2017 CHEVROLET LOW CAB FORWARD maintenance

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
376 Service and Maintenance
one side, unusual sounds when
braking, increased brake pedal
travel or harder pedal. The front and
rear brakes are attached to an auto
adjuster mechanism. If there are no
defects, as the pedal travel is
properly maintained, adjustments
are not necessary. Check regularly
that the brake fluid reservoir
(left-hand side of the instrument
panel) or HBB reservoir (5500HD,
5500XD models: left side behind the
cab) is properly filled and check for
fluid leaks. Any of these conditions
could indicate the need for brake
system inspection and/or service.
G: Exhaust System :Be alert for
any changes in the sound of the
exhaust system or any smell of
fumes. These are signs the system
may be leaking. Have it checked
and/or repaired at once. (Refer to
"Engine Exhaust Emissions Caution
(Carbon Monoxide)" under Engine
Exhaust 0178).
H: Windshield Wipers and
Washers : Check operation and
condition of the wiper blades. Check
the flow of the washer spray. I: Defroster :
Turn the outlet
selector knob to "Defroster" and the
fan speed control knob to the fully
clockwise position. Then check the
airflow from the ducts at the inside
base of the windshield.
J: Rearview Mirrors and Sun
Visors : Check that friction joints
hold mirrors and sun visors in place.
K: Horn : Sound the horn, now and
then, to be sure it works.
L: Lap-Shoulder Belts : Check the
seat belt system (including webbing,
buckles, latch plates and anchors)
for proper operation, and for
damage.
M: Seat Adjusters : When
adjusting the driver's manual seat,
be sure the seat adjusters latch by
pushing the seat forward and
backward. Do not attempt to adjust
the seat when the vehicle is in
motion.
N: Lamps : Check panel lighting,
warning lamps, indicator lamps and
interior lamps. On the outside,
check: license plate lamps, side
marker lamps, reflectors on outside mirrors, headlamps, parking lamps,
identification and clearance lamps,
taillights, brake lamps, turn signals,
cornering lamps, backup lamps and
hazard warning flashers. Have
headlamp aim checked immediately
if beams seem improperly aimed.
O: Glass, Mirrors, Lights and/or
Reflectors Condition :
Look for
broken, scratched, dirty or damaged
glass, mirrors, lamps or reflectors
that could reduce the view or
visibility, or cause injury. Replace,
clean or repair promptly.
P: Door Latches : Check that doors
close, latch and lock tightly. Check
for broken, damaged or missing
parts that might prevent tight
latching.
Q :Tilt Cab (Driving Position) : Be
sure the tilt lever is down and
locked.
R: Fluid Leaks : Check for fuel,
water, oil or other fluid leaks by
looking at the surface beneath the
vehicle after it has been parked for
a while. If you notice diesel fumes or
fluid at any time, have the cause
found and corrected at once.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Service and Maintenance 377
S: Underbody :Corrosive materials
used for ice removal, snow removal
and dust control can collect on the
underbody. If these materials are
not removed, accelerated corrosion
(rust) can occur on underbody parts
such as fuel lines, frame, floor pan
and exhaust system. At least every
spring, flush these materials from
the underbody with plain water.
Take care to clean well any areas
where mud and other debris can
collect. Sediment packed in closed
areas of the frame should be
loosened before being flushed.
Checking Components that
Showed Abnormalities during
Previous Operation
Check the components that showed
abnormalities during the previous
operation. Have any abnormalities
repaired by your dealer before using
the vehicle.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
378 Service and Maintenance
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer.Usage Fluid/Lubricant
Automatic Transmission (Diesel
Engine) Automatic Transmission Fluid (GM Part No. 19354076).
Automatic Transmission (Gasoline
Engine) DEXRON
®-VI Automatic Transmission Fluid.
Battery Terminals Petroleum Jelly (outer surfaces)
Brake Fluid DOT 3 Hydraulic Brake Fluid (GM Part No. 19299818).
Cab-Door Hinges and Latches
Lubricant Multi-Purpose Lubricant, Superlube (GM Part No. 12346241) or equivalent
containing zinc oxide.
Chassis Lubricant Chassis Lubricant (GM Part No. 12377985) or high temperature equivalent.
Diesel Exhaust Fluid (DEF) Diesel Exhaust Fluid (GM Part No. 19286291) or diesel exhaust fluid that meets ISO 22241-1 or displays the API Diesel Exhaust Fluid
Certification Mark.
Driveshaft Center Bearing, Wheel
Hub Bearing Lubricant NLGI #2 or #3
Driveshaft, Universal Joints and
Sliding Sleeve Lubricant NLGI #1 or #2 multi-purpose type grease

