Avalanche, Sierra, Silverado, C&K Series, 1999-2005

Maintenance Intervals

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SCHEDULED MAINTENANCE INTERVALS - DIESEL ENGINES
GENERAL MOTORS C/K SERIES PICKUP, SIERRA & SILVERADO DIESEL
To be servicedType of serviceVehicle mileage interval (x1000)
    581015202325303538404550535560656870758083
Air intake systemS/I     X   X     X     X   X     X     X   X  
Automatic transmission fluid -REvery 50,000 miles                                          
Brake systemS/IXX   X   X   X   X   X   X   X   X   X   X
Chassis & suspension grease pointsLX   XXX   XXX   XXX   XXX   XXX  
Cooling fan operationS/I     X   X     X     X   X     X     X   X  
Crankcase depression regular valve system hosesS/I                               X            
CV-joint boots & axle sealsS/IX   XXX   XXX   XXX   XXX   XXX  
EGR system -S/I                               X            
Engine coolantREvery 150,000 miles                                          
Engine cooling system hoses & radiatorS/I & CInitially at 100,000 miles, then every 50,000 miles                                          
Engine oil & filterRX   XXX   XXX   XXX   XXX   XXX  
Front wheel bearings -S/I & L               X               X            
Fuel filterR               X               X            
Rear/front axle fluid levelS/IX   XXX   XXX   XXX   XXX   XXX  
Rotate tiresS/IXX   X   X   X   X   X   X   X   X   X   X
Shields & underhood insulation -S/I     X   X     X     X   X     X     X   X  
1R: Replace S/I: Inspect and service, if necessary L: Lubricate C: Clean
2- Vehicles with a GVWR of 8500 lbs or more only.
3- If equipped.
4- 2-wheel drive models only.
5FREQUENT OPERATION MAINTENANCE (SEVERE SERVICE)
SCHEDULED MAINTENANCE INTERVALS
GENERAL MOTORS AVALANCHE, SIERRA & SILVERADO GASOLINE
To be servicedType of serviceVehicle mileage interval (x1000)
    7.51522.53037.54552.56067.57582.59097.5100150
Engine oil & filterRXXXXXXXXXXXXX    
Chassis lubricationS/IXXXXXXXXXXXXX    
Oil Life MonitorS/IXXXXXXXXXXXXX    
Front/Rear Axle FluidS/I -XXXXXXXXXXXXX    
CV joints & axle sealsS/IXXXXXXXXXXXXX    
Rotate tiresS/IXXXXXXXXXXXXX    
Passenger Compartment Air FilterR   X   X   X   X   X   X      
Underhood Sound ShieldS/IX   X   X   X   X   X   X    
Fuel filterR       X       X       X      
Automatic transmission fluid & filterR -                           X  
Engine accessory drive beltS/I               X              
Fuel Tank, cap and linesS/I               X              
EGR SystemS/I               X              
EVAP SystemS/I               X              
Spark plugsR                           X  
Spark Plug WiresS/I                           X  
PCV ValveS/I                           X  
CoolantR                             X
Air cleaner filterR       X       X       X      
1R: Replace S/I: Service or Inspect
2- If the vehicle is used for continuous trailer towing, change the fluid in the rear axle after the first 500 miles, then, every 7,500 miles
3- Vehicles over 8,600 lbs. GVWR: every 50,000 miles
4FREQUENT OPERATION MAINTENANCE (SEVERE SERVICE)
5- 50% or more of the vehicle operation is in 32C (90F) or higher temperatures, or constant operation
6in temperatures below 0C (32F).
SCHEDULED MAINTENANCE INTERVALS
1999-01 DENALI, DENALI XL, ESCALADE, SUBURBAN, TAHOE, YUKON & YUKON XL WITH GASOLINE ENGINES
To be servicedType of serviceVehicle mileage interval (x1000)
    7.51522.53037.54552.56067.57582.59097.5105112.5120
Accessory drive beltS/I               X               X
Auto trans fluid -REvery 50,000 miles                              
Brake systemS/IXXXXXXXXXXXXXXXX
Chassis & suspension grease pointsLXXXXXXXXXXXXXXXX
Cooling fan operationS/I   X   X   X   X   X   X   X   X
CV-joint boots & axle sealsS/IXXXXXXXXXXXXXXXX
EGR systemS/I               X               X
Engine coolantREvery 150,000 miles                              
Engine oil & filterRXXXXXXXXXXXXXXXX
EVAP systemS/I               X               X
Front wheel bearings -S/I & L       X       X       X       X
Fuel filterR               X               X
Fuel systemS/I               X               X
Rear/front axle fluid levelS/IXXXXXXXXXXXXXXXX
Rotate tiresS/IXXXXXXXXXXXXXXXX
Shields & underhood insulation -S/I   X   X   X   X   X   X   X   X
Spark plugsREvery 100,000 miles                              
Spark plug wiresS/IEvery 100,000 miles                              
1R: Replace S/I: Inspect and service, if necessary L: Lubricate
2- 2-wheel drive models only.
3- Vehicles with a GVWR or 8500 lbs. or more only.
4FREQUENT OPERATION MAINTENANCE (SEVERE SERVICE)
5Shields & underhood insulation (vehicles w/GVWR over 8500 lbs. only): inspect every 15,000 miles.
