wheel nuts. If you have
to replace them, be sure to get new
GM original
equipment wheel nuts.
Stop somewhere
as soon as you can and have the
nuts tightened with
a torque wrench to 60 lb-ft
(80 Nom).
1 NOTICE:
Improperly tightened wheel nuts can lead to
brake pulsation and rotor damage.
To avoid
expensive brake repairs, evenly tighten the wheel
nuts in the proper sequence and to the proper
torque specification.
Storing a Flat or Spare Tire and Tools
I ' A CAUTION:
Storing a jack, re or other equipment in the
passenger compartment of the vehicle could
cause injury. In
a sudden stop or collision, loose
equipment could strike someone. Store all these
in the proper place.
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Page 345 of 388

Long Tripmighway Maintenance Schedule
0 Adjust engine timing to underhood label
specifications. Inspect the inside and
outside
of the distributor cap and rotor for
cracks, carbon tracking and corrosion.
Clean
or replace as needed.
An Emission Control Service.
0 Inspect emission system hoses and replace
as necessary.
An Emission Control Service.
(See footnote Jf .)
0 Inspect propeller shafts and u-joints for
looseness and damage (or every
15 months,
whichever occurs first). Inspect more
frequently if used off-road or for pulling a
trailer. Tighten u-joint flange bolts
if necessary.
Inspect the underhood wiring harness for
loose connections, chafed wires and
damage (or every
60 months, whichever
occurs first).
An Emission Control Service.
(See footnoteJf.)
0 Replace the camshaft timing belt.
An Emission Control Service. (See footnote T.)
0 Replace spark plug wires (or every
60 months, whichever occurs first).
An Emission Control Service.
0 Drain, refill and bleed the brake system.
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Page 356 of 388

Throttle Linkage Inspection
Inspect the throttle linkage for interference or binding,
and for damage or missing parts. Replace parts as
needed. Replace any cables that have high effort or
excessive wear.
Do not lubricate accelerator and cruise
control cables.
Rear Axle (All) and Front Axle
(Four-wheel Drive) Service
Check the gear lubricant level and add if needed. See
“Rear Axle” and “Four-wheel Drive” in
the Index. A
fluid loss may indicate a problem. Check the system(s),
and repair the system(s) if needed. Refer to “Scheduled
Maintenance Services,” earlier
in this section, to
determine when to change the lubricant.
Brake System Inspection
Inspect the complete system. Inspect brake lines and
hoses for proper hook-up, binding, leaks, cracks,
chafing, etc. Inspect disc brake pads for wear and rotors
for surface condition. Also inspect drum brake linings
for wear and cracks. Inspect other brake parts, including
drums, wheel cylinders, calipers, parking brake, etc.
Check parking brake adjustment. You may need to have
your brakes inspected more often if your driving habits
or conditions result in frequent braking.
Clutch System Service
Check clutch pedal free travel and adjust as necessary.
See “Clutch Adjustment’’ in the Index.
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