2003 Mercury Marquis Heating

Tiny
DDMEATS
  • MEMBER
  • 2003 MERCURY MARQUIS
  • V8
  • 2WD
  • AUTOMATIC
We have heat all the time. AC will not come on. Most of the time in the floorboard.
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Friday, July 18th, 2014 AT 5:29 PM

1 Reply

Tiny
HMAC300
  • EXPERT
Check for a vacuum leak first between engine and heater. It may not be shutting water off on engine as well as no vacuum motors working.
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Saturday, July 19th, 2014 AT 5:07 AM

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