2008 CHEVROLET KODIAK oil pressure

(12)= Check steering system:
•Look for damaged, loose, or missing parts. Inspect
the steering linkage relay rod and tie rod ends for
looseness or lack of lubricant. Also look for parts
showing signs of wear or lack of lubrication. Replace
parts as needed. Also check steering gear mounting
bolts, pitman arm nut, gear housing upper cover and
side cover attaching bolts, steering column mounting
bolts and cardan joint clamp bolts; tighten if
necessary. See the service manual.
•Inspect power steering hoses, tubes, and fittings for
leaks. Hoses and lines must not be twisted, kinked,
or tightly bent. Make sure clips, clamps, supporting
tubes, and hoses are in place and properly secured.
•Check steering gear for leakage around pitman shaft
and housing. If leakage is evident (lubricant oozing
out, not just oily film), leak should be corrected
immediately.
(13)= Check front and rear suspension. Look for
damaged, loose, or missing parts or parts showing signs
of wear or lack of lubrication. Replace parts as needed.
(14)= Adjust tire pressures as indicated on the
Certification or Tire Information label for optimum tire
life. SeeTires on page 5-82for further details. Check
tires for excessive or abnormal wear or damage. Also
check for damaged wheels. Replace wheels and/or tires
as needed.(15)= Check spring-to-axle U-bolts and shackle bolts
for proper torque. See the service manual for torque
sequence and specifications. When parts are replaced,
the torque must be checked and adjusted more often
during the first 6,000 miles (10 000 km). Check torque at
500 miles (800 km) and 2,000 miles (3 000 km) after
first use of parts.
(16)= Check complete exhaust system, including DPF
pressure lines, and cab areas near the exhaust system
for broken, damaged, missing, or out-of-position parts.
Also inspect for open seams, holes, loose connections, or
other conditions which could let exhaust fumes seep into
the driver compartment. Needed repairs should be made
at once. To help maintain system integrity, replace
exhaust pipes whenever a new muffler is put on.
(17)= Check all gasoline engine drive belts for cracks,
fraying, and wear. Replace as needed.
(18)= Adjust valve lash. Incorrect valve clearance will
result in increased engine noise and reduced engine
output.
(19)= With the engine off and below normal operating
temperature, check to see that the thermostatically
controlled engine cooling fan can be rotated by hand on
viscous-operated drives. Replace as needed.
(20)= Check shields and underhood insulation for
damage or looseness. Adjust or replace as needed.
6-22

(21)= Inspect parking brake drum and linings for wear
or cracks and check linkage and adjustment.
(22)= Wheel bearing service:
•Grease type — Clean, inspect, and lubricate with
the proper wheel bearing grease at designated
intervals or when hubs are removed. SeePart C:
Recommended Fluids and Lubricants on page 6-31.
•Oil-filled type — Some wheel bearings are
lubricated by axle lubricant. When you have oil-filled
hubs, use lubricant identical to that used in the
axle. Lubricant change intervals are the same for
front and rear axles. However, you must maintain
the proper oil level between change intervals.
SeeFront Wheel Bearings with Oil-Filled Hubs on
page 5-81andPart C: Recommended Fluids
and Lubricants on page 6-31.
(23)= Check the air intake system installation to see
that gaskets are seated properly and all hose
connections, fasteners, and other components are tight.
Tighten connections and fasteners or replace parts as
required.
(24)= Evaporative Control System Service, if equipped:
Check all fuel and vapor lines and hoses for proper
connections and correct routing (or every 24 months,
whichever occurs first). Replace parts as needed.(25)= Replace spark plugs. Inspect wires for damage.
Check the wire boot and boot heat shield fit at spark
plugs and coil. Replace parts as needed.
(26)= Check the fuel tank, fuel cap and fuel lines for
damage which could cause leakage. Inspect fuel cap for
correct sealing ability and any indications of damage.
Check fuel cap gasket for even filler neck imprint.
Replace parts as needed.
(27)= Check Exhaust Gas Recirculation (EGR) system
as described in the service manual. SeeService
Publications Ordering Information on page 7-10.
(28)= Inspect Electronic Vacuum Regulator Valve
(EVRV) filter for excessive contamination or plugging.
If needed, clean filter with solution of soap and water, let
dry and install.
(29)= Drain, flush, and refill cooling system. This
service can be complex; you should have your
dealer/retailer perform this service. SeePart C:
Recommended Fluids and Lubricants on page 6-31for
what to use. Inspect hoses. Clean radiator, condenser,
pressure cap, and neck. Pressure test cooling system
and pressure cap. For Caterpillar
®diesel engines,
always refer to the Caterpillar®Diesel Engine
Operation & Maintenance Manual for coolant
recommendations and change intervals.
6-23

