engine CHEVROLET KODIAK 2007 Owners Manual

Headlamp Wiring
The headlamp wiring is protected by a circuit
breaker in the light switch. An electrical overload
will cause the lights to go on and off, or in
some cases to remain off. If this happens, have
your headlamp wiring checked right away.
Windshield Wiper Fuses
The windshield wiper motor is protected by a
circuit breaker inside the motor and a circuit
breaker or fuse in the fuse block. If the motor
overheats, the wipers will stop until the motor
cools. If the overload is caused by an electrical
problem, be sure to get it fixed.
Fusible Links
A fusible link is a short piece of wire several gauge
sizes smaller than the circuit it protects. It will melt
in an overload situation, opening the circuit.
Your starter and other circuits have these fusible
links. The size is printed on the insulation. If the
insulation is burned beyond recognition, consult
your dealer for the proper size. Replace a fusiblelink with one of the same size and insulation type.
Fusible link insulation is a special purpose
high-temperature material.
Some examples of circuits with fusible links are
the hydraulic brake booster motor feed circuit, the
generator output circuit, and the intake heater
feed circuit in vehicles with a diesel engine.
Power Windows and Other
Power Options
Circuit breakers in the fuse panel protect the power
windows and other power accessories. When the
current load is too heavy, the circuit breaker opens.
This protects the circuit until the current load returns
to normal or the problem is fixed.
Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected
from short circuits by a combination of fuses, circuit
breakers, maxi-fuses and fusible links. This greatly
reduces the chance of a fire caused by an electrical
problem. There may be a fuse taped to the wiring
harness near the hydraulic brake booster.
341

Relay Usage
ECU/PTO*Engine Control Unit/Power Take-Off
*Diesel 7.8 DURAMAX
®
BRK LAMPC4/C5 Brake Lamps,
C6/C7/C8 Tractor/Trailer Wiring
DRL Daytime Running Lamps
IGN-4 Ignition
CHMSL Center High Mounted Stoplamp
MRK LTS Sidemarker and Clearance Lamps
HTD/MIRR Heated Mirrors
HTR Diesel Heated Fuel
RT TRN TRLR Passenger’s Side Trailer Turn Signal
Blank Not Used
LT TRN TRLR Driver’s Side Trailer Turn Signal
Blank Not Used
Blank Not Used
Blank Not Used
Underhood Fuse Block
When a circuit goes out, the problem could be in
either the primary or secondary underhood
fuse blocks. These blocks use blade-type fuses.
Both underhood fuse blocks are located in
the engine compartment, on the passenger’s side
of the vehicle.
To access the fuse blocks, gently squeeze both
sides of the cover to unlatch the tabs at the
top. Then, unsnap both attachments at the bottom
and remove the cover.
Be sure to replace fuses with fuses of the same
rating. Do not use fuses of higher amperage
than those indicated on the fuse block.
344

Fuse Usage
RR DEFOG Rear Defogger
ENG 1 Engine 1
ENG 3 Engine 3
PCM-B Powertrain Control Module
Fuse Usage
BLANK Not Used
ENG 4 Engine 4
ENG 2 Engine 2
HTD FUEL Heated Fuel
BLANK Not Used
BLANK Not Used
02A Emissions
A/C COMP Air Conditioning Compressor
ABS 1 Anti-lock Brake System 1
ABS 2 Anti-lock Brake System 2
ABS 3 Anti-lock Brake System 3
ENGINE Engine
E/A PUMP Electronic/Automatic Pump
HORN Horn
NOTE 2L18 Fuel, LG4 Powertrain Control
Valve, LG5 Electronic Control
Module Primary Underhood Fuse Block
345

Fuse Usage
NOTE 3L18 Fuel, LG4 Powertrain Control
Valve, LG5 Electronic Control
Module
STUD A Spare
STUD B Spare
Relay Usage
NOTE 1LLY/L18 Fuel Pump Relay, LG4/LG5
Heated Fuel Relay
IGN B Ignition Relay
STARTER Starter Relay
HORN Horn Relay
IGN A Ignition Relay
PTO/ECU*Power Take-Off/Engine Control Unit
(*Diesel 7.8L LG4)
REVERSE Reverse Relay
NEUTRAL
STARTNeutral Start (LG4 Allison Automatic
Transmission Series 3000/3500)
Fuse Usage
IGN 1 Ignition 1
IGN 4 Ignition 4
IGN 3 Ignition 3
BATT/HAZ Battery/Hazard Warning Flashers
HEADLAMP Headlamps
LIGHTING Interior/Exterior Lamps
HVAC Climate Control System
NOTEC4/C5 Electric Brake,
C6/C7/C8 Brake Lamps Secondary Underhood
Fuse Block
346

