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Service Replacement Part and Filter Recommendations
- Diesel Engines
Engine
VIN
Oil Filter
Air Cleaner
Fuel Filter
Surge Tank
Cap
6SL
S
PF1218
A1236C
TP 1006
RC33
6.5L
F
PF1218
A 1236C
TP 1 006
RC33
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 GM dealer. For additional information, see
your “Warranty and Owner Assistance Information’’ booklet.
NOTICE:
R-134A refrigerant is not compatible with R-12 refrigerant in
an air conditioning system. R-12 in an R-134A system will cause
compressor failure, refrigerant oil sludge, or poor air
conditioning system performance.
Air Conditioning Refrigerant Capacity
TYPE
Refrigerant R-134A
Refrigerant
R- 134A
QTY
Front A/C 3.0 lbs. (1.360 kg)
Front and Rear A/C 4.25 Ibs. (1.927
kg)
6-79
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Every 30,000 Miles (50 000 km)
Air Cleaner Filter Replacement
Spark Plug Replacement
Fuel Filter Replacement
Cooling System Service (or every
24 months, whichever occurs first)
Every 50,000 Miles (83 000 km)
Automatic Transmission Service (severe conditions only)
Every 60,000 Miles (100 000 km)
Engine Accessory Drive Belt Inspection
Spark Plug Wire Inspection
Engine Timing Check Fuel Tdnk, Cap and Lines Inspection
I
Schedule lI Definition - Gasoline Engines With Light Duty
Emissions
Follow Schedule 11 orzly if none of the conditions from Schedule I is true.
Every 7,500 Miles (12 500 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 7,500 Miles (12 500 km) - Then Every 15,000 Miles (25 000 km)
Tire Rotation
7-S
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Every 30,000 Miles (50 000 km)
Cooling System Service (or every 24 months, whichever occurs first)
Spark Plug Replacement
Fuel Filter Replacement
Air Cleaner Filter Replacement Front Wheel Bearing Repack
Every 50,000 Miles (83 000 km)
Automatic Transmission Service (severe conditions only)
Every 60,000 Miles (100 000 km)
Spark Plug Wire Inspection
Engine Accessory Drive Belt Inspection
Fuel Tank, Cap and Lines Inspection
Engine Timing Check
Schedule 1 Definition - Gasoline Engines With Heavy Duty
Emissions
Follow Maintenance Schedule I if any one of these is true for your vehicle:
e
e
e
e
Most trips are less than 5 to 10 miles (8 to 16 km). This is particularly
important when outside temperatures are below freezing.
Most trips include extensive idling (such as frequent driving
in stop and
go traffic).
You operate
your vehicle in dusty areas or off-road frequently.
You frequently tow
a trailer or use a carrier on top of your vehicle.
Schedule
I should also be followed if the vehicle is used for delivery
service, police, taxi, or other commercial application.
Schedule I Intervals - Gasoline Engines with Heavy Duty
Emissions
Every
3,000 Miles (5 000 km)
Engine Oil and Filter Change (or every 3 months, whichever occurs first)
Chassis Lubrication (or every
3 months, whichever occurs first)
Drive Axle Service
7-6
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At 6,000 Miles (10 000 km) - Then Every 12,000 Miles (25 000 km)
Tire Rotation
Every 12,000 Miles (20 000 km)
Air Cleaner Filter Inspection, if Driving in Dusty Conditions
Front Wheel Bearing Repack (or at Each Brake Relining) (2-Wheel Drive Only)
Fuel Filter Replacement
Engine Accessory Drive Belt Inspection
Shields and Underhood Insulation Inspection
Thermostatically Controlled Engine Cooling Fan Check (or every
12 months, whichever occurs first)
Every 24,000 Miles (40 000 km)
Cooling System Service (or every 24 months, whichever occurs first)
Air Cleaner Filter Replacement
Engine Timing Check
Thermostatically Controlled Air Cleaner Inspection
Air Intake System Inspection
Every 27,000 Miles (45 000 km)
Spark Plugs Replacement
Every 50,000 Miles (83 000 km)
Automatic Transmission Service
Every 60,000 Miles (100 000 km)
Spark Plug Wire Inspection
Exhaust
Gas Recirculation (EGR) System Inspection
Fuel
Tmk, Cap and Lines Inspection
Evaporative Control System Inspection
Electronic Vacuum Regulator Valve (EVRV) Inspection
7-7
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Schedule I1 Definition - Gasoline Engines With Heavy Duty
Emissions
Follow Schedule I1 O~IIJ- if none of the conditions from Schedule 1 is true.
