GMC Workshop Service and Repair Manuals

C 2500 3/4 Ton Pickup 2WD L6-250 4.1L VIN D 2-bbl (1984)

• Engine, Cooling and Exhaust
• Engine
• Tune-up and Engine Performance Checks
• Ignition Timing
• Number One Cylinder
• Component Information
• Locations
• Number 1 Cylinder Location