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Downloaded from www.Manualslib.com manuals search engine How to Check
The proper fluid should be added if the level is below
the STEP mark on the reservoir. See the instructions
on the reservoir cap.
Rear Axle
When to Check and Change Lubricant
Refer to the Maintenance Schedule to determine how
often to check the lubricant and when to change
it.
See “Scheduled Maintenance Services” in the Index.
How to Check Lubricant
If the level is below the bottom of the filler plug hole,
you’ll need to add some lubricant. Add enough lubricant
to raise the level to the bottom of the filler plug hole.
What to Use
Standard Differential
Use Axle Lubricant (GM Part No. 12345977) or SAE
80W-90 GL-5 gear lubricant.
Limited-Slip Differential
To add lubricant when the level is low, use Axle
Lubricant (GM
Part No. 12345977). To completely refill
after draining, add
4 ounces (1 18 ml) of Limited-Slip
Differential Lubricant Additive
(GM Part No. 1052358).
Then fill to the bottom of the filler plug hole with Axle
Lubricant (GM
Part No. 12345977).
Engine Coolant
The cooling s stem in your vehicle is filled with
DEX-COOL engine coolant. This coolant is designed
to remain in your vehicle for
5 years or 150,000 miles
(240
000 km) whichever occurs first, if you add only
DEX-COOL’ extended life coolant.
B
The following explains your cooling system and how
to add coolant when it is low. If you have a problem
with engine overheating or
if you need to add coolant to
your radiator, see “Engine Overheating” in the Index.
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Page 286 of 402
Downloaded from www.Manualslib.com manuals search engine 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.
I 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, check the dipstick on the cap
of the coolant recovery tank. The coolant level should
be at
COLD, or a little higher. When your engine is
warm, the level
on the dipstick should be up to HOT, or
a little higher.
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Page 287 of 402

Downloaded from www.Manualslib.com manuals search engine If this light comes on, it
means you’re low
on
m
engine coolant.
5.7L V8 Engine Only
Adding Coolant to the Recovery Tank
If you need more coolant, add the proper DEX-COOL@
coolant mixture
ut the coolant recovery tank, but only
when your engine is cool.
If the tank is very low or
empty, also add coolant to the radiator. See “Engine
Overheating” in the Index for information. Add
coolant mixture at the recovery tank, but be careful
not
to spill it.
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. Never turn the pressure cap
-- even a
little -- 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.
Radiator Pressure Cap (All Engines)
~
NOTICE:
Your radiator cap is an 18 psi (124 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.
When you replace your radiator pressure cap, a GM cap
is recommended.
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Page 288 of 402

Downloaded from www.Manualslib.com manuals search engine 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, a
GM thermostat
is recommended.
Power Steering Fluid
The power steering fluid
reservoir is toward the
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
at the full cold mark. If necessary,
add only enough fluid to bring the level up to the mark.
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Page 329 of 402

Downloaded from www.Manualslib.com manuals search engine Length
Width Height
Wheelbase Front Tread
Rear Tread
Vehicle Dimensions
193.5 inches (49 1.5 cm)
74.1 inches (1 88.3 cm)
51.3 inches (130.3 cm) 10 1.1 inches
(256.6 cm)
60.7 inches (154.1 cm)
60.6 inches (153.9 cm)
Air Conditioning Refrigerants
Not all air conditioning refrigerants are the same.
If the air conditioning system in your vehicle needs
refrigerant, be sure the proper refrigerant is used. If
you’re not sure,
ask your dealer.
Replacement Parts
Air Cleaner Filter ...................... A1163C
Battery
............................... .75-60
Engine Oil Filter
VIN Engine Code
K .................... PF47
VIN Engine Code G .................... PF25
Fuel Filter ............................. GF578
PCV Valve
VIN Engine Code
K ................. CV892C
VIN Engine Code G
................. CV895C
Radiator Cap
........................... RC24
Spark Plug VIN Engine Code
K . . , . 41-921 (0.060 inch Gap)
VIN Engine Code G .... 41-931 (0.060 inch Gap)
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Page 351 of 402
Downloaded from www.Manualslib.com manuals search engine I Short Trip/City Maintenance Schedule I
100,000 Miles (166 000 km)
0 Inspect spark plug wires.
0 Replace spark plugs.
Cl If you haven’t used your vehicle under severe service conditions listed
An Emission Control Service.
An Emission Control Service.
previously and, therefore, haven’t changed your automatic transmission
fluid, change both the fluid and filter. Manual transmission fluid doesn’t
require change.
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 Emission Control Service.
I DATE I
DATE
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Page 361 of 402
Downloaded from www.Manualslib.com manuals search engine 100,000 Miles (1 66 000 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.
An Emission Control Service.
previously and, therefore, haven’t changed your automatic transmission
fluid, change both the fluid and filter. Manual transmission fluid doesn’t
require change.
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
the cooling system and pressure cap.
An Emission Control Service.
DATE I
DATE
7-31
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Downloaded from www.Manualslib.com manuals search engine 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 fo\
r
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.
Rear Axle Service
Check the gear lubricant level in the rear axle and add if
needed. See “Rear Axle” in the Index. A fluid loss may
indicate a problem. Check the axle and repair it if needed.
Brake System Inspection
Inspect the complete system. Inspect brake lines and hoses
for proper hook-up, binding, leaks, cracks, chafing, etc.
Inspect disc brake pads for wear and rotors for surface
condition. Inspect other brake parts, including calipers,
parking brake, etc. Check parking brake adjustment.
You
may need to have your brakes inspected more often if your
driving habits or conditions result in frequent braking.
7-36