Heat not working

Tiny
BIGMAN187
  • MEMBER
  • 2001 LINCOLN TOWN CAR
  • 125,000 MILES
Heater climate control not working the lights on the climate control work.
Monday, January 9th, 2017 AT 6:41 PM

23 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,513 POSTS
Hey BIGMAN187,

We have an excellent guide to fix your heater please check it out and get back to us.

https://www.2carpros.com/articles/car-heater-not-working

Please let us know happens so it will help others.

Best, Ken

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Sunday, January 15th, 2017 AT 12:01 AM
Tiny
USFCIRE
  • MEMBER
  • 30 POSTS
  • 2001 LINCOLN TOWN CAR
Heater problem
2001 Lincoln Town Car V8 Automatic

I have a friend at church who has a 2001 Lincoln towncar which has been in the shop going on three weeks trying to solve a single problem, the heater won't blow hot air or even warm air. The A/C works just great and the fan blows, but for one reason or another the heather does not. The hoses going to the heater are hot, but something is stopping the heat from coming into the car. Any ideas that I can give him?
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Thursday, December 17th, 2020 AT 8:05 AM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Hello

This is normally caused by a failed or clogged heater core. If it is clogged than you may even notice some engine overheating. If the heater core is not clogged but has just failed than only issue would be no heat.
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Thursday, December 17th, 2020 AT 8:05 AM (Merged)
Tiny
ROSE REEVES
  • MEMBER
  • 1 POST
  • 1999 LINCOLN TOWN CAR
Heater problem
1999 Lincoln Town Car V8 Automatic 68,000 miles

Bought the car two days ago and the heater worked - Now it will not work
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Thursday, December 17th, 2020 AT 8:06 AM (Merged)
Tiny
RICK 08
  • MEMBER
  • 54 POSTS
Since it has been some time I expect you have resolved the problem, If not.
Is the engin temp gauge showing a normal temp after 10-20 min of driving?
Is the blower giving you any air?
Is the antifreze level Ok?
Need more info.
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Thursday, December 17th, 2020 AT 8:06 AM (Merged)
Tiny
THOMYLC
  • MEMBER
  • 1 POST
  • 1998 LINCOLN TOWN CAR
  • V8
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
How do I repair heater? No heat is coming out only cold air, their seems to be a mist that covers windows and car overheats if heater is turned on.

Can I repair without having to replace heater core?
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Thursday, December 17th, 2020 AT 8:06 AM (Merged)
Tiny
FLEXY5
  • MECHANIC
  • 512 POSTS
You need a heater core. Bottom line, the dash needs to come out. If you'd like I can walk you through the general process, but it will take you about 8 hours to do. Let me know.
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Thursday, December 17th, 2020 AT 8:06 AM (Merged)
Tiny
DREAMMONEY
  • MEMBER
  • 1 POST
  • 1998 LINCOLN TOWN CAR
  • AUTOMATIC
  • 205,457 MILES
I cut heat on and only cold air comes out how can I make it work again. Thank you
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Thursday, December 17th, 2020 AT 8:06 AM (Merged)
Tiny
CARADIODOC
  • MECHANIC
  • 33,871 POSTS
Depends on the cause. First feel the upper radiator hose once the engine has warmed up. It should be too hot to hold onto for very long. If it is not, suspect the thermostat. If it is, feel the heater hoses. If they're cool, suspect a plugged heater core or, if your car uses one, the water control valve might not be opening. If those hoses are hot, suspect an actuator problem with the heater box. Ford does have more than their share of actuator problems.
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Thursday, December 17th, 2020 AT 8:06 AM (Merged)
Tiny
MILKANDCOOKIES
  • MEMBER
  • 3 POSTS
  • 1997 LINCOLN TOWN CAR
Heater problem Two Wheel Drive Automatic 175000 miles

Can you tell me where the heater control valve is located on a 97 Lincoln Town Car 4.6 L? Is it under the windshield wiper motor my heater is not working and I think that is why.

The heater is blowing cold air. I have the manual which in troubleshooting section says it would be the thermostat, the coolant level, or the heater control valve. I have eliminated the first two. I bought the part at parts store but don't see the same part under the hood. Any suggestions about where it would be? My heater is not working

I love this site
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Thursday, December 17th, 2020 AT 8:06 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Your car does not have a heater control valve the problem is most likely the temperature blend door actuator has gone out and needs replace. Here is a guide that will show you what you are in for when doing the repair.

https://www.2carpros.com/articles/replace-blend-door-motor

Here is another guide that can help

https://www.2carpros.com/articles/car-heater-not-working

Here is the location of the temperature blend door actuator for your car (below)

Also check for vacuum leaks under the hood this guide will show you what to look for

https://www.2carpros.com/articles/air-vents-stay-in-the-defrost-position

Please let us know what happens.

