Heater blows air into cabin and winshield defroster but is not warm. A/C works OK

Tiny
LEECO
  • MEMBER
  • 1997 LINCOLN TOWN CAR
  • 4.6L
  • V8
  • RWD
  • AUTOMATIC
  • 138,433 MILES
Have checked flapper door, vacuum hoses, water hoses no leaks, radiator coolant full, water hoses get warm, cannot locate Heater Control Valve it is not readily seen under the hood. Vacuum gage checks OK on lines. On switching from A/C to Heat no sound can be hear. Please tell this OLD WWII China-Burma- sQUADRON commhowander, and BSCE what to do next-How do I DONATE-IF BY CREDDIT CARD WILL SEND NUMBERS OR PAY AN ON LINE BILL FROM BANK ACCOUNT
Sunday, January 11th, 2015 AT 11:08 AM

4 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check fuses in pic and then have a pro scan it to see what is wrong due to it being auto temp control can be anything until scanned.
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Sunday, January 11th, 2015 AT 11:25 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,251 POSTS
You are going to need to see about that control valve, if the vacuum line or valve is faulty it will not allow the heater to work. Please check it and get back to us.

, Ken
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Sunday, January 11th, 2015 AT 6:12 PM
Tiny
LEECO
  • MEMBER
  • 2 POSTS
I wish I could send larger donation-but the company holding my retirement contract from my engineering company went bankrupt, however I am trading stock options on line and when I HIT a good trade I will share with you. Leon Cobaugh Lt-COL USAF[Reserve] retired. Meanwhile where do I find the heater control valve on a 1997 Lincoln Town CAR
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Sunday, January 11th, 2015 AT 6:29 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,251 POSTS
The heater control valve is at the inlet and outlet of the hear core, (one of the heater hoses, ) some cars don't have this valve, if you don't not find one you will need to retrieve the codes from the climate control, chances are its the heater blend door actuator that was failed which are prone to do so.

Please let us know what you find.
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Sunday, January 11th, 2015 AT 6:46 PM

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