GM Full Size Vans 1987-1997 Vacuum Diagrams Repair Guide
Access our free Vacuum Diagrams Repair Guide for GM Full Size Vans 1987-1997 through AutoZone Rewards. These diagrams include:
- Fig. 1: Vacuum hose routing – 1987-88 Federal and high altitude (VIN Z) 4.3L engines with automatic transmissions (G10, 20 and 30 models)
- Fig. 2: Vacuum hose routing – 1987-88 Federal and high altitude (VIN Z) 4.3L engines with manual transmissions (G10, 20 and 30 models)
- Fig. 3: Vacuum hose routing – 1987-88 California (VIN Z) 4.3L engine (G10 and 20 models)
- Fig. 4: Vacuum hose routing – 1987-88 Federal (VIN H) 5.0L engines with automatic transmissions (G10 and 20 models)
- Fig. 5: Vacuum hose routing – 1987-88 Federal and high altitude (VIN H) 5.0L and (VIN K) 5.7L engines with automatic transmissions (G10 and 20 models)
- Fig. 6: Vacuum hose routing – 1987-88 Federal and high altitude (VIN H) 5.0L engines with manual transmissions (G10 and 20 models)

Access our GM Full Size Vans 1987-1997 Vacuum Diagrams Repair Guide by creating an account or signing into your AutoZone Rewards account. Once you sign in, follow these instructions to access our Repair Guides.
- Add your vehicle in Manage My Vehicles.
- Enter your vehicle details.
- Click the “View More” button, and then click “Vehicle Repair Guides.”
- Select the chapter “Vacuum Diagrams Repair Guide”.