1998 GMC ENVOY coolant level

NOTICE:
If you use an improper coolant mixture, your
engine could overheat and be badly damaged.
The repair cost wouldn’t be covered by your
warranty.
Too much water in the mixture can
freeze and crack the engine, radiator, heater core
and other parts.
If you have to add coolant more than four times a year,
have your dealer check your cooling system.
NOTICE:
If you use the proper coolant, you don’t have to
add extra inhibitors or additives which claim to
improve the system. These can be harmful.
Checking Coolant
When your engine is cold, the coolant level should be at
ADD, or a little higher. When your engine is warm, the
level should be up to
FULL HOT, or a little higher.
Adding Coolant
If you need more coolant, add the proper DEX-COOL@
coolant mixture at the cwolarzt recovery tank.
6-23
ProCarManuals.com

Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat stops the
flow
of coolant through the radiator until the coolant
reaches a preset temperature.
Power Steering Fluid
When to Check Power Steering Fluid
It is not necessary to regularly check power steering
fluid unless you suspect there is
a leak in the system or
you hear an unusual noise.
A fluid loss in this system
could indicate a problem. Have the system inspected
and repaired.
How To Check Power Steering Fluid
When the engine compartment is cool, wipe the cap and
the top
of the reservoir clean, then unscrew the cap and
wipe the dipstick with a clean rag. Replace the cap and
completely tighten it. Then remove the cap again and
look at the fluid level on the dipstick.
The level should be between the
ADD and FULL marks.
If necessary, add only enough fluid to bring the level up
to the proper range.
What to Use
To determine what kind of fluid to use, see
“Recommended Fluids and Lubricants” in the Index.
Always use the proper fluid. Failure to use the proper
fluid can cause leaks and damage hoses and seals.
6-25
ProCarManuals.com

Part B: Owner Checks an - Services Engine Coolant Level Check
Listed below 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.
Be sure any necessary repairs are completed at once.
Whenever any fluids or lubricants are added to your
vehicle, make sure they are the proper ones,
as shown in
Part D.
At Each Fuel Fill
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. See "Engine Oil" in the Index for
further details. Check
the engine coolant
level and add DEX-COOL'
coolant mixture
if necessary. See "Engine Coolant'' in
the Index for further details.
Windshield Washer Fluid Level Cl: -.
Check the windshield washer fluid level in the
windshield washer tank and add the proper fluid
if
necessary. See "Windshield Washer Fluid" in the Index
for further details.
At Least Once a Month
Tire Inflation Check
Make sure tires are inflated to the correct pressures. See
"Tires"
in the Index for further details.
Cassette Deck Service
Clean cassette deck. Cleaning should be done every
SO hours of tape play. See "Audio Systems" in the
Index for further details.
7-39
ProCarManuals.com