(30)= Change the lubricant. SeePart C: Recommended
Fluids and Lubricants on page 6-31.
(31)= Front axle service: Re-pack upper kingpin roller
bearing.
(32)= Air brake service:
•Inspect brake lines and hoses for proper hook-up,
binding, leaks, cracks, chafing, etc. Inspect drum
brake linings for wear or cracks. Inspect other brake
parts at each wheel, including drums and wheel
speed sensor wiring. Check brake pedal for
excessive free play or travel (or every 6 months,
whichever occurs first) and have serviced if needed.
Check brakes more often if driving habits and
conditions result in frequent braking. Replace air
dryer cartridge only if excessive oil or moisture
is present. A small amount of oil in the system is
normal and should not be considered as a reason to
replace the cartridge.
•Test air lines for leaks; tighten as needed. Replace
compressor filter.
•Inspect air parking brake chamber for leaks and
damage. Inspect lines and hoses for leaks, cracks,
chafing, etc. Also check all attachments for tightness,
wear, or damage. Note: The spring brake section of
the rear brake diaphragms are non-serviceable.
•Replace the air compressor filter element, mounted
on the air compressor. For remote air compressor
intake service, refer to engine air cleaner filter
replacement.
•Remove, disassemble, clean, and inspect the safety
valve, service brake chambers, quick release valves,
quick release/double check valve combinations,
parking brake control valve, double check valves,
pressure protection valves, and ether injector
(if equipped).
•Remove, disassemble, and clean the application
valve; replace parts showing wear.
•Remove, disassemble, clean, and inspect the spring
brake control valve; replace rubber parts.
6-24

Part B: Owner Checks and Services
Listed in this part are owner checks and services
which should be performed at the intervals specified to
help ensure the safety, dependability and emission
control performance of your vehicle.
For your safety and that of others, any of the
safety-related components that may have been
damaged in an accident should be checked and any
needed repairs made before operating the vehicle.
At the minimum, these routine checks should be made
every 6 months or 6,000 miles (10 000 km), whichever
occurs first. Whenever repairs are needed, have
them completed before operating the vehicle.
At Each Fuel Fill
It is important to perform these underhood checks at
each fuel fill.
Engine Oil Level Check
Notice:It is important to check the engine oil
regularly and keep it at the proper level. Failure to
keep the engine oil at the proper level can cause
damage to the engine not covered by your warranty.Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil (Caterpillar
®Diesel Engine)
on page 5-23orEngine Oil (Gasoline Engine) on
page 5-24orEngine Oil (DURAMAX
®Diesel Engine) on
page 5-28orEngine Oil (Isuzu Diesel Engine) on
page 5-32.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL®
coolant mixture if necessary. SeeEngine Coolant
(Caterpillar®Diesel Engines) on page 5-44orEngine
Coolant (Gas and DURAMAX®/Isuzu 7.8L L6 Engines)
on page 5-44.
Windshield Washer Fluid Level Check
Check the windshield washer fluid level in the windshield
washer fluid reservoir and add the proper fluid if
necessary. SeeWindshield Washer Fluid on page 5-55.
Tire Ination Check
Check tire inflation cold. Make sure the tires are inflated
to the correct pressures. SeeLoading Your Vehicle
on page 4-21andInflation - Tire Pressure on page 5-82.
6-26

