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NO HEAT URGENT

Tiny
WRANGLERTJ84
  • MEMBER
  • 1995 MERCURY MARQUIS
  • V8
Have no heat in a 95 grand marquis, replaced thermostat, plenty of coolant, made sure blend door works, there is no heater valve in this yr all hoses and heater core are hot. Baffled?
Wednesday, December 8th, 2010 AT 1:53 PM

8 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,128 POSTS
If both heater core hoses are hot, then the heater core is hot too. THe only thing left is the blend door. Are you sure it is working properly?
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Wednesday, December 8th, 2010 AT 2:03 PM
Tiny
WRANGLERTJ84
  • MEMBER
  • 5 POSTS
The door is at the front of the heater core inside cab right? If so then as I play with the controls I watch the door open and close as need?
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Wednesday, December 8th, 2010 AT 2:08 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,128 POSTS
Actualy, the blend door is covered. You shouldn't be able to see it without removing cover. I believe the door you are refering to is the fresh air door / recirculate door.
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Wednesday, December 8th, 2010 AT 6:36 PM
Tiny
WRANGLERTJ84
  • MEMBER
  • 5 POSTS
Ohhh ok, so then the only way to find out if that works or not is by pulling the dash back so just replacing it then while im in there makes the most sense to me I guess
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Wednesday, December 8th, 2010 AT 7:37 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,128 POSTS
I would only replace it if it is bad.
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Thursday, December 9th, 2010 AT 1:15 AM
Tiny
WRANGLERTJ84
  • MEMBER
  • 5 POSTS
How would I actually know if it were bad though?
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Thursday, December 9th, 2010 AT 1:45 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,128 POSTS
It wouln't move when you go from cold to hot settings.
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Thursday, December 9th, 2010 AT 1:02 PM
Tiny
WRANGLERTJ84
  • MEMBER
  • 5 POSTS
Ok, Now the other issue is to just find a warm garage to do the work. Thanks for the help its greatly appreciated since I went to a local ford dealer and they wouldn't even let me talk to a service tech!
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Thursday, December 9th, 2010 AT 1:50 PM

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