Cheers
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Thursday, December 17th, 2020 AT 8:06 AM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Try warming the Vehicle, then carefully feel the heater hoses, are they both hot? If one is cooler than the other, You need to flush the core, or a replacement job on the heater core.
It's possible that the temperature blend door is stuck. The shaft it swings on is metal, and over time they tend to rust and binde up, operated the temp knob while you look for or feel for the actuator that moves that door, some actuators ar vacuum operated, some electrical. Either these motors, called servo motors can go bad or the above mentioned issue! If the shaft is frozen, try a small drill bit at the base of the shaft, drill thru the plastic and spray some white lithium grease in there, if you can move it by hand, so much the better! Work it back and forth till it moves freely!
Try this press off and floor at the same time, then within 2 seconds press auto, if it comes up with a fault code post it here.
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Thursday, December 17th, 2020 AT 8:06 AM (Merged)
Tiny
MILKANDCOOKIES
  • MEMBER
  • 3 POSTS
Merlin2021 I did as you prescribed, pushing the buttons that you mentioned. There was a pause with a little light going around. Then I heard a clicking noise in the dash. Then the numbers 024 and 025 began flashing. Wait it gets better. Then I turned off the car and turned it back on and the heater started working. AWESOME! Now I don't know if the problem is fixed, but hopefully this information will give you a better idea of what my problem is/was. Thanks man!
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Thursday, December 17th, 2020 AT 8:06 AM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Hers the in depth testing in case you need it...


https://www.2carpros.com/forum/automotive_pictures/62217_Codes_2.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_Tests_2.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_Tests2_1.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_Tests3_1.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_Tests4_1.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_Tests5_1.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_Connectors_1.jpg

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Thursday, December 17th, 2020 AT 8:06 AM (Merged)
Tiny
ROYS101
  • MEMBER
  • 6 POSTS
Try this press off and floor at the same time, then within 2 seconds press auto, if it comes up with a fault code post it here.[/Quote]

I did just what MilkandCookies did, and it worked for me too! Merlin2021 you are awesome. My heater woks again!
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Thursday, December 17th, 2020 AT 8:06 AM (Merged)
Tiny
BILL BEEMER
  • MEMBER
  • 2 POSTS
My car may be different, pressed the off floor at the same time, then auto; codes 24 then 16 came up. Whats up?
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Thursday, December 17th, 2020 AT 8:06 AM (Merged)
Tiny
BILL BEEMER
  • MEMBER
  • 2 POSTS
Sorry,
It is a 99 Town car 175000 mi. It has new intake with aluminum coolant passage, and new thermostat. Heater doesnt blow hot. I depressed the off and floor on the heater control and it flashed the #24 then #16. Any help appreciated, anymore info you need to help me I will try to get. Thanks.
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Thursday, December 17th, 2020 AT 8:06 AM (Merged)
Tiny
MANNYSUR
  • MEMBER
  • 1 POST
Dear sir. Thanks for your great post. And once that I did the self diagnostic it came codes 24, 25 and 115 wich are the temp. Blend door activator and the engine coolant temp. Sensor. Could you please have the way to indicate where this items are located on the vehicle?If possible with a diagram?Thanks in advance for your time. Manny.
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Thursday, December 17th, 2020 AT 8:06 AM (Merged)
Tiny
JOE WATTS
  • MEMBER
  • 1 POST
If I cant afford to fix this thing and dont have the time or patience to pull the dash, is there anything I can do? Mine is stuck on AC and I got the 2425 error code. I dont care if it never blows cold again because I'm likely going to ghost ride it into a ravine ASAP
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Thursday, December 17th, 2020 AT 8:06 AM (Merged)
Tiny
GATOR007
  • MEMBER
  • 2 POSTS
  • 1997 LINCOLN TOWN CAR
  • V8
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
I got a 1997 Lincoln town car, applyed the your test, for when your heater blown cold air. The numbers display are: 24, 125, 115 could you assit me to where thos part are located an where to start first.
Thanks in advance.
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Thursday, December 17th, 2020 AT 8:08 AM (Merged)

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