heater CHEVROLET EXPRESS CARGO VAN 2007 1.G User Guide

When the engine is cold, the coolant level should
be at or above the COLD FILL mark. If it is
not, you may have a leak at the pressure cap or in
the radiator hoses, heater hoses, radiator, water
pump, or somewhere else in the cooling system.
{CAUTION:
Heater, fuel operated heater (FOH),
radiator hoses, and other engine parts,
can be very hot. Do not touch them.
If you do, you can be burned.
Do not run the engine if there is a leak.
If you run the engine, it could lose all
coolant. That could cause an engine re,
and you could be burned. Get any leak
xed before you drive the vehicle.
If there seems to be no leak, start the engine
again. See if the engine cooling fan speed
increases when idle speed is doubled by pushing
the accelerator pedal down. If it does not, your
vehicle needs service. Turn off the engine.Notice:Engine damage from running your
engine without coolant is not covered by
your warranty.
Notice:Using coolant other than DEX-COOL
®
may cause premature engine, heater core, or
radiator corrosion. In addition, the engine
coolant could require changing sooner, at
30,000 miles (50 000 km) or 24 months,
whichever occurs rst. Any repairs would
not be covered by your warranty. Always
use DEX-COOL
®(silicate-free) coolant in
your vehicle.
How to Add Coolant to the Coolant
Recovery Tank for Gasoline Engines
If your vehicle has a diesel engine, see
“How to Add Coolant to the Coolant Recovery
Tank” under “Van Models” in the Cooling System
section of the DURAMAX
®Diesel Supplement
for the proper coolant fill procedure.
318

If you have not found a problem yet, but the
coolant level is not at the COLD FILL mark,
add a 50/50 mixture of clean, drinkable water
and DEX-COOL
®engine coolant at the coolant
recovery tank. SeeEngine Coolant on page 312
for more information.
{CAUTION:
Adding only plain water to your cooling
system can be dangerous. Plain water, or
some other liquid such as alcohol, can
boil before the proper coolant mixture will.
Your vehicle’s coolant warning system is
set for the proper coolant mixture. With
plain water or the wrong mixture, your
engine could get too hot but you would
not get the overheat warning. Your engine
could catch re and you or others could
be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®coolant.Notice:
When using concentrated washer uid,
follow the manufacturer’s instructions
for adding water.
Do not mix water with ready-to-use washer
uid. Water can cause the solution to
freeze and damage your washer uid tank
and other parts of the washer system.
Also, water does not clean as well
as washer uid.
Fill the washer uid tank only
three-quarters full when it is very cold.
This allows for uid expansion if freezing
occurs, which could damage the tank if
it is completely full.
Do not use engine coolant (antifreeze) in
your windshield washer. It can damage
the vehicle’s windshield washer system
and paint.
Notice:In cold weather, water can freeze and
crack the engine, radiator, heater core and
other parts. Use the recommended coolant
and the proper coolant mixture.
319

If you add fluid when the linings are worn, then
you will have too much fluid when you get
new brake linings. You should add or remove
brake fluid, as necessary, only when work is
done on the brake hydraulic system.
{CAUTION:
If you have too much brake uid, it can
spill on the engine and/or fuel operated
heater parts, if equipped. If your vehicle
has a diesel engine and a fuel operated
heater, see “Fuel Operated Heater (FOH)”
in the diesel engine supplement. The uid
will burn if the engine is hot enough.
You or others could be burned, and your
vehicle could be damaged. Add brake
uid only when work is done on the brake
hydraulic system. See “Checking Brake
Fluid” in this section.
Refer to the Maintenance Schedule to determine
when to check the brake fluid. SeeScheduled
Maintenance (Gasoline Engine) on page 405.
Checking Brake Fluid
You can check the brake fluid without taking
off the cap.
Look at the brake fluid
reservoir. The fluid level
should be above MIN.
If it is not, have the brake
system checked to see
if there is a leak.
After work is done on the brake hydraulic system,
make sure the level is above the MIN but not
over the MAX mark.
326

These standards apply only to vehicles sold in
the United States.
Federal law prohibits the following acts or the
causing thereof:
1. The removal or rendering inoperative by
any person, other than for purposes of
maintenance, repair or replacement, of any
device or element of design incorporated into
any new vehicle for the purpose of noise
control, prior to its sale or delivery to
the ultimate purchaser or while it is in use; or
2. The use of the vehicle after such device or
element of design has been removed or
rendered inoperative by any person.
Among those acts presumed to constitute
tampering are the acts listed below.
Insulation:
•
Removal of the noise shields or any
underhood insulation.
Engine:
•
Removal or rendering engine speed governor,
if the vehicle has one, inoperative so as to
allow engine speed to exceed manufacturer
specifications.
Fan and Drive:
•
Removal of fan clutch, if the vehicle has one,
or rendering clutch inoperative.
•Removal of the fan shroud, if the vehicle
has one.
Air Intake:
•
Removal of the air cleaner silencer.
•Modification of the air cleaner.
Exhaust:
•
Removal of the muffler and/or resonator.
•Removal of the exhaust pipes and exhaust
pipe clamps.
Fuel Operated Heater (FOH) — Diesel
Engine:
•
Removal of the muffler.
339

