GM Service Manual Online
For 1990-2009 cars only

When you open the hood on the 6.6L DURAMAX® Diesel Engine, you will see the following:

United States Pickup models shown, Canada similar


Object Number: 1827637  Size: C1
  1. Engine Air Cleaner/Filter

  2. Remote Positive (+) Terminal

  3. Coolant Surge Tank

  4. Battery

  5. Engine Air Cleaner/Filter Restriction Indicator (If Equipped)

  6. Engine Oil Dipstick

  7. Automatic Transmission Dipstick

  8. Engine Oil Fill Cap

  9. Engine Fan

  10. Power Steering Fluid Reservoir

  11. Brake Fluid Reservoir

  12. Underhood Fuse Block

  13. Windshield Washer Fluid Reservoir

United States Van models shown, Canada similar


Object Number: 1561641  Size: C1
  1. Battery

  2. Coolant Surge Tank

  3. Automatic Transmission Dipstick

  4. Engine Fan

  5. Engine Air Cleaner/Filter

  6. Air Cleaner/Filter Restriction Indicator

  7. Power Steering Fluid Reservoir

  8. Brake Fluid Reservoir

  9. Windshield Washer Fluid Reservoir

If your vehicle has the DURAMAX Diesel engine, see the DURAMAX Diesel manual for more information.

When you lift the hood, here is what you will see:


  1. Object Number: 1861417  Size: C1

    Battery. See Battery .

  2. Radiator Pressure Cap. See Radiator Pressure Cap .

  3. Coolant Recovery Tank. See Cooling System .

  4. Automatic Transmission Fluid Dipstick. See "Checking the Fluid Level" under Automatic Transmission Fluid .

  5. Engine Oil Fill Cap. See "When to Add Engine Oil" under Engine Oil .

  6. Engine Oil Dipstick. See "Checking Engine Oil" under Engine Oil .

  7. Engine Air Cleaner/Filter. See Engine Air Cleaner/Filter .

  8. Power Steering Fluid Reservoir. See Power Steering Fluid .

  9. Brake Master Cylinder Reservoir. See "Brake Fluid" under Brakes .

  10. Windshield Washer Fluid Reservoir. See "Adding Washer Fluid" under Windshield Washer Fluid .