6EVAP system: inspect every 60,000 miles.
7EGR system: inspect every 60,000 miles.
8PCV system: inspect every 100,000 miles.
SCHEDULED MAINTENANCE INTERVALS
VEHICLES WITH DIESEL ENGINES
To be servicedType of serviceVehicle mileage interval (x1000)
    58101520232530353840455053556065687075808385909598
Air intake systemS/I     X   X     X     X   X     X     X   X     X    
Automatic transmission fluid -REvery 50,000 miles                                                  
Brake systemS/IXX   X   X   X   X   X   X   X   X   X   X   X   X
Chassis & suspension grease pointsLX   XXX   XXX   XXX   XXX   XXX   XXX  
Cooling fan operationS/I     X   X     X     X   X     X     X   X     X    
Crankcase depression regular valve system hosesS/I                               X                    
CV-joint boots & axle sealsS/IX   XXX   XXX   XXX   XXX   XXX   XXX  
EGR system -S/I                               X               X    
Engine coolantREvery 150,000 miles                                                  
Engine cooling system hoses & radiatorS/I & CInitially at 100,000 miles, then every 50,000 miles                                                  
Engine oil & filterRX   XXX   XXX   XXX   XXX   XXX   XXX  
Front wheel bearings -S/I & L               X               X               X    
Fuel filterR               X               X               X    
Rear/front axle fluid levelS/IX   XXX   XXX   XXX   XXX   XXX   XXX  
Rotate tiresS/IXX   X   X   X   X   X   X   X   X   X   X   X   X
Shields & underhood insulation -S/I     X   X     X     X   X     X     X   X     X    
1R: Replace S/I: Inspect and service, if necessary L: Lubricate C: Clean
2- Vehicles with a GVWR of 8500 lbs or more only.
3- If equipped.
4- 2-wheel drive models only.
5FREQUENT OPERATION MAINTENANCE (SEVERE SERVICE)
SCHEDULED MAINTENANCE INTERVALS
denali, denali xl, suburban, tahoe, yukon, yukon xldiesel
To be servicedType of serviceVehicle mileage interval (x1000)
    58101520232530353840455053556065687075808385909598
Air intake system-/I     X   X     X     X   X     X     X   X     X    
Automatic transmission fluid -REvery 50,000 miles                                                  
Brake system-/IXX   X   X   X   X   X   X   X   X   X   X   X   X
Chassis & suspension grease points-X   XXX   XXX   XXX   XXX   XXX   XXX  
Cooling fan operation-/I     X   X     X     X   X     X     X   X     X    
Crankcase depression regular valve system hoses-/I                               X                    
CV-joint boots & axle seals-/IX   XXX   XXX   XXX   XXX   XXX   XXX  
EGR system --/I                               X               X    
Engine coolantREvery 150,000 miles                                                  
Engine cooling system hoses & radiator-/I & -Initially at 100,000 miles, then every 50,000 miles                                                  
Engine oil & filterRX   XXX   XXX   XXX   XXX   XXX   XXX  
Front wheel bearings --/I & -               X               X               X    
Fuel filterR               X               X               X    
Rear/front axle fluid level-/IX   XXX   XXX   XXX   XXX   XXX   XXX  
Rotate tires-/IXX   X   X   X   X   X   X   X   X   X   X   X   X
Shields & underhood insulation --/I     X   X     X     X   X     X     X   X     X    
1R: Replace S/I: Inspect and service, if necessary L: Lubricate C: Clean
2A Vehicles with a GVWR of 8500 lbs or more only.
3B If equipped.
4C 2-wheel drive models only.
SCHEDULED MAINTENANCE INTERVALS
denali, denali xl, suburban, tahoe, yukon, yukon xlgasoline
To be servicedType of serviceVehicle mileage interval (x1000)
    7.51522.53037.54552.56067.57582.59097.5105112.5120
Accessory drive belt-/I               X               X
Automatic transmission fluid -REvery 50,000 miles                              
Brake system-/IXXXXXXXXXXXXXXXX
Chassis & suspension grease points-XXXXXXXXXXXXXXXX
Cooling fan operation-/I   X   X   X   X   X   X   X   X
CV-joint boots & axle seals-/IXXXXXXXXXXXXXXXX
EGR system-/I               X               X
Engine coolantREvery 150,000 miles                              
Engine oil & filterRXXXXXXXXXXXXXXXX
EVAP system-/I               X               X
Front wheel bearings --/I & -       X       X       X       X
Fuel filterR               X               X
Fuel system-/I               X               X
Rear/front axle fluid level-/IXXXXXXXXXXXXXXXX
Rotate tires-/IXXXXXXXXXXXXXXXX
Shields & underhood insulation --/I   X   X   X   X   X   X   X   X
Spark plugsREvery 100,000 miles                              
Spark plug wires-/IEvery 100,000 miles                              
1R: Replace S/I: Inspect and service, if necessary L: Lubricate
2A Vehicles with a GVWR or 8500 lbs. or more only.