Underbody Maintenance
Chemicals used for ice and snow removal
and dust control can collect on the underbody.
If these are not removed, corrosion and rust
can develop on the underbody parts such as
fuel lines, frame, floor pan, fuel operated
heater (FOH) and exhaust system even
though they have corrosion protection.
At least every spring, flush these materials
from the underbody with plain water. Clean
any areas where mud and debris can collect.
Dirt packed in close areas of the frame should
be loosened before being flushed. Your dealer
or an underbody car washing system can do
this for you.
Chemical Paint Spotting
Some weather and atmospheric conditions can
create a chemical fallout. Airborne pollutants can
fall upon and attack painted surfaces on the
vehicle. This damage can take two forms: blotchy,
ring-shaped discolorations, and small, irregular
dark spots etched into the paint surface.
Although no defect in the paint job causes this,
we will repair, at no charge to the owner, the
surfaces of new vehicles damaged by this fallout
condition within 12 months or 12,000 miles
(20 000 km) of purchase, whichever occurs first.
390

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

Clock
Radios with Radio Data
Systems (RDS)..................................... 189
Radios without Radio Data
Systems (RDS)..................................... 189
Collision Damage Repair............................. 435
Comfort Guides, Rear Safety Belt................. 37
Compass..................................................... 134
Control of a Vehicle..................................... 232
Coolant
Engine Temperature Gage........................ 178
Heater, Engine......................................... 123
Cooling System........................................... 317
Cruise Control............................................. 151
Cruise Control Light.................................... 184
Customer Assistance Information
Courtesy Transportation........................... 432
Customer Assistance for Text Telephone
(TTY) Users.......................................... 428
Customer Assistance Offices.................... 428
Customer Satisfaction Procedure.............. 424
GM Mobility Reimbursement Program...... 429
Reporting Safety Defects to
General Motors..................................... 439
Reporting Safety Defects to the Canadian
Government.......................................... 439Customer Assistance Information (cont.)
Reporting Safety Defects to the United
States Government............................... 438
Roadside Assistance Program.................. 430
Service Publications Ordering
Information........................................... 440
D
Daytime Running Lamps............................. 156
Daytime Running Lamps Indicator Light....... 185
Defensive Driving........................................ 228
Doing Your Own Service Work.................... 291
Dome Lamp Override.................................. 157
Dome Lamps............................................... 157
Door
60/40 Swing-Out Side Door...................... 112
Cargo Door Relocking.............................. 109
Locks....................................................... 108
Power Door Locks................................... 109
Rear Door Security Locks........................ 110
Rear Doors.............................................. 114
Sliding Side Door..................................... 111
Driver
Position, Safety Belt................................... 23
448

Driving
At Night................................................... 244
City.......................................................... 249
Defensive................................................. 228
Drunken................................................... 229
Freeway................................................... 250
Hill and Mountain Roads.......................... 254
In Rain and on Wet Roads...................... 246
Rocking Your Vehicle to Get it Out.......... 260
Winter...................................................... 256
Dual Tire Operation..................................... 355
E
EDR ............................................................ 441
Electrical System
Add-On Equipment................................... 393
Engine Compartment Fuse Block............. 395
Floor Console Fuse Block........................ 394
Fuses and Circuit Breakers...................... 393
Headlamp Wiring..................................... 393
Windshield Wiper Fuses........................... 393
Engine
Air Cleaner/Filter...................................... 308
Change Engine Oil Light.......................... 183
Check and Service Engine Soon Light..... 178
Coolant.................................................... 312Engine (cont.)
Coolant Heater......................................... 123
Coolant Temperature Gage...................... 178
Drive Belt Routing.................................... 418
Engine Compartment Overview................ 302
Exhaust................................................... 132
Fan Noise................................................ 323
Fuel Regulator......................................... 123
Oil ........................................................... 303
Oil Life System........................................ 306
Overheating............................................. 315
Reduced Power Light............................... 184
Running While Parked............................. 133
Starting.................................................... 122
Entry Lighting.............................................. 158
Event Data Recorders................................. 442
Exit Lighting................................................ 158
Extender, Safety Belt..................................... 40
Exterior Lamps............................................ 155
F
Filter
Engine Air Cleaner................................... 308
Finish Damage............................................ 389
Fixed Mast Antenna.................................... 226
Flashers, Hazard Warning........................... 146
449

Headlamps (cont.)
Halogen Bulbs......................................... 340
High/Low Beam Changer......................... 149
On Reminder........................................... 156
Heater......................................................... 160
Highbeam On Light..................................... 185
Highway Hypnosis....................................... 253
Hill and Mountain Roads............................. 254
Hood
Checking Things Under............................ 300
Release................................................... 300
Horn............................................................ 146
How to Use This Manual................................ 4
How to Wear Safety Belts Properly............... 22
I
Ignition Positions......................................... 120
Infants and Young Children, Restraints.......... 44
Inflation - Tire Pressure............................... 354
Instrument Panel
Overview.................................................. 144
Instrument Panel (I/P)
Brightness................................................ 157
Cluster..................................................... 167
J
Jump Starting.............................................. 330
K
Keyless Entry System................................. 104
Keys........................................................... 102
L
Labeling, Tire Sidewall................................. 347
Lamps
Dome....................................................... 157
Dome Lamp Override............................... 157
Reading................................................... 158
LATCH System
Child Restraints......................................... 54
Light
Airbag Off................................................ 170
Airbag Readiness..................................... 169
Anti-Lock Brake System Warning............. 176
Brake System Warning............................. 175
Change Engine Oil................................... 183
Charging System..................................... 174
Check Gages Warning............................. 185
Cruise Control.......................................... 184
451