Flashing vs Solid
Flashing CEL indicates misfire—stop to prevent catalytic damage.
Overheating or Oil Light
Shut down immediately—have the vehicle towed.
Shop or Tow?
When in doubt, tow to avoid compounding repairs.
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FAQ
Can I drive a short distance? Only if temperature/oil are normal and CEL is solid.
Reader tools? OBD-II readers help—but don’t ignore severe warnings.
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