3B 2-wheel drive models only.
MAINTENANCE I AND II SERVICE SCHEDULES
avalanche, express & savana
ServiceMaintenance IMaintenance II
Lubricate the body components.Lubricate all key lock cylinders, hood latch assemblies, secondary latches, pivots, spring anchor and release pawl, hood and door hinges, rear folding seats and liftgate hinges. Frequent lubrication may be required when exposed to a corrosive environment, refer to Fluid and Lubricant Recommendations. Applying dielectric silicone grease GMP/N12345579 (CanadianP/N1974984) or equivalent on the weatherstrips with a clean cloth.---X
Inspect the transaxle fluid level and add fluid as needed.   X
Inspect the suspension and steering components.Inspect the front and rear suspension and the steering system for damaged, loose or missing parts, or signs of wear. Inspect power steering lines and hoses for proper hook-up, binding, leaks, cracks, chafing, etc.   X
Inspect the throttle system for interference or binding and for damaged or missing parts. Replace the parts as needed. Replace any components that have high effort or excessive wear. Do not lubricate the accelerator or the cruise control cables.   X
Replace the passenger compartment air filter.   X
1When the CHANGE ENGINE OIL light appears, certain services and inspections are required.
MAINTENANCE I AND II SERVICE SCHEDULES
sierra and silverado
ServiceMaintenance IMaintenance II
Change the engine oil and filter. Reset the oil life system.XX
Visually inspect the vehicle for leaks or damage. A fluid loss in the vehicle system could indicate a problem. Inspected, repair and add fluid to the system if necessary.XX
Inspect the engine air cleaner filter. If necessary, replace the filter.XX
Rotate the tires. Inspect the tire inflation pressures and the tire wear.XX
Visually inspect the brake lines and hoses for proper hook-up, binding, leaks, cracks, chafing, etc. Inspect the disc brake pads for wear and the rotors for surface condition. Inspect the drum brake linings for wear or cracks. Inspect other brake parts, including drums, wheel cylinders, calipers, parking brake, etc. Inspect the parking brake adjustment.XX
Inspect the engine coolant and the windshield washer fluid levels. Add fluid as needed.XX
Inspect the suspension and steering components. Inspect the front and rear suspension and the steering system for damaged, loose or missing parts, or signs of wear. Inspect the power steering lines and the hoses for proper hook-up, binding, leaks, cracks, chafing, etc.   X
Visually inspect the coolant hoses and replace the hoses if they are cracked, swollen or deteriorated. Inspect all pipes, fittings and clamps; replace with GM parts as needed. To help ensure proper operation, a pressure test of the cooling system and pressure cap and cleaning the outside of the radiator and air conditioning condenser is recommended at least once a year.   X
Inspect the wiper blades for wear or cracking.   X
Inspect the restraint system components.Ensure the safety belt reminder light and all the belts, buckles, latch plates, retractors and anchorages are working properly. Look for any other loose or damaged safety belt system parts. If you see anything that might keep a safety belt system from working correctly, repair or replaced the damaged part. Replace torn or frayed safety belts, refer to Operational and Functional Checks in Seat Belts. Inspect for any opened or broken air bag coverings, and repair or replace as needed. The air bag system does require regular maintenance.   X
Lubricate the body components.Lubricate all key lock cylinders, hood latch assemblies, secondary latches, pivots, spring anchor and release pawl, hood and door hinges, rear folding seats and liftgate hinges. Frequent lubrication may be required when exposed to a corrosive environment, refer to Fluid and Lubricant Recommendations.Applying dielectric silicone grease GM P/N 12345579 (Canadian P/N 1974984) or equivalent on the weatherstrips with a clean cloth.   X
Inspect the transaxle fluid level and add fluid as needed.   X
Inspect the suspension and steering components.Inspect the front and rear suspension and the steering system for damaged, loose or missing parts, or signs of wear. Inspect power steering lines and hoses for proper hook-up, binding, leaks, cracks, chafing, etc.   X
Inspect the throttle system for interference or binding and for damaged or missing parts. Replace the parts as needed. Replace any components that have high effort or excessive wear. Do not lubricate the accelerator or the cruise control cables.   X
Replace the passenger compartment air filter.   X
1When the CHANGE ENGINE OIL light appears, certain services and inspections are required.