Schedule 11 Intervals - Gasoline Engines with Heavy Duty
Emissions
Every
6,000 Miles (10 000 km)
Engine Oil and Filter Change (or every 3 months, whichever occurs first)
Chassis Lubrication (or every
3 months, whichever occurs first)
Drive Axle Service
At 6,000 Miles (10 000 km) - Then Every 12,000 Miles (20 000 km)
Tire Rotation
Every 12,000 Miles (20 000 km)
Engine Accessory Drive Belt Inspection
Shields and Underhood Insulation Inspection
Thermostatically Controlled Engine Cooling Fan Check (or every
12 months, whichever occurs first)
Every 24,000 Miles (40 000 km)
Cooling System Service (or every 24 months, whichever occurs first)
Air Cleaner Filter Replacement
Front Wheel Bearing Repack (or at Each Brake Relining) (2-Wheel Drive
Only
1
Fuel Filter Replacement
Engine Timing Check
Thermostatically Controlled Air Cleaner Inspection
Air Intake System Inspection
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Schedule I lntervals - Diesel Engines
Every
2,500 Miles (4 000 km)
Engine Oil and Filter Change (or every 3 months, whichever occurs first)
Chassis Lubrication (or every
3 months, whichever occurs first)
Air Cleaner Filter Inspection,
if Driving in Extremely Dusty or Dirty
(Off-Road) Conditions
Every 5,000 Miles (8 000 km)
Drive Axle Service
Every 7,500 Miles (12 000 km)
Air Cleaner Filter Inspection, if Driving in Dusty Conditions
At 7,500 Miles (72 000 km) - Thea Every 75,000 Miles (24 000 km)
Tire Rotation
Every 10,000 Miles (16 000 km)
Shields and Underhood Insulation Inspection
Thermostatically Controlled Engine Cooling Fan Check (or every
12 months, whichever occurs first)
Air Intake System Inspection
Every 15,000 Miles (24 000 km)
Air Cleaner Filter Replacement
Front Wheel Bearing Repack (or at Each Brake Relining) (2-Wheel Drive Only)
Every 30,000 Miles (50 000 km)
Fuel Filter Replacement
Cooling System Service (or every
24 months, whichever occurs first)
Every 50,000 Miles (80 000 km)
Automatic Transmission Service
7-10
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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
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Maintenance Schedule I - Gasoline Engines With
Light Duty Emissions
~~
(Continued)
0
0
Inspect spark plug wires . An Emission Control Service.
Replace air cleaner filter. Replace filter more often under dusty
conditions.
An Emission Control Service.
Inspect fuel tank, cap and lines for damage or leaks . Inspect fuel cap
gasket for any damage. Replace parts as needed. An
Emission Control
Sewice.
T
DATE SERVICED BY: ACTUAL MILEAGE
-
Maintenance Schedule II - 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 (I 00 000 km) at the same intervals.
Footnotes
T 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.
*4: Drive axle service:
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).
0 Standard Differential - Check fluid level and add fluid as needed at
every engine oil change. If driving in dusty areas or towing a trailer,
drain fluid and refill every
15,000 miles (25 000 km).
0 More frequent lubrication may be required for heavy-duty or off-road
use.
7-27
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