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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 16 (ENGINE CONTROLS - SERVICE & ADJUSTMENT SPECIFICATIONS)QUICK-SERVICESERVICE INTERVALS & SPECIFICATIONS
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Service Intervals & Specifications

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Service Intervals & Specifications
WARNING: This page is about a different car, the 2003 Cadillac Seville, 2003 Cadillac DeVille, and 2003 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
REPLACEMENT INTERVALS

Component Miles
Air Filter (1) 30,000
Accessory Drive Belt (2)
All Models 150,000
Automatic Transaxle/Transmission Fluid
CTS (3)
DeVille & Seville (4)
Engine Coolant (5) (6)
Fuel Filter
CTS 100,000
Deville & Seville (7)
Oil & Filter
All Models (8)
Spark Plugs
All Models 100,000
Timing Belt
All Models (9)
(1) Check every 15,000, replace as necessary.
(2) Check and replace as necessary.
(3) Fluid and filter do not require changing. If used under severe service conditions, replace every 50,000 miles.
(4) Under normal service conditions, replace when CHANGE TRANS FLUID message is displayed on driver's information center. If used under severe service conditions, replace every 50,000 miles.
(5) Use only DEX-COOL® coolant or equivalent silicate-free coolant.
(6) Replace at 60 months or 150,000 miles, whichever occurs first.
(7) There is no service interval for fuel filter replacement. Replace a restricted fuel filter.
(8) Replace as indicated by oil life monitor or every 12 months, whichever occurs first. If the system is ever reset accidentally, you must change oil at 3000 mi (5000 km) since last oil change.
(9) Replace every 100,000 miles or 96 months, whichever comes first.

 
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.