2007 CHEVROLET EXPRESS CARGO VAN Owners Manual

Electrical System
Add-On Electrical Equipment
Notice:Do not add anything electrical to your
vehicle unless you check with your dealer
rst. Some electrical equipment can damage
your vehicle and the damage would not
be covered by your warranty. Some add-on
electrical equipment can keep other
components from working as they should.
Your vehicle has an air bag system. Before
attempting to add anything electrical to your
vehicle, seeServicing Your Airbag-Equipped
Vehicle on page 96.
Headlamp Wiring
The headlamp wiring is protected by fuses in the
engine compartment fuse block. An electrical
overload will cause the lamps to flicker 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 and a fuse. If the motor overheats
due to heavy snow, etc., the wiper will stop
until the motor cools. Although the circuit is
protected from electrical overload, overload due
to heavy snow, etc., may cause wiper linkage
damage. Always clear ice and heavy snow from
the windshield before using the windshield wipers.
If the overload is caused by some electrical
problem and not snow, etc., be sure to get it fixed.
Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected
from short circuits by a combination of fuses
and circuit breakers. This greatly reduces
the chance of fires caused by electrical problems.
Look at the silver-colored band inside the fuse.
If the band is broken or melted, replace the fuse.
Be sure you replace a bad fuse with a new
one of the identical size and rating.
393

Floor Console Fuse Block
The floor console fuse block is located under the
driver’s seat.
Fuse Usage
1 Spare
2 Outside Rear View Mirror
3 Courtesy Lamp/SEO
Fuse Usage
4 Left Rear Stop/Turn Signal
5 Cargo Locks
6 Right Rear Stop/Turn Signal
7 Driver Locks
8Stop/Center High Mounted
Stop Lamp
9 Climate Control 1
10 Climate Control
11 Brakes
12 Heated Mirror/Defogger
13 Right Rear Blower
14 Driver Turn Mirror
15 Door Locks
16 Upfitter Park
17 Not Available
18 Left Rear Park Lamp
19 Pass Turn Mirror
20 Right Rear Park Lamp
394

Fuse Usage
21 Trailer Park Lamp
22 Front Park Lamp
32 Auxiliary 1
33 Auxiliary 2
Relays Usage
23 Window Retained Accessory Power
24 Auxiliary
25 Rear Window Defogger
26 Courtesy Lamp
27 Cargo Unlock
28 Driver Unlock
29 Park Lamp
30 Door Locks
31 Passenger Unlock
Circuit Breaker Usage
34 Power Window
Engine Compartment Fuse Block
The fuse block is located in the engine
compartment on the driver’s side of the vehicle.
Fuse Usage
1 Radio Battery
2Powertrain Control Module
Battery (Gas), FOH, Engine Control
Module, Transmission Control
Module Battery (Diesel)
3 Left Rear Turn Lamp
4 Right Rear Turn Lamp
395

Fuse Usage
5 Back-up Lamps Trailer Wiring
6 Ignition 0
7 Stoplamp
8 Rear Defogger/Heated Mirror
9Right Daytime Running
Lamp/Turn Signal
10Left Daytime Running
Lamp/Turn Signal
11 Truck Body Control Module 4
12 Fuel Pump
13 Trailer
14 Hazard Flashers
15 Horn
16 Truck Body Control Module 3
17 Trailer Stop/Turn Signal
18 Truck Body Control Module 2
19 Truck Body Control Module
20 Remote Function Actuator
21 Engine 2 (Gas), Spare (Diesel)
22 Ignition EFuse Usage
23 Engine 1
24Truck Body Control Module
Ignition 1
25 Spare (Gas), Fuel Heater (Diesel)
26 Inside Rearview Mirror
27 Crankcase
28Brake Transmission Shift
Interlock System
29 Auxiliary Power Outlets
30 Cigarette Lighter
31 Instrument Panel Cluster
32 Air Conditioning
33Spare (Gas), Engine Control
Module (Diesel)
34Canister Vent Solenoid (Gas),
Rear Fog Lamps (Diesel)
35 SPARE
36Brake Transmission Shift
Interlock, Vehicle Back-Up
37 Airbag
396

Fuse Usage
38Powertrain Control Module Ignition 1
(Gas), Engine Control Module,
Transmission Control Module,
Glow Plug Control Module Ignition 1
(Diesel)
39Oxygen Sensor B (Gas),
Spare (Diesel)
40Oxygen Sensor A (Gas),
Spare (Diesel)
41 Windshield Wipers
42 Right Headlamp - Low Beam
43 Left Headlamp - Low Beam
44 Left Headlamp - High Beam
45 Right Headlamp - High Beam
46Truck Body Controller- Accessory
(Gas), Truck Body Controller,
Transmission Control Module
Accessory (Diesel)
47 Front Windshield Wiper
48Anti-lock Brakes, Vehicle Stability
Enhancement System
49 Ignition A
50 TrailerFuse Usage
51 Climate Control Blower
52 Ignition B
63Spare (Gas), Engine Control
Module Actuator (Diesel)
64 Spare
Relays Usage
53 Windshield Wiper
54 Air Conditioning
55Spare (Gas), Rear Fog
Lamps (Diesel)
56 Headlamp - High Beam
57 Fuel Pump
58 Headlamp - Low Beam
59 Horn
SPARE (G),
ECM (D)Spare (Gas), Engine
Control Module (Diesel)
STRTR Starter
Circuit Breaker Usage
PWR SEAT Power Seat
397

Capacities and Specications
The following approximate capacities are given in English and metric conversions. SeeRecommended
Fluids and Lubricants on page 415for more information. When adding, be sure to fill to the appropriate
level or as recommended in this manual.
See refrigerant charge label under the hood for charge capacity information and requirements.
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
4300 V6 11.0 qt 10.4 L
4800 V8, 5300 V8, 5300 V8 Flexible Fuel 13.4 qt 12.7 L
6000 V8 14.8 qt 14.0 L
Cooling System with Rear Heat
4300 V6 14.0 qt 13.2 L
4800 V8, 5300 V8, 5300 V8 Flexible Fuel 16.4 qt 15.5 L
6000 V8 17.8 qt 17.0 L
398

ApplicationCapacities
English Metric
Engine Oil with Filter
4300 V6 4.5 qt 4.3 L
4800 V8, 5300 V8, 5300 V8 Flexible Fuel 6.0 qt 5.7 L
6000 V8 6.0 qt 5.7 L
Fuel Tank
Standard Tank (Passenger and Cargo) 31.0 gal 117.3 L
Standard Tank (Cab and Chassis) 33.0 gal 124.9 L
Optional Tank (Cab and Chassis)* 57.0 gal 215.7 L
* 159 inch (4 039 mm) wheelbase or 177 inch (4 496 mm) wheelbase only
Wheel Nut Torque 140 ft lb
190Y
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this
manual. Recheck fluid level after filling.
399

Engine Specications
Engine VIN Code Transmission Spark Plug Gap
VORTEC™ 4300 V6 X Automatic 0.060 inches (1.52 mm)
VORTEC™ 4800 V8 V Automatic 0.040 inches (1.01 mm)
VORTEC™ 5300 V8 T Automatic 0.040 inches (1.01 mm)
VORTEC™ 5300 V8
Flexible FuelZ Automatic 0.040 inches (1.01 mm)
VORTEC™ 6000 V8 U Automatic 0.040 inches (1.01 mm)
400