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Service and Maintenance 379
UsageFluid/Lubricant
Engine Coolant (Diesel Engine) 50/50 mixture of clean, drinkable water and GM extended life coolant. (GM Part No. 12378560) SeeEngine Coolant0263.
Engine Coolant (Gasoline Engine) 50/50 mixture of clean, drinkable water and use only DEX-COOL
®coolant.
See Engine Coolant 0263.
Engine Oil (Diesel Engine) Engine oils with the letters CK-4 are required for your vehicle. The CK-4 designation can appear either alone or in combination with other American
Petroleum Institute (API) designations, such as API CK-4/SL. These letters
show API levels of quality. To determine the preferred viscosity for your
vehicle's diesel engine, seeEngine Oil (Gasoline)0257 orEngine Oil
(Diesel) 0251.
Engine Oil (Gasoline Engine) Engine oil meeting the dexos1™ specification of the proper SAE viscosity
grade. ACDelco dexos1 Synthetic Blend is recommended.
See Engine Oil (Gasoline) 0257 orEngine Oil (Diesel) 0251.
Hydraulic Brake Booster (If
Equipped) DEXRON
®-VI Automatic Transmission Fluid.
Power Steerig Fluid DEXRON
®-VI Automatic Transmission Fluid.
Rear Axle Multi purpose gear oil SAE80W-90 GL-5, SAE90 GL-5
Rear Axle
(Limited slip differential (LSD)) Multi purpose gear oil SAE80W-90 GL-5, SAE90 GL-5 for limited slip
differential together with limited slip differential lubricant additive (GM
Part No. 88900330) or equivalent.
Windshield Washer Solvent Automotive windshield washer fluid that meets regional freeze protection requirements.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
380 Service and Maintenance
Be sure to use the LSD gear oil
additive mentioned above in
vehicles equipped with limited slip
differentials, and ensure there is an
appropriate amount of the LSD gear
oil additive, otherwise a chattering
noise and/or excessive vibration
may occur when turning.
If abnormal noises occur despite
having used the specified LSD gear
oil additive, have it inspected and
serviced at your dealer.Maintenance
Replacement Parts
Replacement Parts
Please contact your dealer for
genuine GM parts.
{Warning
If part replacement is necessary,
the part must be replaced with
one of the same part number or
with an equivalent part. Use of a
replacement part of lesser quality
may result in personal injury or
damage to the vehicle.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Service and Maintenance 381
3.0L Diesel
PartGM Part Number
Engine Air Cleaner 98177271
Engine Oil Filter 98018858
Fuel Filter Main: 98203599
Pre: 98037481
5.2L Diesel
Part GM Part Number
Engine Air Cleaner 98177271
Engine Oil Filter 98298404
Fuel Filter: Engine Side 98147525
Fuel Filter: Chassis Side 98037481
6.0L Gas
PartGM Part Number
Engine Air Cleaner 97062294
Engine Oil Filter 89017524

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
382 Service and Maintenance
Replacement Fasteners
During vehicle maintenance, any
fasteners used to replace older
ones must have the same
measurements and strength as
those removed, whether metric or
customary. Fasteners taken from
the vehicle should be saved for
reuse in the same location when
possible. Where a fastener cannot
be used again, take care to choose
a replacement that matches the old
one. For information and help, see
your dealer.
{Warning
This vehicle is primarily
dimensioned in the metric system.
Most fasteners are metric and
many are very close in dimension
to well-known customary
fasteners in the inch system.
Mismatched or incorrect fasteners
can result in damage to the
vehicle or possibly personal
injury.

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
396 Technical Data
Engine Drive Belt Routing
Fan Belt and Air Conditioning
Compressor Belt
See theMaintenance Schedule
0 345.
3.0L L4 Engine (IZ3)
No. Name
1 Fan Pulley
2 Tension pulley
3 A/C compressor
4 A/C belt
5 Crank pulley
6 Idler No.
Name
7 Alternator
8 Fan belt
If your air conditioning system is
functioning properly, it is not
necessary to remove and replace
the refrigerant or compressor oil.
6.0L V8 Engine (L96)
No. Name
1 Fan belt idler pulley
2 Alternator
3 Vacuum pulley
4 Power steering pump pulley No.
Name
5 Cooling fan pulley
6 Crank pulley
7 A/C belt
8 A/C compressor
9 Fan belt
10 Fan belt tensioner
5.2L L4 Engine (I1B)
No. Name
1 Fan belt
2 Fan pulley
3 A/C belt