Exhaust Brake Indicator Light...........................3-40
Exhaust Restrictor...........................................2-22
Extender, Safety Belt.......................................1-28
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-39
Filter Minder Gage..........................................3-45
Finish Damage...............................................5-99
Fixed Mast Antenna........................................3-58
Flashers, Hazard Warning.................................. 3-6
Flat Tire........................................................5-92
Fluid.............................................................5-43
Power Steering...........................................5-54
Windshield Washer......................................5-55
Four-Wheel Drive....................................2-32, 5-73
Front Axle......................................................5-74
Front Wheel Bearings with Oil-Filled Hubs..........5-81
Fuel............................................................... 5-7
Additives...................................................... 5-8
Change Filter Warning Light..........................3-44
Diesel Engine Fuel........................................ 5-9
Filling a Portable Fuel Container....................5-21
Filling the Tank...........................................5-20
Filter..........................................................5-78
Filter Replacement.......................................5-18
Fuels in Foreign Countries............................5-19Fuel (cont.)
Gage.........................................................3-43
Gasoline Octane........................................... 5-7
Gasoline Specifications.................................. 5-7
Primary Filter and Water Separator................5-79
Running Out of...........................................2-50
Running Out of Fuel....................................5-17
Secondary Filter and Water Separator/
Heater....................................................5-80
Very Cold Weather Operation........................5-12
Water in Fuel..............................................5-12
Water in Warning Light.................................3-44
What Fuel to Use.......................................... 5-9
Fuses
Fuses and Circuit Breakers.........................5-103
Instrument Panel Fuse Block.......................5-103
Underhood Fuse Block...............................5-106
Windshield Wiper.......................................5-102
G
Gage
Air Pressure...............................................3-46
Check Gages Warning Light..........................3-42
Engine Coolant Temperature.........................3-35
Filter Minder...............................................3-45
Fuel..........................................................3-43
Hourmeter..................................................3-46
Oil Pressure...............................................3-37
5

M
Maintenance, Replacement Parts.....................5-115
Maintenance Schedule
At Each Fuel Fill.........................................6-25
At Least Once a Year..................................6-29
At Least Twice a Year..................................6-26
How This Section is Organized....................... 6-2
Introduction.................................................. 6-2
Maintenance Requirements............................. 6-2
Part A - Scheduled Maintenance Services......... 6-3
Part B - Owner Checks and Services.............6-25
Part C - Recommended Fluids and
Lubricants...............................................6-30
Part D - Maintenance Record........................6-32
Scheduled Maintenance................................. 6-4
Scheduled Maintenance Supplements............... 6-4
Using.......................................................... 6-3
Your Vehicle and the Environment................... 6-2
Malfunction Indicator Light................................3-36
Manual Transmission
Fluid..........................................................5-43
Operation...................................................2-30
Manual, Using..................................................... ii
Manual Windows.............................................. 2-8
Marker Lamps................................................3-16
Mirrors
Manual Rearview Mirror................................2-51
Outside Convex Mirrors................................2-52
Outside Heated Mirrors................................2-52Mirrors (cont.)
Outside Manual Mirrors................................2-51
Outside Power Mirrors..................................2-51
N
Navigation System, Privacy..............................7-12
New Vehicle Break-In......................................2-10
Noise Control System, Tampering......................5-75
O
Odometer......................................................3-26
Odometer, Trip...............................................3-26
Off-Road Recovery..........................................4-11
Oil
Change Engine Oil Light...............................3-38
Engine...............................5-23, 5-24, 5-28, 5-32
Low Oil Level Light......................................3-38
Pressure Gage............................................3-37
Oil, Engine Oil Life System..............5-36, 5-37, 5-39
Older Children, Restraints................................1-28
OnStar, Privacy..............................................7-12
Other Service Items
Front Wheel Bearings with Oil-Filled Hubs.......5-81
Primary Fuel Filter and Water Separator.........5-79
Secondary Fuel Filter and Water
Separator/Heater......................................5-80
Other Warning Devices...................................... 3-6
8