GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra Classic - 2WD 🢒 Service and Appearance Care 🢒 Electrical System 🢒 Engine Compartment Overview

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

When you open the hood on the 4.3L V6 engine, here is what you will see:


Object Number: 1487258 Size: C1

  1. Engine Air Cleaner/Filter. See Engine Air Cleaner/Filter .

  2. Coolant Surge Tank and Pressure Cap. See Engine Coolant and Coolant Surge Tank Pressure Cap .

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

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

  5. Automatic Transmission Fluid Dipstick (If Equipped). See "Checking the Fluid Level" under Automatic Transmission Fluid .

  6. Engine Cooling Fan. See Cooling System .

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

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

  9. Remote Negative (-) Terminal (GND). See Jump Starting .

  10. Remote Positive (+) Terminal. See Jump Starting .

  11. Brake Fluid Reservoir. See "Brake Fluid" under Brakes .

  12. Clutch Fluid Reservoir (If Equipped). See Hydraulic Clutch .

  13. Underhood Fuse Block. See Underhood Fuse Block .

  14. Battery. See Battery .

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

When you open the hood on the 5.3L V8 engine (4.8L and 6.0L V8 engines similar), here is what you will see:


Object Number: 1487260 Size: C1

  1. Engine Air Cleaner/Filter. See Engine Air Cleaner/Filter .

  2. Coolant Surge Tank and Pressure Cap. See Engine Coolant and Coolant Surge Tank Pressure Cap .

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

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

  5. Automatic Transmission Fluid Dipstick (If Equipped). See "Checking the Fluid Level" under Automatic Transmission Fluid .

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

  7. Engine Cooling Fan. See Cooling System .

  8. Remote Negative (-) Terminal (GND). See Jump Starting .

  9. Power Steering Fluid Reservoir. See Power Steering Fluid .

  10. Remote Positive (+) Terminal. See Jump Starting .

  11. Brake Fluid Reservoir. See "Brake Fluid" under Brakes .

  12. Clutch Fluid Reservoir (If Equipped). See Hydraulic Clutch .

  13. Underhood Fuse Block. See Underhood Fuse Block .

  14. Battery. See Battery .

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

When you open the hood on the 8.1L V8 engine, here is what you will see:


Object Number: 1487262 Size: C1

  1. Engine Air Cleaner/Filter. See Engine Air Cleaner/Filter .

  2. Coolant Surge Tank and Pressure Cap. See Engine Coolant and Coolant Surge Tank Pressure Cap .

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

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

  5. Automatic Transmission Fluid Dipstick (If Equipped). See "Checking the Fluid Level" under Automatic Transmission Fluid .

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

  7. Engine Cooling Fan. See Cooling System .

  8. Remote Negative (-) Terminal (GND). See Jump Starting .

  9. Remote Positive (+) Terminal. See Jump Starting .

  10. Power Steering Fluid Reservoir. See Power Steering Fluid .

  11. Brake Fluid Reservoir. See "Brake Fluid" under Brakes .

  12. Clutch Fluid Reservoir (If Equipped). See Hydraulic Clutch .

  13. Underhood Fuse Block. See Underhood Fuse Block .

  14. Battery. See Battery .

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

When you open the hood on your vehicle, you will see the following:


Object Number: 1485110 Size: C1

  1. Starter Generator Control Module (SGCM) Coolant Surge Tank. See Cooling System .

  2. Starter Generator Control Module (SGCM). See Cooling System .

  3. Engine Oil Dipstick. See "Engine Oil" in the owner manual Index.

  4. Automatic Transmission Dipstick. See Automatic Transmission Fluid .

  5. Brake Fluid Reservoir. See "Brakes" in the owner manual Index.

  6. Hybrid Underhood Fuse Block. See Fuses and Circuit Breakers .

  7. Underhood Fuse Block. See "Underhood Fuse Block" in the owner manual Index.

  8. Engine Air Cleaner/Filter. See "Engine Air Cleaner/Filter" in the owner manual Index.

  9. Air Filter Restriction Indicator (If Equipped). See "Engine Air Cleaner/Filter" in the owner manual Index.

  10. Engine Coolant Surge Tank. See "Cooling System" in the owner manual Index.

  11. Engine Oil Fill. See "Engine Oil" in the owner manual Index.

  12. Remote Negative (-) Terminal (GND). See Jump Starting .

  13. Electrohydraulic Power Steering Fluid Reservoir. See Power Steering Fluid .

  14. Remote Positive (+) Terminal. See Jump Starting .

  15. 12-Volt Battery. See Battery .

  16. Windshield Washer Fluid Reservoir. See "Windshield Washer Fluid" in the owner manual Index.

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