1995 CHEVROLET SUBURBAN oil pressure

Washing Your Vehicle
The best way to preserve your vehicle’s finish is to keep it clean by washing
it often with lukewarm or cold water.
Don’t wash your vehicle
in the direct rays of the sun. Don’t use strong soaps
or chemical detergents. Use liquid hand, dish or car washing (mild
detergent) soaps. Don’t use cleaning agents that are petroleum based, or
that
contain acid or abrasives. All cleaning agents should be flushed promptly
and
not allowed to dry on the surface, or they could stain. Dry the finish
with a soft, clean chamois or a 100% cotton towel to avoid surface scratches
and water spotting.
High pressure car washes may cause water
to enter your vehicle.
Finish Care
Occasional waxing or mild polishing of your vehicle by hand may be
necessary to remove residue from the paint finish.
You can get GM
approved cleaning products from your dealer. (See “Appearance Care and
Materials”
in the Index.)
Your vehicle has
a “basecoat/clearcoat” paint finish. The clearcoat gives
more depth
and gloss to the colored basecoat. Always use waxes and
polishes that are non-abrasive and made for
a basecoatklearcoat paint
finish.
NOTICE:
Machine compounding or aggressive polishing on a
basecoatklearcoat paint finish may dull the finish or leave swirl
marks.
Foreign materials such as calcium chloride and other salts, ice melting
agents, road oil and tar, tree sap, bird droppings, chemicals from industrial
chimneys, etc. can damage your vehicle’s finish
if they remain on painted
surfaces. Wash the vehicle
as soon as possible. If necessary, use
non-abrasive cleaners that are marked safe for painted surfaces to remove
foreign matter.
Exterior painted surfaces are subject
to aging, weather and chemical fallout
that can take their toll over
a period of years. You can help to keep the paint
finish looking new by keeping your vehicle garaged or covered whenever
possible.
6-68
ProCarManuals.com

Every 60,000 Miles (100 000 km)
Crankcase Depression Regulator Valve (CDRV) Svstem Check
Engine Accessory Drive Belt Inspection
Fuel Tank, Cap and Lines Inspection
Evaporative Control System Inspection
Exhaust Gas Recirculation (EGR) System Inspection
(if equipped)
Exhaust Pressure Regulator Valve Inspection
Follow Schedule I1
onZy if none of the conditions from Schedule I is true.
Every 5,000 Miles (8 000 km)
Engine Oil and Filter Change (or every 12 months, whichever occurs first)
Chassis Lubrication (or every
12 months, whichever occurs first)
Drive Axle Service
At 5,000 Miles (8 000 km) - Then Every 10,000 Miles (16 000 km)
Tire Rotation
Every 10,000 Miles (16 000 krn)
Shields and Underhood Insulation Inspection
Air Intake System Inspection
Thermostatically Controlled Engine Cooling Fan Check
(or every
12 months, whichever occurs first)
Every 30,000 Miles (48 000 km)
Cooling System Service (or every 24 months, whichever occurs first)
Front Wheel Bearing Repack (or at Each Brake Relining) (2-Wh\
eel Drive Only)
Fuel Filter Replacement
Air Cleaner Filter Replacement
7-1 1
ProCarManuals.com

Every 50,000 Miles (83 000 km)
Automatic Transmission Service
Every 60,000 Miles (100 000 km)
Crankcase Depression Regulator Valve (CDRV) System Inspection
Engine Accessory Drive Belt Inspection
Exhaust Gas Recirculation (EGR) System Inspection
(if equipped)
Exhaust Pressure Regulator Valve Inspection
Maintenance Schedule I - Gasoline Engines With
Light Duty Emissions
The services shown in this schedule up to 60,000 miles (100 000 km) should
be performed after
60,000 miles (100 000 km) at the same intervals.
Footnotes
The California Air Resources Board has determined that the failure to
perform this maintenance item will
not nullify the emission warranty or
limit recall liability prior
to the completion of vehicle useful life. We,
however, urge that all recommended maintenance services be performed at
the indicated intervals and the maintenance be recorded.
** Drive axle service:
0 Locking Differential - Drain fluid and refill at first engine oil change.
At subsequent oil changes, check fluid level and add fluid as needed. If
driving
in dusty areas or towing a trailer, drain fluid and refill every
15,000 miles (25 000 km).
Standard Differential - Check fluid level and add fluid as needed at
every
oil change. If driving in dusty areas or towing a trailer, drain
fluid and refill every
15,000 miles (25 000 km).
More frequent lubrication may be required for heavy-duty or off-road
use.
ProCarManuals.com

