Engine Coolant Temperature Light

1987 Pontiac Bonneville SESECTION Engine Coolant Temperature Light

Light is designed to come on briefly during engine starting as a bulb check. If it comes on or remains on while driving, it indicates a potential engine overheating condition, and all vehicle operations should be stopped as soon as possible. On vehicles equipped with a Driver Reminder Package, a fast-pulse chime will also sound when the light comes on. Continued operation of engine in this condition, even for a short time, may result in severe vehicle damage.

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.