Page 232 of 340

NOTICE:
When adding coolant it is important that you use
DEX-COOL
TM (orange-colored, silicate-free)
coolant meeting
GM Specification 6277M.
If silicated coolant 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.
What
to Use
Use a mixture of one-half
clean water (preferably
distilled) and one-half
DEX-COOL TM (orange-colored,
silicate-free) antifreeze that meets
GM Specification
6277M, which won’t damage aluminum parts. Use
GM Engine Coolant Supplement (sealer) (GM Part
No. 3634621) with any complete coolant change. If you
use this mixture, you don’t need to add anything else.
A CAUl ,ON:
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 mix will. Your vehicle’s coolant warning
system is set for the proper coolant mix. With
plain water or the wrong mix, 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 mix of clean
water and DEX-COOL
TM (orange-colored,
silicate-free) antifreeze.
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Page 233 of 340
NOTICE:
If you use an improper coolant mix, your engine
could overheat and be badly damaged. The repair
cost wouldn’t be covered by your warranty. Too
much water in the mix 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 retailer check your cooling system.
NOTICE:
If you use the proper coolant, you don’t have to
add extra inhibitors or additives which claim to
imnrove 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.
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Page 234 of 340
Adding Coolant
If you need more coolant, add the proper mix at the
coolant recovery tank.
Add coolant mix at the recovery tank, but be careful not
to spill it.
'hrning 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 0- when the engine and radiator are hot. 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.
I
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Page 235 of 340
Radiator Pressure Cap
I
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.
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
6-23
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Page 297 of 340

I Short TripKity Maintenance Schedule I
100,000 Miles (144 000 km)
Cl 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 Emission Control Service.?
0 Inspect spark plug wires.
0 Replace spark plugs.
An Emission Control Service.
An Emission Control Service.
17 Change automatic transmission fluid and
filter
if the vehicle is mainly driven under
one or more of these conditions:
- In heavy city traffic where the outside
temperature regularly reac hes
90 O 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.
If you do not use your vehicle under uny of tlzese
conditions, the jluid
andji‘ltev do not require changing.
DATE ACTUAL MILEAGE SERVICED BY
7-27
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Page 307 of 340
97,500 Miles (162 500 km)
0 Change engine oil and filter (or every
12 months, whichever occurs first).
0 Lubricate chassis components; see
footnote
# (or every 12 months,
whichever occurs first).
0 Check readfront axle fluid level and add
fluid as needed. Check constant velocity
joints and axle seals for leaking.**
0 Rotate tires. See “Tire Inspection and
Rotation’’ in the Index for proper rotation
pattern and additional information.
An Emission Control Service.
,.
ACTUAL MILEAGE SERVICED BY:
I
100,000 Miles (166 000 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 the
cooling system and pressure cap.
An Emission Control Service.Jf
0 Inspect spark plug wires.
0 Replace spark plugs.
An Emission Control Service.
An Emission Control Service.
(Continued)
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Page 309 of 340

Part B: Owner Checks and Services
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
It is important for JOL~ or a service stcltion attendant to
pecform these underhood checks at each file1 .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.
Engine Coolant Level Check
Check the engine coolant level and add the proper
coolant mix
if necessary. See “Engine Coolant” in the
Index for further details.
Windshield Washer Fluid Level Check
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
50 hours of tape play. See “Audio Systems” in the
Index for further details.
7-39
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Page 315 of 340

Part D: Recommended Fluids and
Lubricants
NOTE: Fluids and lubricants identified below by name,
part number or specification may be obtained from your
GM retailer.
USAGE
Engine Oil
Engine Coolant
FLUID/LUBRICANT
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 GM
Goodwrench@ DEX-COOL” or
Havoline@ DEX-COOL
”
(orange-colored, silicate-free)
antifreeze conforming to GM
Specification 6277M. See “Engine
Coolant’’
in the Index.
USAGE
Coolant
Supplement
Sealer
Hydraulic Brake
System
Parking Brake
Cable Guides
Power Steering
System
Key Lock
Cylinders
FLUID/LUBRICANT
GM Part No. 3634621 or
equivalent
with a complete flush
and refill.
Delco Supreme
11 @ Brake Fluid
(GM Part
No. 1052535 or
equivalent
DOT-3 brake fluid).
Chassis lubricant
(GM Part
No. 1052497 or equivalent) or
lubricant meeting requirements of
NLGI Grade 2, Category
LB
or GC-LB.
GM Power Steering Fluid
(GM
Part No. 1052884 - 1 pt.,
1050017 - 1 qt., or equivalent).
DEXRON@-111 Automatic
Transmission Fluid.
Multi-Purpose Lubricant, Superlube@
(GM Part
No. 1234624 1
or equivalent).
7-45
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