Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
280 Vehicle Care
Warning (Continued)
studs on the wheel. If the stud
holes in a wheel have become
larger, the wheel could collapse in
operation. Replace any wheel if
its stud holes have become larger
or distorted in any way. Inspect
hubs and hub⇣piloted wheels for
damage. Because of loose
running wheels, piloting pad
damage may occur and require
replacement of the entire hub, for
proper centering of the wheels.
When replacing studs, hubs,
wheel nuts or wheels, be sure to
use GM original equipment parts.
{Warning
Wheel nuts that are improperly or
incorrectly tightened can cause
the wheels to become loose or
come off. The wheel nuts should
be tightened with a torque wrench
to the proper torque specification
(Continued)
Warning (Continued)
after replacing. Follow the torque
specification supplied by the
aftermarket manufacturer when
using accessory locking wheel
nuts. SeeCapacities and
Specifications0309for original
equipment wheel nut torque
specifications.
Caution
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. See
Capacities and Specifications
0309for the wheel nut torque
specification.
11 . U s e t h e w h e e l w r e n c h t otighten the nuts firmly. Turn thewheel wrench clockwise and inacrisscrosssequence,asshown.
12. Put the wheel cover or thecenter cap and plastic wheelnut caps back on. Remove anywheel blocks.
Have a technician check thewheel nut tightness of allwheels with a torque wrenchafter the first 160 km (100 mi)and then 1 600 km (1,000 mi)after that. Repeat this servicewhenever a tire is removed or
Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9967827) - 2017 - crc - 5/2/16
Vehicle Care 291
Caution (Continued)
or tires. When applying a tire
dressing, always wipe off any
overspray from all painted
surfaces on the vehicle.
Wheels and Trim—Aluminum
or Chrome
Use a soft, clean cloth with mildsoap and water to clean the wheels.After rinsing thoroughly with cleanwater, dry with a soft, clean towel.Awaxmaythenbeapplied.
Caution
Chrome wheels and other chrome
trim may be damaged if the
vehicle is not washed after driving
on roads that have been sprayed
with magnesium, calcium,
or sodium chloride. These
chlorides are used on roads for
conditions such as ice and dust.
Always wash the chrome with
soap and water after exposure.
Caution
To a v o i d s u r f a c e d a m a g e , d o n o t
use strong soaps, chemicals,
abrasive polishes, cleaners,
brushes, or cleaners that contain
acid on aluminum or
chrome-plated wheels. Use only
approved cleaners. Also, never
drive a vehicle with aluminum or
chrome-plated wheels through an
automatic car wash that uses
silicone carbide tire cleaning
brushes. Damage could occur
and the repairs would not be
covered by the vehicle warranty.
Brake System
Visually inspect brake lines andhoses for proper hook-up, binding,leaks, cracks, chafing, etc. Inspectdisc brake pads for wear and rotorsfor surface condition. Inspect drumbrake linings/shoes for wear orcracks. Inspect all other brake parts.
Steering, Suspension, and
Chassis Components
Visually inspect steering,suspension, and chassiscomponents for damaged, loose,or missing parts or signs of wear atleast once a year.
Inspect power steering for properattachment, connections, binding,leaks, cracks, chafing, etc.
Visually check constant velocity jointboots and axle seals for leaks.
Lubricate the upper and lowercontrol arm ball joints, at least everyother engine oil change.
Lubricate the tie rod ball joints, idlerarm pivot shaft bearings, idler armsocket, and pitman arm socket, atleast every other engine oil change.
Caution
Lubrication of applicable steering/
suspension points should not be
done unless the temperature is
✓12 °C (10 °F) or higher,
or damage could result.
