heater blows cold air

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May 31, 2009 | 12:48 PM

dberger1

Thread Starter

Junior Member

Joined: May 2009

Posts: 1

heater blows cold air

1999 Mercury Marquis LS with automatic
climate control. Heater fan works, cold air
only. Where do I start?

TIA, Don

May 31, 2009 | 01:13 PM

87_Crown_Vic

Super Moderator

Joined: Jan 2008

Posts: 543

From: United States

either blend door isnt working right or the heater core is blocked or clogged.

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