Capacities and Specications
The following approximate capacities are given in English and metric conversions.
SeePart C: Recommended Fluids and Lubricants on page 397for more information.
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R134aFor the air conditioning system refrigerant charge
amount, see the refrigerant caution label located
under the hood. See your dealer for more
information.
Cooling System – C4/C5 Models
6.6L Automatic Transmission 27.3 qt 25.8 L
8.1L Automatic Transmission 29.8 qt 28.2 L
8.1L Manual Transmission 30.1 qt 28.5 L
Cooling System – C6/C7/C8 Automatic Transmission
7.2L Engine (hp 207 - 230) 31.4 qt 29.7 L
7.2L Engine (hp 250 - 300) 31.2 qt 29.5 L
Isuzu 6H Engine (hp 200 - 215) 33.7 qt 31.9 L
Isuzu 6H Engine (hp 230 - 275) 33.3 qt 31.5 L
8.1L Engine (hp 225 - 295) 32.5 qt 30.8 L
Cooling System – C6/C7/C8 Manual Transmission
7.2L 207 - 230 hp Engine 29.3 qt 27.7 L
7.2L 207 - 230 hp Engine with A/C and Increased Cooling 33.0 qt 31.2 L
347

ApplicationCapacities
English Metric
7.2L 250 - 300 hp Engine 32.8 qt 31.0 L
7.2L 250 - 300 hp Engine with A/C and Increased Cooling 33.3 qt 31.5 L
Isuzu 6H 200 - 230 hp Engine 31.6 qt 29.9 L
Isuzu 6H 200 - 230 hp Engine with A/C and Increased
Cooling35.3 qt 33.4 L
Isuzu 6H 250 - 300 hp Engine 34.9 qt 33.0 L
Isuzu 6H 250 - 300 hp Engine with A/C and Increased
Cooling35.4 qt 33.5 L
8.1L 225 - 295 hp Engine 33.3 qt 31.5 L
8.1L with A/C and Increased Cooling 34.9 qt 33.0 L
Engine Oil with Filter
6.6L 14.6 qt 13.8 L
7.2L 30.0 qt 28.4 L
Isuzu 6H
123.8 qt 22.5 L
8.1L 10.0 qt 9.4 L
Check fill level on the oil indicator after initial fill to make sure it is actually full. Oil level may vary depending on
vehicle option content.
1Additional oil is required with auxiliary oil filter systems. Make sure to add enough extra oil to fill the auxiliary oil
filter system. For vehicles equipped with the LUBERFINER 750-C, add 14 quarts (13.25 L).
348

Engine Specications
Engine RPO Type
6.6L V8 DURAMAX
®LLY Common Rail Fuel System
7.2L L6 Caterpillar
®C7 LG5Hydraulic/Electronic Unit Injector
Fuel System
7.8L Isuzu 6H LG4 Common Rail Fuel System
8.1L V8 VORTEC™ L18Single Port Fuel Injector Fuel
System
Normal Maintenance Replacement Parts
Replacement parts identified by name, part number, or specification can be obtained from your dealer.
Part GM Part Number ACDelco®Part Number
Air Compressor Filter
Haldex compressor (8.1L Engine Only)88915425 A507CF
Engine Air Cleaner/Filter
6.6L; 8.1L (C4/C5 Models) 88937527 A2032C
7.2L; Isuzu 6H (C6/C7/C8 Models) with Standard
Air Cleaner88937525 A2031C
7.2L; Isuzu 6H (C6/C7/C8 Models) with Heavy Duty
Air Cleaner88937525
1A2031C
8.1L (C6/C7/C8 Models) with Heavy Duty Air Cleaner 88937525 A2031C
8.1L (C6/C7/C8 Models) with Standard Air Cleaner 88937545 A2034C
352

Part GM Part Number ACDelco®Part Number
Engine Oil Filter
6.6L 88917036 PF2232
7.2L — 1R-1807††
Isuzu 6H 94037791 —
8.1L 25324052 PF454
Fuel Filter
6.6L 97385488 TP1298A
7.2L — 1R-0751††
Isuzu 6H 94392474 —
8.1L (NG6/NK1) 21998364 —
8.1L (All others) — S3202†
Power Steering Fluid Filter 88892858 —
Secondary Fuel Filter
6.6L — —
7.2L 25014274 TP915D
7.2L (KUK) 88983117 TP1519
7.2L (NWB) 15618921 —
Isuzu 6H 25014274 TP915D
Isuzu 6H (KUK) 88983117 TP1519
8.1L (K28 and standard U-Haul) 25014476 TP1247
353

Engine Drive Belt Routing
Air conditioning compressor (A).
Dual Generators (B).Air conditioning compressor (A).
Air brake compressor (B).
8.1L V8 Engine (C4, C5)
8.1L V8 Engine (C6,C7,C8)
355

Dual Generators (A). Air conditioning compressor (A).
6.6L V8 DURAMAX®Diesel EngineIsuzu 6H Diesel Engine
356