radiator GMC SIERRA 1998 User Guide

“VORTEC” 7400 Engine
A. Battery
B. Coolant Recovery Tank
C. Air Cleaner
D. Radiator Cap
E. Air Filter Restriction Indicator
F. Engine Oil Dipstick
G. Automatic Transmission L. Clutch Fluid Reservoir
Dipstick (If Equipped)
(If Equipped)
H. Engine Oil Fill M. Windshield Washer
I. Fan Fluid Reservoir
J. Power Steering Fluid Reservoir N. Fusemelay Center
K. Brake Fluid Reservoir
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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
-- 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.
CAUTION:
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
If your vehicle has a diesel engine, see “Checking
Coolant”
in the Diesel Engine Supplement.
,:. . .,. ..... I.. .;> .:... ...,,.. ::l:. ..
.. .
The coolant recovery tank is located on the passenger’s
side at the rear corner
of the engine compartment.
When your engine
is cold, the coolant level should be at
the
COLD mark, or a little higher. When your engine is
warm,
the level should be up to the HOT mark, or a
little higher.
6-30
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Adding Coolant
If you need more coolant, add the proper DEX-COOL@
coolant mixture at the coolant recovery tank.
,
A CAUTION:
'krning 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:
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.
6-31
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Radiator Pressure Cap
(Gasoline Engine)
The radiator pressure cap must be tightly installed with
the arrows
on the cap lined up with the overflow tube on
the radiator filler neck.
~~~ ~
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.
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.
When you replace your thermostat, an
AC@ thermostat
is recommended.
6-32
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Short TripKity Maintenance Schedule -- Gasoline Engines
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery service.
Manual transmission fluid doesn’t require change.
previously and, therefore, haven‘t changed your automatic transmission fluid,
change both the fluid and filter.
Manual transmission fluid doesn’t require change.
17 Inspect Positive Crankcase Ventilation (PCV) valve.
Arz Emission Control Service.
0 If you haven’t used your vehicle under severe service conditions listed
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.
DATE
I MILEAGE ACTUAL I SERVICED BY:
Inspect hoses. Clean radiator, condenser, pressure cap and neck. Pressure test I I
cooling system and pressure cap.
AH Emission Control Service.
7-27
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1 Long Tripmighway Maintenance Schedule -- Gasoline Engines
150,000 Miles (240 000 km) DATE
Drain, flush and refill cooling system (or every 60 months since last service,
Inspect hoses. Clean radiator, condenser, pressure cap
and neck. Pressure test
the cooling system and pressure cap.
An Emissim Control Sc~l-~?ic.r.
whichever occurs first). See "Engine Coolant" in the Index for what to use. MILEAGE
7-39
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Part C: Periodic
Maintenance Inspections
Listed below are inspections and services which should
be performed at least twice a year (for instance, each
spring and fall).
You should let your dealer’s service
department or other qualified service center
do these
jobs. Make sure any necessary repairs are completed
at once..
Proper procedures to perform these services may be
found in a service manual. See ”Service and Owner
Publications”
in the Index.
Steering and Suspension Inspection
Inspect the front and rear suspension and steering
system for damaged, loose or missing parts, signs of
wear or lack of lubrication. Inspect
the power steering
lines and hoses for proper hook-up, binding, leaks,
cracks, chafing, etc.
Exhaust System Inspection
Inspect the complete exhaust system. Inspect the body
near the exhaust system.
Look for broken, damaged,
missing or out-of-position parts as well as open seams,
holes, loose connections or other conditions which could
cause
a heat build-up in the floor pan or could let
exhaust fumes into the vehicle. See ”Engine Exhaust” in
the Index.
Engine Cooling System Inspection
Inspect the hoses and have them replaced if they are
cracked, swollen or deteriorated. Inspect all pipes,
fittings and clamps; replace as needed. Clean the outside
of the radiator and air conditioning condenser. To help
ensure proper operation, a pressure test of the cooling
system and pressure cap is recommended at least once
a year.
Throttle System Inspection
Inspect the throttle system for interference or binding,
and for damaged or missing parts. Replace parts as
needed. Replace any components that have high effort
or excessive wear.
Do not lubricate accelerator and
cruise control cables.
7-44
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Pregnancy. Use of Safety Belts .................... 1-22
Problems on the Road ............................ 5- 1
Protecting Exterior Bright Metal Parts ............... 6-67
PTO
......................................... 4-61
Publications. Service and Owner
.............. 8- 1 I . 8- I2
Radiator
..................................... 5-20
Radiator Pressure Cap
........................... 6-32
Radio Reception
................................ 3-23
Radios
........................................ 3-7
Rain. Driving
In ................................ 4-28
Rear
Reading
Lamps
................................ 2-44
Axle
.................................. 6-26.7-47
Outside Seat Position
..................... 1-34. 1-38
Safety Belt Comfort Guides ..................... 1-40
Seat Passengers
.............................. 1-34
Towing
..................................... 5-12
Window Defogger ............................. 3-6
RearSeat
.................................. 1-7.1-8
Rearview Mirror
................................ 2-45
Electrochromic Day/Night
...................... 2-46
Inside Day/Night
............................. 2-45
Reclining Seatbacks
.............................. 1-4
Recommended Fluids and Lubricants
............... 7-46
Recovery
Hooks ................................ 5-37
Recovery Tank, Coolant
.......................... 5- 15
Recreational Vehicle Towin?
...................... 4-4 1
Refrigerants, Air Conditionlng .................... 6-79 Replacement
Bulbs
................................. 6.39. 6.76
Wheel
...................................... 6-59
Parts
....................................... 6-78
Replacing Safety Belts ........................... 1-70
Reporting Safety Defects ......................... 8-10
Restraints Checking
................................... 1-70
Child
....................................... 1-45
Head
........................................ 1-5
Replacing Parts After
a Crash ................... 1-70
System Check ................................ 7-41
Right Front Passenger Position
.................... 1-23
Roadside Assistance .............................. 8-5
Roadside Assistance. Canadian
..................... 8-7
Rocking Your Vehicle ........................... 5-37
Roof Marker Lamp Bulb Replacement
.............. 6-47
Rotation
. Tires ............................ 6-53. 6-54
Safety Bell Extender ............................ 1-70
Safety Belts .................................... 1-9
Adults ...................................... 1-14
Care
....................................... 6-64
Children .................................... 1-42
Driver Position
............................... 1-14
Extender
.................................... 1-70
Incorrect Usage
.................... 1 . 17. 1.68. 1-69
Center
Passenger Position
...................... 1-32
How to Wear Properly ......................... 1-14
9-8
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