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2001 Mercury Marquis Heater Problems

Tiny
SEVANNA1991
  • MEMBER
  • 2001 MERCURY MARQUIS
Heater problem
2001 Mercury Marquis V8 Wheel Drive Type unknown Automatic 211500 miles

The fan blows great, but it's not heating up. It will get "warm", but barely warm enough to defrost the windshield.
Thursday, January 3rd, 2008 AT 12:52 PM

1 Reply

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Sounds to me that you should change the temperature control valve and flush out the coolaant system and heater core, then bleed it of air.
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Thursday, January 3rd, 2008 AT 9:20 PM

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