Air Conditioner Problem?

1999 LINCOLN TOWN CAR
209,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
DENNISWADEBLACK
  • MEMBER
  • 1 POST
a/c intermittently will not come on - no fan, neither will the heat come on - next time it works fine- works sometimes for hours, then won't work for hours. what's the problem
Aug 30, 2010 at 12:54 PM
Advertisement
Avatar
WRENCHTECH
  • CERTIFIED EXPERT
  • 20,761 POSTS
Your first step would be to wait for the next time it fails, go to the blower motor and test for power and ground arriving a the motor and that will tell us where to go from there.

These guides will help fix it

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

and

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

Please run down these guides and report back.
Aug 30, 2010 at 1:05 PM
Avatar
FANCO
  • MEMBER
  • 1 POST
When I try to use the heater it does not warm up and temperature gauge says normal. Air conditioner does not work either, it blows warm. coolant is full.refrigerant.Trying to get flow of air is working just no heat or air conditioning. What could be wrong? Thank You. Chase
Jul 13, 2020 at 1:36 PM (Merged)
Advertisement
Avatar
HMAC300
  • CERTIFIED EXPERT
  • 48,601 POSTS
try pulling fuse 6 and 19 with key on for sixty seconds then reinstall, it may reset the actuators. if that does not work then have it scanned for codes by a mechanic to see if actuators are getting power or not that may be the case. the blend door actuator may not be working or blend door could be broken as well.
Jul 13, 2020 at 1:36 PM (Merged)
Avatar
MURPHMANTN
  • MEMBER
  • 1 POST
1997 Lincoln Town Car Signature, 145,000 miles, 4.6.

Last summer I had my A/C recharged and checked, and it worked fine for 3 or 4 months, and then the A/C stopped working and it would only blow heat, which I am unable to regulate. It blows straight heat, I can adjust the fan speed, but not the actual temperature. When I press the vent, defrost, outside temp, buttons it will only blow heat.
Sometimes when my control unit is off, heat will still blow from the floor vents.

I had the AC checked and everything appeared fine, they recommended I replace the cycle switch, which I did.. I eventually replaced the HVAC unit, which also did not fix the problem.

I have been told that my "blower is stuck open" but if that were the case, why does it not blow cold air when I turn the AC on?

Is that the correct diagnosis? or what do you think it would most likely be?
Jul 13, 2020 at 1:37 PM (Merged)
Avatar
TEX
  • MEMBER
  • 4 POSTS
It's probably the blend door actuator. We're having the same problem with our 98 Towncar. The part costs $46 from the Lincoln parts dealer. You can run a system check for a code 24 or 25 that will confirm that you need to replace the blend door actuator.
1) turn car on and stabilize temp; 2) press the "off" and "floor" button at the same time; 3) let go and immediately press "Auto" and release; 4) you will see the LED display doing a segment check for about 20 seconds; all segments wil display simultaneously if no codes are found; 5) press "defrost" to exist the self test.

We had a code 24 show up on ours indicating that the blend door actuator needed replacing. Ford came out with a service bulletin #TSB 98-6-3 concerning this matter.

Hope this helps.
Jul 13, 2020 at 1:37 PM (Merged)
Avatar
RAPIDRAY
  • MEMBER
  • 1 POST
Air Conditioning problem
1997 Lincoln Town Car Two Wheel Drive Automatic

My a/c works, there was a clicking at the dash, it went away, all OK. Next day a couple clicks, now when I set to the low of 60 degrees, as if I had it set to 80 degrees it only blows HOT HOT. I suspect
its the temp control or what ever opens & closes the air flow from the A/c or Heater. Were are these icontrols located, how do I get to them and were to get replacments. The car has 104 k miles, runs good,
want to trade soon as I get $$ t0geather. I have workrd on cars in the early tears but still can get around at 80 years young. Is it doable for me to make this repair. Thanks for your help. RAPIDRAY
Jul 13, 2020 at 1:37 PM (Merged)
Avatar
BMRFIXIT
  • CERTIFIED EXPERT
  • 19,053 POSTS
Its the blend door actuator no good and need to be replaced

big job to do
have to remove the dashboard to do it
good luck
Jul 13, 2020 at 1:37 PM (Merged)
Avatar
ELIZABETH CHALAS
  • MEMBER
  • 2 POSTS
Air Conditioning problem V8 Two Wheel Drive Automatic 215000 miles

according to my mechanic /friend he said clutch is working ac fuse okay Freon level is okay. last year someone put too much ac Freon 2 x more but after 3 weeks he fixed this and since that time it just doesn't blow cool air he thinks it is electronics or a sensor any recommendation what to do ? awaiting your reply,

Elizabeth - this site rocks!
Jul 13, 2020 at 1:37 PM (Merged)
Avatar
RASMATAZ
  • CERTIFIED EXPERT
  • 75,992 POSTS
When you turn the AC on -Do you hear the clutch engage the compressor?
Jul 13, 2020 at 1:37 PM (Merged)
Avatar
ELIZABETH CHALAS
  • MEMBER
  • 2 POSTS
Yes , it is working but cold air is a warm air. My friend said that everything works except some the air is not converted to cold air. He also said that he thinks this is a wiring electrical problem and it would take a lot of time to check it.