Maintenance Schedule I - Gasoline Engines With
Light Duty Emissions
30,000 Miles (50 000 km)
0
0
0
0
0
0
0
0
Change engine oil and filter (or every 3 months, whichever occurs
first).
An Emission Control Service.
Lubricate the front suspension, king pin bushings, steering linkage,
transmission shift linkage, transfer case shift linkage, parking brake
cable guides, rear driveline center splines, front axle propshaft splines,
brake pedal springs and clutch pedal springs. Ball joints and king pin
bushings should
not be lubricated unless their temperature is 10” F
(-12” C), or higher. When weather is cold, let the ball joints and king
pin bushings warm
up before lubrication or they could be damaged.
Perform each of the listed lubrication service items at this mileage
interval (or every
6 months, whichever occurs first).
Check redfront axle fluid level and add
fluid as needed. Check
constant velocity joints and axle seals for leaking.‘$*
Drain, flush and refill cooling system (or every
24 months, 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.
For 2-Wheel Drive vehicles only: Clean and repack the front wheel
bearings (or
at each brake relining, whichever occurs first).
Replace spark plugs.
An Emission Control Service.
Replace air cleaner filter. Replace filter more often under dusty
conditions.
An Em.ission Control Service.
Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
rotation pattern and additional information.
DATE SERVICED BY: ACTUAL MILEAGE
L
7-1 9
ProCarManuals.com

Maintenance Schedule I - Gasoline Engines With
Light Duty Emissions
(Continued)
0 Check readfront axle fluid level and add fluid as needed. Check
constant velocity joints and axle seals for leaking.*:$
I DATE I ACTUALMILEAGE I SERVICED BY: I
60,000 Miles (100 000 km)
0 Change engine oil and filter (or every 3 months, whichever occurs
first).
An Emission Control Service.
0 Lubricate the front suspension, king pin bushings, steering linkage,
transmission
shift linkage, transfer case shift linkage, parking brake
cable guides, rear driveline center splines, front axle propshaft splines,
brake pedal springs and clutch pedal springs. Ball joints and king pin
bushings should
not be lubricated unless their temperature is 10” F
(-12” C), or higher. When weather is cold, let the ball joints and king
pin bushings warm up before lubrication or they could be damaged.
Perform each of the listed lubrication service items at this mileage
interval (or every
6 months, whichever occurs first).
17 Check readfront axle fluid level and add fluid as needed. Check
constant velocity joints and axle seals for leaking.**
0 For 2-Wheel Drive vehicles only: Clean and repack the front wheel
bearings (or at each brake relining, whichever occurs first).
0 Inspect engine accessory drive belt. An Emission Control Service.
0 Drain, flush and refill cooling system (or every 24 months, 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.
0 Replace spark plugs. An Emission Control Service.
(Continued)
7-26
ProCarManuals.com

