coolant GMC ENVOY 1998 Owner's Manual

A 50/50 mixture of water and DEX-COOL@ coolant will:
0 Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 265 “F ( 129°C).
0 Protect against rust and corrosion.
0 Help keep the proper engine temperature.
Let the warning lights and gages work as
they should.
NOTICE:
When adding coolant, it is important that you use
only
DEX-COOL@ (silicate-free) coolant.
If coolant other than DEX-COOL is added to the
system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
0- at
30,000 miles (50 000 km) or 24 months,
whichever occurs
first. Damage caused by the use
of coolant other than DEX-COOL@ is not
covered by your new vehicle warranty.
What to Use
Use a mixture of one-half clean water (preferably
distilled) and one-half
DEX-COOL@ coolant which
won’t damage aluminum
parts. If you use this mixture,
you don’t need to add anything else.
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like 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 wouldn’t
get the overheat warning. Your engine could
catch fire and you or others could be burned.
Use
a 50/50 mixture of clean water and
DEX-COOL@ coolant.
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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.
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-
A CAUTION:
Turning the radiator pressure cap when the
engine and radiator are hot can allow steam and
scalding liquids to blow out and burn
you badly.
With the coolant recovery tank, you
will almost
never have to add coolant
at the radiator. Never
turn the radiator pressure cap
-- even a
little
-- when the engine and radiator are hot.
Add coolant mixture at the recovery tank, but be careful
not to spill it.
A CAUTION:
I
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
and it will burn
if the engine parts are hot
enough. Don’t spill coolant on
a hot engine.
Radiator Pressure Cap
NOTICE:
Your radiator cap is a 15 psi (105 kPa)
pressure-type cap and must be tightly installed to
prevent coolant
loss and possible engine damage
from overheating. Be sure the arrows on the cap
line
up with the overflow tube on the radiator
filler neck.
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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.
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Windshield Washer Fluid
What to Use
Open the cap labeled WASHER FLUID ONLY with
the washer symbol on
it. Add washer fluid until the tank
is full.
When you need windshield washer fluid, be sure to read
the manufacturer’s instructions before use. If
you will be
operating your vehicle
in an area where the temperature
may fall below freezing, use a fluid that has sufficient
protection against freezing.
Adding Washer Fluid
NOTICE:
0
0
0
0
When using concentrated washer fluid,
follow the manufacturer’s instructions for
adding water.
Don’t mix water with ready-to-use washer
fluid. Water can cause the solution to freeze
and damage your washer fluid tank and
other parts
of the washer system. Also,
water doesn’t clean
as well as washer fluid.
Fill your washer fluid tank only
three-quarters full when it’s very cold. This
allows
for expansion if freezing occurs,
which could damage the tank if it is
completely full.
Don’t use engine coolant (antifreeze)
in
your windshield washer. It can damage
your washer system and paint.
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I Short Trip/City Maintenance Schedule I
100,000 Miles (I66 000 km)
17 Inspect spark plug wires.
0 Replace spark plugs.
0 If you haven’t used your vehicle under severe service conditions listed
AFI Emission Control Service.
An Emission Control Service.
previously and, therefore, haven’t changed your autornatic transmission fluid,
change both the fluid and filter.
An Errzission Cmtd Service.
0 Inspect Positive Crankcase Ventilation (PCV) valve.
150,000 Miles (240 000 km)
0 Drain, flush and refill cooling system (or every 60 months since last service,
whichever occurs first). See “Engine Coolant”
in the Index for what to use.
Inspect hoses. Clean radiator, condenser, pressure cap and neck. Pressure
test
cooling system and pressure cap.
An Ernission Control Service.
DATE I
DATE I
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Long Tripmighway Maintenance Schedule
100,000 Miles (166 000 km)
0 Inspect spark plug wires.
0 Replace spark plugs.
0 If you haven't used your vehicle under severe service conditions listed
An Emission Control Service.
API Emission Control Service.
previously and, therefore, haven't changed your automatic transmission fluid,
change both the fluid and filter.
An Emission Control Service.
Inspect Positive Crankcase Ventilation (PCV) valve.
150,000 Miles (240 000 km)
0 Drain, flush and refill cooling system (or every 60 mon .ths since last service,
whichever occurs first)."'See "Engine Coolant"
in the Index for what to use.
DATE
DATE
MILEAGE
ACTUAL SERVICED BY
Inspect hoses. Clean radiator, condenser, pressure cap and neck. Pressure test I I
the cooling system and pressure cap.
An Emission Corztrol Service.
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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.
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Part D: Recommended Fluids
and Lubricants
NOTE: Fluids and lubricants identified below by name,
part number or specification may be obtained from
your dealer.
USAGE
Engine Oil
Engine Coolant
Hydraulic Brake
System
FLUIDLUBRICANT
Engine Oil with the American
Petroleum Institute Certified For
Gasoline Engines “Starburst” symbol of the proper viscosity. To
determine the preferred viscosity
for your vehicle’s engine, see
“Engine Oil” in the Index.
50/50 mixture of clean water
(preferably distilled) and use
only
GM Goodwrench@ DEX-COOL@
or Havoline@ DEX-COOL@
Coolant. See “Engine Coolant’’
in
the Index.
Delco Supreme
1 1 @ Brake Fluid
(GM Part No. 12377967 or
equivalent DOT-3 Brake Fluid).
USAGE
Parking Brake
Cable Guides
Power Steering System
Automatic
Transmission
Key Lock
Cylinders
Chassis
Lubrication
Differential,
Front and Rear
Axle
FLUIDLUBRICANT
Chassis Lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements of
NLGI
## 2, Category LB or
GC-LB.
GM Power Steering Fluid (GM
Part
No. 1052884 - 1 pint,
10500 17 - 1 quart, or equivalent).
DEXRON@-I11 Automatic
Transmission Fluid.
Multi-Pu
ose Lubricant,
Superlube
% (GM Part
No. 1234624 1 or equivalent).
Chassis Lubricant
(GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements
of
NLGI # 2, Category LB or
GC-LB.
Axle Lubricant (GM Part
No. 1052271) or SAE 8OW-90
GL-5 Gear Lubricant.
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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
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