Additional Maintenance Services



ADDITIONAL MAINTENANCE SERVICES
2004-05 Buick Century & Regal
To be servicedType of serviceVehicle mileage interval (x1000)
    255075100120150
Air cleaner filterR   X   X   X
Accessory drive beltI           X
Auto. Trans. Fluid and FilterAR   X   X   X
Cooling system hoses and clampsS/I           X
Engine coolantR           X
Fuel systemIXXXXXX
Exhaust system & heat shieldsS/IXXXXXX
Spark plugsR       X    
1R: Replace S/I: Inspect and service, if necessary
2- Replace if any of the following conditions are met:
3Heavy city traffic where the outside temperature regularly reaches 32C (90F) or higher
ADDITIONAL MAINTENANCE SERVICES
2004-05 Pontiac Grand Prix
To be servicedType of serviceVehicle mileage interval (x1000)
    255075100125150
Air cleaner filterR   X   X   X
Accessory drive beltI           X
Auto. Trans. Fluid and FilterAR   X   X   X
Cooling system hoses and clampsS/I           X
Engine coolantR           X
Fuel systemIXXXXXX
Exhaust system & heat shieldsS/IXXXXXX
Supercharger oil levelS/IXXXXXX
Spark plugs and wiresR       X    
1R: Replace S/I: Inspect and service, if necessary
2- Replace if any of the following conditions are met:
3Heavy city traffic where the outside temperature regularly reaches 32C (90F) or higher
ADDITIONAL MAINTENANCE SERVICES
2004-05 Chevrolet Impala & Monte Carlo
To be servicedType of serviceVehicle mileage interval (x1000)
    255075100125150
Air cleaner filterR   X   X   X
Accessory drive beltI           X
Auto. Trans. Fluid and FilterAR   X   X   X
Cooling system hoses and clampsS/I           X
Engine coolantR           X
Fuel systemIXXXXXX
Exhaust system & heat shieldsS/IXXXXXX
Supercharger oil levelS/IXXXXXX
Spark plugs and wiresR       X    
1R: Replace S/I: Inspect and service, if necessary
2- Replace if any of the following conditions are met:
3Heavy city traffic where the outside temperature regularly reaches 32C (90F) or higher
ADDITIONAL MAINTENANCE SERVICES
2004-05 Chevrolet Venture, Oldsmobile Sillouette, Pontiac Montana
To be servicedType of serviceVehicle mileage interval (x1000)
    255075100125150
Air cleaner filterR   X   X   X
Accessory drive beltI           X
Auto. Trans. Fluid -R   X   X   X
Cooling system hoses and clampsS/I           X
Engine coolantR           X
Fuel systemIXXXXXX
Exhaust system & heat shieldsS/IXXXXXX
Spark plugs and wiresR       X    
1R: Replace S/I: Inspect and service, if necessary
2- Replace if any of the following conditions are met:
3Heavy city traffic where the outside temperature regularly reaches 32C (90F) or higher
4To reset the CHANGE ENGINE OIL LIGHT:
51. With the ignition key in RUN but the engine off, repeatedly push the trip/reset button until OIL is
62. Once OIL is displayed, push and hold the trip/reset button for five seconds. The number will disappear
7If the CHANGE ENGINE OIL message comes back on when you start your vehicle, the engine oil life

Introduction




NOTE
Unless otherwise specified all information regarding gasoline engine service procedures also apply to flexible fuel (gasoline/alcohol or -gasohol-) engines.

 
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