GM Storm and Spectrum 1985-1993 Diagnostic Flow Charts Repair Guide
Access our free Diagnostic Flow Charts Repair Guide for GM Storm and Spectrum 1985-1993 through AutoZone Rewards. These diagrams include:
- Fig. 1: Diagnostic circuit check – carbureted Spectrum
- Fig. 2: System performance test – carbureted Spectrum
- Fig. 3: System performance test – carbureted Spectrum
- Fig. 4: Chart A-1: dwell fixed under 15 degrees – carbureted Spectrum
- Fig. 5: Chart A-1: dwell fixed under 15 degrees – carbureted Spectrum
- Fig. 6: Chart A-2: dwell fixed between 15-50 degrees – carbureted Spectrum

Access our GM Storm and Spectrum 1985-1993 Diagnostic Flow Charts 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 “Diagnostic Flow Charts Repair Guide”.