Climate Control System ........................... 3-2
Clock. Setting
................................... 3-8
Comfort Controls
................................ 3-2
Console Mounted CD Changer
.................... 3- 18
Content Theft-Deterrent
......................... 2- I 1
Control of a Vehicle .............................. 4-6
ConvenienceNet
............................... 2-46
Convex Outside Mirror
.......................... 2-42
Coolant
.................................. 5-14. 6.21
Coolant Heater. Engine .......................... 2- 16
Courtesy Transportation ........................... 8-8
Cruise Control
................................. 2-33
Customer Assistance Information
................... 8- 1
Customer Satisfaction Procedure .................... 8-2
Compact Disc Care
............................. 3-26
Dama. ue. Finish
............................... 6-52
Damage. Sheet Metal ............................ 6-5 1
Daytime Running Lamps ......................... 2-37
Dead Battery
................................... 5-3
Defects. Reporting Safety
........................ 8- IO
Defensive Driving ............................... 4-2
Defrosting
..................................... 3-6
Dimensions. Vehicle
............................ 6-62
Dome Lamps
.................................. 2-39
DoorLocks
..................................... 2-4
Drive
........................................ 2-19
Drive Axle Service
.............................. 7-44
Defogging
..................................... 3-6 Driver Information System
....................... 2-43
Driver Position
................................. i . 12
Driving
City
........................................ 4-31
Defensive
.................................... 4-2
Drunken ..................................... 4-3
Foreign Countries
.............................. 6-5
Freeway
.................................... 4-32
Guidelines
.................................. 4-14
Hill and Mountain Roads ....................... 4-34
In a Blizzard ................................. 4-38
Night
...................................... 4-27
Off-Road
................................... 4-15
OnCurves ...................................
4-9
Rainy Conditions ............................. 4-28
Snowy and Icy Conditions
...................... 4-36
Through Deep Standing Water
................... 4-30
WetRoads
.................................. 4-28
Winter
...................................... 4-36
With
a Trailer ................................ 4-48
Driving On Grades While Towing
a Trailer ........... 4-50
Drunken Driving
................................ 4-3
Electrical Equipment. Adding
............... 3.24. 6.54
Electrical System
............................... 6-54
Electrochomic Inside Day/Night Rearview Mirror
..... 2-40
Electronic Level Control
......................... 4-42
Engine
........................................ 6-9
Coolant Heater
............................... 2-16
Coolant Level Check
.......................... 7-39
Coolant Temperature Gage ..................... 2-66
9-3
ProCarManuals.com

Engine (Continued) .............................. 6-9
Exhaust
..................................... 2-24
FanNoise
................................... 5-20
Identification
................................ 6-54
OilLevelCheck
.............................. 7-39
Overheating
................................. 5-11
Specifications
................................ 6-60
Engine Compartment Fuse Block
.................. 6-58
Engineoil
.................................... 6-10
Adding
..................................... 6-11
Additives
................................... 6-13
Checking
................................... 6-11
Kindtouse
................................. 6-12
Pressure Gage
................................ 2-69
Used
....................................... 6-14
When to Change
.............................. 6- I3
Exhaust, Engine
................................ 2-24
Exit Lighting
.................................. 2-39
Express-Down Window
.......................... 2-29
Fabric Cleaning
............................... 6-46
Filling
a Portable Fuel Container .................... 6-7
FillingYourTank
................................ 6-5
Fi 1 ter
Air
........................................ 6-14
Remote Oil .................................. 6- 14
Finish Care .................................... 6-5 1
Finish Damage ................................. 6-52
Running While
Parked
......................... 2-25
Starting
..................................... 2-15
Engine Coolant
................................. 6-2 1
FirstGear ..................................... 2-20
Flashers. Hazard Warning
......................... 5-2
Flat Tire. Changing
............................. 5-21
Fluids and Lubricants
............................ 7-4.5
FogLampSwitch ............................... 2-38
Foreign Countries. Fuel ........................... 6-5
Four-wheel Drive
......................... 2-26. 6-20
French Language Manual 11
FrontAxle .................................... 6-21
Front Reading Lamps
....................... 2.39. 2.43
Front Storage Area .............................. 2-45
FrontTowing
................................... 5-9
Filling a Portable Container
...................... 6-7
Filling Your Tank
.............................. 6-5
Foreign Countries .............................. 6-5
Engine Compartment
.......................... 6-58
Instrument Panel
............................. 6-56
Fuses and Circuit Breakers
....................... 6-55
Gages
.. ...........................
Front Turn Signal Lamp Bulb Replacement .......... 6-33
Fuel
.......................................... 6-3
Cage
....................................... 2-72
Fuse Block
Engine Coolant Temperature
.................... 2-66
Fuel
....................................... 2-72
Engine Oil Pressure ........................... 2-69
GasCap
....................................... 6-5
Gate A-jar Light ................................ 2-71
GAWR
....................................... 4-40
Gear
Positions ................................. 2-18
9-4
ProCarManuals.com