1998 Ford Expedition snsmoke out the tailpipe

Tiny
DGAMBOA
  • MEMBER
  • 1998 FORD EXPEDITION
  • 4.6L
  • 4WD
  • AUTOMATIC
  • 185,000 MILES
My truck blows white smoke. I doesnt overheat and the smoke doesnt smell like oil. What do u think it is
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Friday, July 18th, 2014 AT 12:37 PM

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Tiny
CARADIODOC
  • EXPERT
White smoke is a sign of burning antifreeze. Suspect a leaking cylinder head gasket. If you want to verify that first, add a small bottle of dark purple dye to the coolant, then check a few days later with a black light. The dye will show up as a bright yellow stain that you can follow back to the source. In this case you'll find it inside the tail pipe.
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Friday, July 18th, 2014 AT 7:21 PM

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