My 2008 F250 super duty heating system only produces high heat (from all vents) and running the air conditioner has no affect on the heat output. What may be wrong?

Asked by Jun 30, 2016 at 06:59 PM about the 2008 Ford F-250 Super Duty

Question type: Maintenance & Repair

2 Answers

20,145

first check/look for a vacuum hose leak/hiss...

20,145

im guessing its charged ..

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