Page 349 of 414

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
348 Service and Maintenance
Maintenance Schedule Table (Gasoline Vehicles)
Letters Used to Indicate Maintenance Service Types
I :Inspect then clean, repair or replace as necessary
R : Replace
T : Tighten to the specified torque
L : Lubricate
No. Service Interval
12 000 km/7,500 mi
24 000 km/15,000 mi
36 000 km/22,500 mi
48 000 km/30,000 mi
60 000 km/37,500 mi
72 000 km/45,000 mi
84 000 km/52,500 mi
96 000 km/60,000 mi
108 000 km/67,500 mi
120 000 km/75,000 mi
132 000 km/82,500 mi
144 000 km/90,000 mi
156 000 km/97,500 mi
168 000 km/105,000 mi
180 000 km/112,500 mi
192 000 km/120,000 mi
Service
intervals
months or
kilometers
(miles)
whichever
occurs
first (1)
1 Engine oil (2) (4) See Explanation of Complete Vehicle Maintenance Schedule or every 12 months
2 Engine oil filter (2) (4) See Explanation of Complete Vehicle Maintenance Schedule or every 12 months
3 Cooling System Service - - - I - - - I - - - I - - - I or every 24 months
4 Engine Coolant (2) Every 80 000 km (50,000 mi): R
5 Air Cleaner Filter (2) Every 48 000 km (30,000 mi): R
6 PCV System (2) - - - - - - - - I - - - - - - -
7 Spark Plugs (2) Every 160 000 km (100,000 mi): R
8 Spark Plug Wires (2) Every 160,000 km (100,000 mi): R
9 Fuel Tank, Cap, and Lines (2) (6) - - - - - - - - I - - - - - - -
10 Engine Accessory Drive Belt(s) (2) Every 60 000 km (37,500 mi): I
Every 160 000 km (100,000 mi): R
Page 357 of 414

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
356 Service and Maintenance
Maintenance Schedule Table (Diesel Vehicles)
Letters Used to Indicate Maintenance Service Types
I :Inspect then clean, repair or replace as necessary
A : Adjust
R : Replace
T : Tighten to the specified torque
L : Lubricate
C : Clean
No. Service Interval
16 000 km/10,000 mi
24 000 km/15,000 mi
32 000 km/20,000 mi
48 000 km/30,000 mi
64 000 km/40,000 mi
72 000 km/45,000 mi
80 000 km/50,000 mi
96 000 km/60,000 mi
112 000 km/70,000 mi
120 000 km/75,000 mi
128 000 km/80,000 mi
144 000 km/90,000 mi
160 000 km/100,000 mi
168 000 km/105,000 mi
176 000 km/110,000 mi
Service intervals
months or
kilometers
(miles)
whichever
occurs first (1)
1 Engine noise check I - I I I - I I I - I I I - I
2 Valve lash - - - A - - - A - - - A - - - or every
12 months
3 Engine oil and oil filter (2) R - R R R - R R R - R R R - R or every
12 months
4 Fuel filter - R - R - R - R - R - R - R - or every
24 months
Page 391 of 414

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
390 Technical Data
Fuel injection timing
(static) degree0° Variable 0°
Valve clearance (Between
cam and roller) Both intake and exhaust
valves:
0.15 mm (0.006 in) in cold engine —
Both intake and exhaust
valves:
0.6 mm (0.024 in) in cold engine
Idling speed 576 - 625 r/min 550 r/min 500 - 600 r/min
Fan belt tension New belt: 4 - 6 mm (0.16 -
0.24 in)/212 - 236 Hz
When used: 6 - 8 mm (0.24
- 0.31 in)/181 - 195 Hz —
New belt: 5 - 7 mm (0.20 -
0.28 in)/184 - 206 Hz
When used: 8 - 9 mm (0.31
- 0.35 in)/158 - 170 Hz
Oil filter Replaceable element type Replaceable element type Catridge
Engine oil capacity When changing oil and
filter:
8.2 L (8.7 qt)
*1
When changing oil and filter:
5.7 L (6.0 qt)
*1
When changing oil only: 9.5 L (10.0 qt)*1
When changing oil and
filter:
11.0 L (11.6 qt)
*1
Engine coolant capacity 12.6 L (13.3 qt)*215.0 L (15.9 qt)*219.6 L (20.7 qt)*2
Preheating system Glow plugs—Glow plugs
Page 396 of 414

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Technical Data 395
Oil pan drain plug83.3Y(8.5 kgf m/
61.0 lb ft) 25.0
Y(2.5 kgf m/
18.0 lb ft) 83.3
Y(8.5 kgf m/
61.0 lb ft)
Oil filter drain plug 25.0Y(2.5 kgf m/
18.0 lb ft) —
—
Oil filter —30.0Y(3.1 kgf m/
22.0 lb ft) —
Oil filter cartridge ——63.7Y(6.5 kgf m/
47.0 lb ft)
Remarks:
*1see Engine Oil (Gasoline) 0257 orEngine Oil (Diesel) 0251.
Remarks:*2see Engine Coolant 0263.
Remarks:*3see Automatic Transmission Fluid 0260.
Remarks:*4see Rear Axle (Gear Oil Viscosity Chart) 0283 orRear Axle (Oil Level Check) 0283.
Remarks:*5only for vehicles equipped with optional limited slip differential.
Remarks:*6The fuel tank capacity is stated on a metal plate attached to the fuel tank body. Only fill the tank to
95 percent of its capacity; this allows room for the expansion of the fuel.
Remarks:
*7larger capacity batteries 31 (180-930) × 2 can also be used. However, do not mix batteries of different
types and from different makers.
Page 398 of 414

Chevrolet Low Cab Forward Owner Manual (GMNA-Localizing-U.S.-
10716700) - 2017 - crc - 12/6/16
Technical Data 397
No.Name
4 A/C compressor
5 Tension pulley
6 Crank pulley
7 Alternator
If your air conditioning system is
functioning properly, it is not
necessary to remove and replace
the refrigerant or compressor oil.
. A V-ribbed belt is used for the
fan belt. This type of belt
requires the tension to be
adjusted more accurately than is
required with the conventional V
belt. Inappropriate tension could
cause the belt to make noise or
break. When the fan belt is
damaged, electricity is not
properly generated or becomes
a cause of engine overheating.
You must check the tension of
the fan belt carefully.
. Use dealer-certified genuine
parts when changing the
fan belt. .
Have the vehicle inspected and
serviced at your dealer.
. The air conditioning drive belt,
if equipped, must be adjusted
after fan belt adjustment. If the
belt is not adjusted properly, the
A/C belt may experience
excessive tension, and possible
premature failure.