I
Maintenance Schedule II - Gasoline Engines With
Light Duty Emissions
30,000 Miles (50 000 km)
0
0
0
0
0
0
0
Change engine oil and filter (or every 12 months, whichever occurs
first).
An Emission Control Service.
Lubricate the front suspension, king pin bushings, steering linkage,
transmission shift linkage, transfer case shift linkage, parking brake
cable guides, rear driveline center splines, front axle propshaft splines,
brake pedal springs and clutch pedal springs. Ball joints and king pin
bushings should
not be lubricated unless their temperature is 10" F
(-12" C), or higher. When weather is cold, let the ball joints and king
pin bushings warm up before lubrication
or they could be damaged.
Perform each
of the listed lubrication service items at this mileage
interval (or every
12 months, whichever occurs first).
Check readfront axle
fluid level and add fluid as needed. Check
constant velocity joints and axle seals for leaking.**
For 2-Wheel Drive vehicles only: Clean and repack the
front wheel
bearings (or at each brake relining, whichever occurs first).
Drain,
flush and refill cooling system (or every 24 months, 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.
Replace spark plugs. An Emission Control Service.
Replace air cleaner filter. An Emission Control Service.
I DATE I ACTUALMILEAGE I SERVICED BY:
ProCarManuals.com

Maintenance Schedule I - Gasoline Engines Heavy
Duty Emissions
48,000 Miles (80 000 km)
0
0
0
0
0
0
Change engine oil and filter (or every 3 months, whichever occurs
first).
An Emission Control Service.
Lubricate the front suspension, king pin bushings, steering linkage,
transmission shift linkage, transfer case shift linkage, parking brake
cable guides, rear driveline center splines, front axle propshaft splines,
brake pedal springs and clutch pedal springs.
Ball joints and king pin
bushings should
not be lubricated unless their temperature is 10” F
(-12” C), or higher. When weather is cold, let the ball joints and king
pin bushings warm up before lubrication or
they could be damaged.
Perform each
of the listed lubrication service items at this mileage
interval (or every 12 months, whichever occurs first).
Check readfront axle fluid level and add fluid
as needed. Check
constant velocity joints and axle seals for leaking.‘””
Drain, flush and refill the cooling system with new coolant (or every
24
months, whichever occurs first). See “Engine Coolant’’ in the Index for
what to use.
An Emission Control Service.
Also inspect the hoses and replace them if they are cracked, swollen or
deteriorated. Tighten all hose clamps (except constant tension clamps).
Remove debris and clean the outside of the radiator and air
conditioning condenser. Wash the radiator neck.
To ensure proper
operation, pressure test the radiator and cap.
Replace air cleaner filter. Replace filter more often under dusty
conditions.
An Emission Control Service.
For 2-Wheel Drive vehicles only: Clean and repack the front wheel
bearings (or at each brake relining, whichever occurs first).
Replace
fuel filter. Replace filter sooner if it is clogged.?
Adjust timing
to underhood label specifications. Inspect the inside and
outside
of the distributor cap and rotor for cracks, carbon tracking and
corrosion. Clean or replace
as needed. An Emission Control Service.
This is a Noise Emission Control Service.
If your vehicle has a thermostatically controlled air cleaner, inspect all
hoses and ducts for proper hook-up. Be sure the valve works properly.
An Emission Control Service. This is a Noise Emission Control
Service.
(Continued)
7-47
ProCarManuals.com

Maintenance Schedule II - Gasoline Engines With
Heavy Duty Emissions
1 Lvntinued)
0 Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
rotation pattern and additional information.
I DATE I ACTUALMILEAGE I SERVICED BY: I
24,000 Miles (40 000 km)
Change engine oil and filter (or every 12 months, whichever occurs
first).
An Emission Control Service.
0 Lubricate the front suspension, king pin bushings, steering linkage,
transmission shift linkage, transfer case shift linkage, parking brake
cable guides, rear driveline center splines, front axle propshaft splines,
brake pedal springs and clutch pedal springs.
Ball joints and king pin
bushings should not be lubricated unless their temperature
is 10” F
(-12” C), or higher. When weather is cold, let the ball joints and king
pin bushings warm up before lubrication or
they could be damaged.
Perform each of the listed lubrication service items
at this mileage
interval (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 Inspect engine accessory drive belts (or every 24 months, whichever
occurs first).
An Emission Control Service.
0 Drain, flush and refill cooling system (or every 24 months, 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.
Replace air cleaner filter. An Emission Control Service.
0 Replace fuel filter. An Emission Control Service.
DATE I ACTUALMILEAGE I SERVICED BY:
7-55
ProCarManuals.com