Typical repair cost: $0–$5,500
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Thin white vapor on cold mornings is harmless — disappears within 1-2 minutes.
Continuous sweet-smelling white smoke = coolant burning in the cylinder. Combustion-gas test confirms.
Same symptoms as head gasket but worse — confirmed by leak-down test.
Diesel white smoke is often unburnt fuel from a failing injector.
If smoke persists past warm-up, see a shop now — driving a blown head gasket warps heads and cracks blocks.
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