Ignition Timing

1991 Pontiac Sunbird Base, 4D Sedan, StandardSECTION Ignition Timing
NOTE: For timing procedures, see ADJUSTMENTS - V6 article.
IGNITION TIMING

Application Man. Trans. Auto. Trans.
3.1L (VIN T)
"F" Body 10 @ Idle 10 @ Idle
All Others (1) (1)
3.4L (VIN X) (1) (1)
3.3L (VIN N) (1) (1)
3.8L (VIN C & L) (1) (1)
(1) Not adjustable.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.