1998 GMC ENVOY adding oil

1 h CAUTION:
Heater and radiator hoses, and other engine
parts, can be very hot. Don’t touch them.
If you
do, you can be burned.
Don’t run the engine if there is a leak.
If you run
the engine,
it could lose all coolant. That could
cause an engine fire, and you could be burned.
Get any leak fixed before you drive the vehicle.
NOTICE: I
Engine damage from running your engine
without coolant isn’t covered by your
1 warranty.
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 doesn’t, your vehicle needs service. Turn off
the engine.
How to Add Coolant to the Coolant
Recovery Tank
If you haven’t found a problem yet, but the coolant level
isn’t
at the ADD mark, add a 50/50 mixture of clean
brater (preferably distilled) and DEX-COOL@ engine
coolant at the coolant recovery tank. (See “Engine
Coolant”
in the Index for more information.)
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.
5-14
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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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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
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Net. Convenience .............................. 2-46 Over Things That Burn ........................ 2-24
Neutral
....................................... 2-19 Passing ..................................... 4-12
New Vehicle “Break-In”
......................... 2- 13 Passlock’ ..................................... 2-12
Nightvision
................................... 4-27 Payload ....................................... 4-42
Normal Maintenance Replacement Parts
............. 6-6 1 Periodic Maintenance Inspections .................. 7-43
Power
Odometer
.................................... 2-6 1
Off-Road Driving .............................. 4- 15
Off-Road Recovery
............................. 4- I 1
OnStar System ................................ 2-57
Ordering Owner and Service Publications
....... 8- I 1, 8- 12
Outside Mirror
Power Remote Control
......................... 2-41
Convex ..................................... 2-42
Overhead Console
.............................. 2-42
Oil. Engine
.................................... 6-10
Accessory Outlets ............................ 2-52
DoorLocks
................................... 2-5
Remote Control Mirror
........................ 2-41
Seat
......................................... 1-2
Steering
..................................... 4-9
Steering Fluid
................................ 6-25
Windows
................................... 2-28
Pregnancy. Use of Safety Belts
.................... 1 . 19
Problems on the Road
............................ 5-1
Publications. Service and Owner .............. 8- 1 1. 8. 12
Overheating Engine
............................. 5- 1 1
Owner Checks and Services ....................... 7-39 Radiator. Adding Coolant ....................... 5-17
Owner Publications
........................ 8- I 1. 8- 12 Radiator Pressure Cap ........................... 6-24
Radio Reception
................................ 3-23
Paint Spotting. Chemical 6-52
Park
......................................... 2-18
Shifting Into 2-21
Shifting Out
of 2-23
AtNight
2-11
Brake ...................................... 2-20
Brake Mechanism Check 7-42
Lots ....................................... 2-11
On Hills with a Trailer 4-50
Radios ........................ Cassette Tape Player ........................... 3-8
Cassette Tape Player Care 3.24. 7.39
CDChanger 3-18
Compact Disc Player 3-12
Compact Disc Player Care 3-26
Rear Seat Audio
.............................. 3-16
Setting the Clock 3-8
Theft-Deterrent Feature
........................ 3-21
Rain. Driving 4-28
................. ................................. ................................. ............................... .......................... Parking ...................... ....................................
.............................. .......................
.................................. ......................... RAP ......................................... 2-15
9-7
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