coolant temperature CHEVROLET SILVERADO 2007 1.G User Guide

Coolant Surge Tank Pressure Cap
Notice:If the pressure cap is not tightly
installed, coolant loss and possible engine
damage may occur. Be sure the cap is properly
and tightly secured.
The coolant surge tank pressure cap must be fully
installed on the coolant surge tank. SeeEngine
Compartment Overview on page 500for more
information on location.
Engine Overheating
If your vehicle has the DURAMAX®Diesel engine,
see the DURAMAX®Diesel manual for more
information.
You will nd a coolant temperature gage on your
vehicle’s instrument panel. SeeEngine Coolant
Temperature Gage on page 260.
In addition, you will nd ENGINE OVERHEATED
STOP ENGINE, ENGINE OVERHEATED IDLE
ENGINE, and ENGINE POWER IS REDUCED
messages in the Driver Information Center (DIC)
on the instrument panel. SeeDIC Warnings
and Messages on page 281.
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2. Then keep turning the pressure cap slowly,
and remove it.
3. Fill the coolant surge tank with the proper
mixture, to the FULL COLD mark.4. With the coolant surge tank pressure cap off,
start the engine and let it run until the engine
coolant temperature gage indicates
approximately 195°F (90°C).
By this time, the coolant level inside the
coolant surge tank may be lower. If the level
is lower, add more of the proper mixture
to the coolant surge tank until the level
reaches the FULL COLD mark.
5. Then replace the pressure cap. Be sure the
pressure cap is hand-tight and fully seated.
6. Verify coolant level after engine is shut off
and the coolant is cold. If necessary, repeat
coolant ll procedure Steps 1 through 6.
525

(e)Make sure the safety belt reminder light and all
your belts, buckles, latch plates, retractors, and
anchorages are working properly. Look for
any other loose or damaged safety belt system
parts. If you see anything that might keep a safety
belt system from doing its job, have it repaired.
Have any torn or frayed safety belts replaced. Also
look for any opened or broken airbag coverings,
and have them repaired or replaced. The
airbag system does not need regular maintenance.
(f)Lubricate all key lock cylinders, body door
hinges, hood latch assembly, secondary latch,
pivots, spring anchor, release pawl, tailgate hinges,
tailgate linkage, tailgate handle pivot points,
latch bolt, fuel door hinge, locks, and folding seat
hardware. More frequent lubrication may be
required when exposed to a corrosive
environment. Applying silicone grease on
weatherstrips with a clean cloth will make them
last longer, seal better, and not stick or squeak.
(g)Check vent hose at transfer case for kinks and
proper installation. Check to be sure vent hose
is unobstructed, clear, and free of debris.(h)Change automatic transmission uid and lter
if the vehicle Gross Vehicle Weight Rating
(GVWR) is over 8600 lbs or if the vehicle is mainly
driven under one or more of these conditions:
In heavy city traffic where the outside
temperature regularly reaches 90°F (32°C) or
higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police or delivery
service.
(i)Drain, ush, and rell cooling system. This
service can be complex; you should have
your dealer perform this service. See Engine
Coolant on page 514 for what to use. Inspect
hoses. Clean radiator, condenser, pressure cap,
and ller neck. Pressure test the cooling
system and pressure cap.
(j)A uid loss in any vehicle system could indicate
a problem. Have the system inspected and
repaired and the uid level checked. Add uid
if needed.
634

