Chevrolet Kodiak 2008 Owner's Manual page 339

Diesel Engine: Inspect engine air cleaner filter
change indicator. If necessary, replace the filter.
If vehicle is driven in dusty/dirty conditions, inspect
filter change indicator at every engine oil change. See
Engine Air Cleaner/Filter on page 5-39 for more
information.
®
DURAMAX /Isuzu Diesel Only: Replace fuel filter
(or every 750 hours of engine operation, whichever
occurs first).
Steering system service. (12)
Front and rear suspension service. (13)
Spring-to-axle U-bolts and shackle bolts service. (15)
Exhaust system service (or every 6 months,
whichever occurs first). (2) (3) (16)
Wheels and tires service. (14)
Hydraulic brake service (or every 6 months,
whichever occurs first). (6) (36)
Parking brake service (or every 6 months, whichever
occurs first). (21)
Air brake service (or every 6 months, whichever
occurs first). (32)
Air brake automatic slack adjuster service (or every
500 hours, whichever occurs first). (33)
Check air brake relay valve operation and check for
leaks (or every month, or every 300 hours, whichever
occurs first).
Clean air brake application valve (or every 3 months,
or every 300 hours, whichever occurs first). Lubricate
linkage.
Air brake chamber service (or every 2 months,
whichever occurs first). (34)
Air compressor dry element pleated paper air strainer
service (or every 2 months, or every 800 hours,
whichever occurs first).
Fuel tank, fuel cap and fuel lines service (or every
72 months, whichever occurs first). (2) (26) †
Exhaust Gas Recirculation (EGR) system inspection
(if equipped) (or every 72 months, whichever occurs
first). (2) (27)
Thermostatically controlled engine cooling fan
service. (3) (19)
Shields and underhood insulation service. (3) (4) (20)
Gasoline Engine: Air compressor remote mounted
air filter dry element pleated paper air strainer
service (or every 6 months or every 1800 hours,
whichever occurs first).
6-15