GMC CHEVROLET Silverado 6500HD 2019 Owner's Manual page 374

1. Shock Absorber: Check for
cracks, leaks, and missing or
broken mounting bolts or
bushings.
2. Brake Caliper and Hoses:
Check for broken, loose,
or missing parts. Check for
cracked, worn, or frayed hoses,
and for secure couplings.
3. Frame: Check for cracks or
bends in the frame. Make sure
there are no loose, cracked,
bent, broken, or missing
crossmembers or crossmember
fasteners.
4. Steering Linkage: Inspect the
connecting links, arms, and
rods for worn, damaged, loose,
or missing components.
5. Tire: Check the tread depth
and tire inflation. Note if the
tread is evenly worn. Minimum
tread depth is 3 mm (4/32 in)
on all tires. Look for cuts or
other damage to the tread or
sidewalls. See if the valve caps
and stems are missing, broken,
or damaged.
6. Brake Pads and Rotor: With
the brakes released, check to
see that the brake linings
(where visible) are not worn
excessively thin, less than
6 mm (0.25 in),
or contaminated by lubricant.
Where visible, check the disc
brake caliper wear indicator to
see that the brake pads/rotor
are not worn excessively.
7. Hub: Check for obvious leaks
on the outboard or inboard
sides of the wheel. Verify that
the oil level in the hub is
correct.
8. Wheel and Lug Nuts: Check for
damaged or bent wheel. Check
to see that all the lug nuts are
present and not loose. Look for
rust trails around the nuts.
Ensure that no cracks or
damage are present at the
wheel mount holes.
9. Spring Suspension: Check the
condition of the spring for
cracks, breaks, or shifting.
Inspect the spring hanger
Service and Maintenance
fasteners, shackles, U-bolts,
and nuts for wear, damage,
and tightness.
Right Side Engine Compartment
1. Cowl Vent: Ensure the air inlet
cover is free of dirt and debris.
Warning
Steam and scalding liquids from a
hot cooling system are under
pressure. Turning the pressure
cap, even a little, can cause them
to come out at high speed and
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