Cleaning (cont.)
Washing Your Vehicle.............................. 605
Weatherstrips........................................... 604
Windshield and Wiper Blades................... 606
Climate Control System......................236, 239
Dual Automatic......................................... 240
Outlet Adjustment..................................... 247
Clock.......................................................... 303
Collision Damage Repair............................. 660
Comfort Guides, Rear Safety Belt................. 42
Compass............................................171, 175
Content Theft-Deterrent............................... 130
Control of a Vehicle..................................... 380
Coolant
Engine Temperature Gage........................ 260
Heater, Engine......................................... 138
Surge Tank Pressure Cap........................ 517
Cooling System........................................... 521
Cruise Control............................................. 220
Cruise Control Light.................................... 267
Cupholder(s)................................................ 198
Customer Assistance Information
Courtesy Transportation........................... 657
Customer Assistance for Text
Telephone (TTY) Users......................... 652
Customer Assistance Offices.................... 652
Customer Satisfaction Procedure.............. 648Customer Assistance Information (cont.)
GM Mobility Reimbursement Program...... 653
Reporting Safety Defects to General
Motors.................................................. 665
Reporting Safety Defects to the
Canadian Government.......................... 665
Reporting Safety Defects to the
United States Government.................... 664
Roadside Assistance Program.................. 654
Service Publications Ordering
Information........................................... 666
D
Daytime Running Lamps............................. 224
Defensive Driving........................................ 376
Delayed Locking.......................................... 121
Disc, MP3..........................................341, 347
Doing Your Own Service Work.................... 489
Dome Lamp Override.................................. 228
Dome Lamps............................................... 228
Door
Delayed Locking...................................... 121
Locks....................................................... 120
Power Door Locks................................... 121
Programmable Automatic Door Locks....... 121
672

Door (cont.)
Rear Door Security Locks........................ 122
Rear Doors.............................................. 123
Driver
Position, Safety Belt................................... 28
Driver Information Center (DIC)................... 269
DIC Operation and Displays............270, 277
DIC Vehicle Customization....................... 291
DIC Warnings and Messages................... 281
Driving
At Night................................................... 409
City.......................................................... 414
Defensive................................................. 376
Drunken................................................... 377
Freeway................................................... 415
Hill and Mountain Roads.......................... 418
In Rain and on Wet Roads...................... 410
Off-Road.................................................. 392
Recovery Hooks....................................... 426
Rocking Your Vehicle to Get it Out.......... 425
Winter...................................................... 420
Dual Automatic Climate Control System....... 240
Dual Tire Operation..................................... 562
DVD
Rear Seat Entertainment System............. 357E
Electrical System
Add-On Equipment................................... 611
Center Instrument Panel Fuse Block........ 614
Fuses and Circuit Breakers...................... 612
Instrument Panel Fuse Block................... 612
Power Windows and Other Power
Options................................................. 611
Underhood Fuse Block............................. 615
Windshield Wiper Fuses........................... 611
Engine
Air Cleaner/Filter...................................... 507
Check and Service Engine Soon Light..... 262
Coolant.................................................... 514
Coolant Heater......................................... 138
Coolant Temperature Gage...................... 260
Drive Belt Routing.................................... 643
Engine Compartment Overview................ 500
Exhaust................................................... 169
Fan Noise................................................ 526
Oil ........................................................... 502
Oil Life System........................................ 505
Overheated Protection Operating Mode.... 520
Overheating............................................. 517
Starting.................................................... 136
673

Entry Lighting.............................................. 228
Event Data Recorders (EDR)...................... 659
Exit Lighting................................................ 228
Extender, Safety Belt..................................... 45
Exterior Lamps............................................ 223
F
Filter
Engine Air Cleaner................................... 507
Finish Damage............................................ 608
Fixed Mast Antenna.................................... 373
Flashers, Hazard Warning........................... 213
Flash-to-Pass.............................................. 216
Flat Tire...................................................... 579
Flat Tire, Changing...................................... 580
Flat Tire, Storing......................................... 596
Fluid
Automatic Transmission............................ 510
Power Steering........................................ 526
Windshield Washer.................................. 527
Fog Lamp
Fog .......................................................... 226
Fog Lamp Light........................................... 267
Four-Wheel Drive...............................149, 541
Four-Wheel-Drive Light................................ 267
Front Axle................................................... 543Fuel............................................................ 490
Additives.................................................. 492
California Fuel.......................................... 491
E85 (85% Ethanol)................................... 493
Filling a Portable Fuel Container.............. 497
Filling Your Tank...................................... 494
Fuels in Foreign Countries....................... 494
Gage....................................................... 268
Gasoline Octane...................................... 491
Gasoline Specications............................ 491
Low Warning Light................................... 269
Fuses
Center Instrument Panel Fuse Block........ 614
Fuses and Circuit Breakers...................... 612
Instrument Panel Fuse Block................... 612
Underhood Fuse Block............................. 615
Windshield Wiper..................................... 611
G
Gage
Engine Coolant Temperature.................... 260
Fuel......................................................... 268
Oil Pressure............................................. 265
Speedometer........................................... 250
674