1988 ford pickup f250 custom 5.8 liter

Asked by Feb 28, 2016 at 01:46 PM about the 1988 Ford F-250

Question type: Maintenance & Repair

Humidity and fog build up inside and
defroster works but takes forever to start to
defrost and don't work well fans and vent
are good live in seaside oregon

1 Answer

47,865

You could have a leak at the heater core. Does the inside of the cab have a sort of sweet smell? Also is the A/C compressor running when you try to defrost? Defrosters now days use the A/C system to dry the air and defrost the windows.

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