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GM Buick, Oldsmobile, Pontiac, Full-Size 1975-1990 Firing Orders Repair Guide

Access our free Firing Orders Repair Guide for GM Buick, Oldsmobile, Pontiac, Full-Size 1975-1990 through AutoZone Rewards. These diagrams include:

  • Fig. 1: Buick-built 231, 252 V6 Engine firing order: 1-6-5-4-3-2 Distributor rotation: Clockwise
  • Fig. 2: Olds-built 260, 307, 350, 400, 403, 455 Pontiac-built 265, 301, 350, 400, 455 V8 Engine Firing Order: 1-8-4-3-6-5-7-2 Distributor rotation: Counter-clockwise
  • Fig. 3: Buick-built 350 V8 Firing order: 1-8-4-3-6-5-7-2 Distributor rotation: Clockwise
  • Fig. 4: Chevrolet-built 267, 305, 350 Firing Order: 1-8-4-3-6-5-7-2 Distributor rotation: clockwise
  • Fig. 5: Chevrolet-built 262 Firing order: 1-6-5-4-3-2 Distributor rotation: clockwise
GM Buick, Oldsmobile, Pontiac, Full-Size 1975-1990 Firing Orders Repair Guide

Access our GM Buick, Oldsmobile, Pontiac, Full-Size 1975-1990 Firing Orders 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 ” Firing Orders Repair Guide”.

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