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1991 Mercury Cougar Heater

Tiny
OFFONE
  • MEMBER
  • 1991 MERCURY COUGAR
  • V8
  • 2WD
  • AUTOMATIC
  • 70,000 MILES
I have a XR7 with comfort control heater/airconditioner and I get error codes E7 and sometimes E2 on the temp read out.I have had the heater evaluated by the Ford Dealer. The car needs a Heater Case (part Number F3SZ-1985Q-A), but they are no longer stocked, and it would cost $1000 to install if I can find a used one. Is there a way to override the controls or install a manual operation for the heater to work. All the controls work for the air conditioner and flow of air. But I can not get any heat to the car or windows.
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Thursday, December 4th, 2008 AT 4:59 PM

5 Replies

Tiny
JAMES W.
  • MECHANIC
  • 2,394 POSTS
How much do they want for just the heater core without installation? $1000 sounds a little stiff. Have you tried the aftermarket like Auto Zone or O'Rielly? A '91 heater core shouldn't be that hard to find. Please advise.
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Thursday, December 4th, 2008 AT 5:44 PM
Tiny
OFFONE
  • MEMBER
  • 12 POSTS
This is not a heater core but a heater case. The dash board must be removed and reinstalled. This is a 8 to 12 hour job. This price is if I have the heater case and is not included in the installation price.

Norman Crawford
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Thursday, December 4th, 2008 AT 6:11 PM
Tiny
JAMES W.
  • MECHANIC
  • 2,394 POSTS
Most of the newer cars nowadays you have to pull the dash to change anything on the heat/ac. Have you tried looking on the internet for your part. Still, $1000 labor is a little high.
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Thursday, December 4th, 2008 AT 6:44 PM
Tiny
OFFONE
  • MEMBER
  • 12 POSTS
I have two used parts dealer waiting for my answer if I want the part. I am not sure I want the part because I will not be able to replace it without special tools (and chance of braking something) and will still have to pay to have it installed.

Thank You
Norman
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Thursday, December 4th, 2008 AT 7:42 PM
Tiny
JAMES W.
  • MECHANIC
  • 2,394 POSTS
You shouldn't need more than a basic tool set to change the heater. No "special tools" persay. It's not really a hard job, it just takes a lot of time
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Sunday, December 7th, 2008 AT 3:11 PM

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