Could this be a sensor?
Jul 13, 2020 at 1:37 PM (Merged)
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
Hello,

This sounds like one of two things is happening. First while the ac is running grasp the outgoing line at the firewall (low side) to see if it is cold. If not with a full charge the seals inside the compressor could have gone bad and the compressor will need to be replaced.

https://www.2carpros.com/articles/replace-air-conditioner-compressor

If it is cold that it is a temperature blend door issue not closing and will need to be replaced. Here is a guide for that.

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

Here is a general guide on the ac system not working which can give you an idea how to go about finding out the problem as well.

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Please run some tests and get back to us so we can continue helping you.

Cheers, Ken



Jul 13, 2020 at 1:37 PM (Merged)
Avatar
CCELLNER
  • MEMBER
  • 5 POSTS
1997 Lincoln Town Car

the heater on my lincoln towncar will not blow hot air .the vents open right but the air is cold
Jul 13, 2020 at 1:37 PM (Merged)
Avatar
BLACKOP555
  • CERTIFIED EXPERT
  • 10,386 POSTS
do you have automatic climate control or dual auto climate control.
Jul 13, 2020 at 1:37 PM (Merged)
Avatar
CCELLNER
  • MEMBER
  • 5 POSTS
automatic climate control
Jul 13, 2020 at 1:37 PM (Merged)
Avatar
BLACKOP555
  • CERTIFIED EXPERT
  • 10,386 POSTS
turn on ac and go from full cold to full hot do you notice any temp change at all? have you tried manual heat mode?

with fan off turn they blend from cold to hot do you hear a door moving at all?
Jul 13, 2020 at 1:37 PM (Merged)
Avatar
CCELLNER
  • MEMBER
  • 5 POSTS
i put on floor heat and turned fan all the way up. it still stays cool and i don't hear the blend door moving.
Jul 13, 2020 at 1:37 PM (Merged)
Avatar
DW101
  • MEMBER
  • 1 POST
blows hot air all the time
ran the diagnostic process press the off and floor button then the auto button
code 30 displayed
what doe this mean
Jul 13, 2020 at 1:37 PM (Merged)
Avatar
BLACKOP555
  • CERTIFIED EXPERT
  • 10,386 POSTS
alirght one final thing is get car hot. and carefully go under the hood after you just turn it off and feel the heater core hoses right at the firewall/bulkhead. are they both hot? both warm? one warm one hot? one cold one hot? both cold?
Jul 13, 2020 at 1:37 PM (Merged)
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
code 30 indicates the automatic temperature control sensor has shorted.
Jul 13, 2020 at 1:37 PM (Merged)
Avatar
CCELLNER
  • MEMBER
  • 5 POSTS
both hoses are hot
Jul 13, 2020 at 1:37 PM (Merged)
Avatar
BLACKOP555
  • CERTIFIED EXPERT
  • 10,386 POSTS
is the ambient air temp sensor reading the outside air properly? and it dont work when you have it in manual so the in vehicle temp sensor is not the issue. so if ambient air is good chances are the blend door actuator is binding up if you cannot hear it moving around.
Jul 13, 2020 at 1:37 PM (Merged)
Avatar
DCFRYAUFF
  • MEMBER
  • 1 POST
Air Conditioning problem
1996 Lincoln Town Car V8
----------------------------------------------------------------
Sometimes I get cold air and sometimes not. a new compressor installed and rechecked, could be either auto control module or other like temp sensor. How do I get a code from the AC, pressing floor & off together does not work, also where is temp sensor? Are Towncar & Continental modules the same, they look alike.
Jul 13, 2020 at 1:38 PM (Merged)
Avatar
MERLIN2021
  • CERTIFIED EXPERT
  • 17,250 POSTS
Run the self diagnostic test on it by turning the key to on, then press off and floor at the same time, then within 2 secs, press auto, If there is a problem a trouble code will appear on the display...To exit self test, press the BLUE, cooler button this also retains error codes, To erase code and exit, press defrost, choose one of these before you power down the system... Test with engine at 120 degrees or more, and cabine between 40-90 degrees.Post any codes recorded here and I let you know what's defective...
Jul 13, 2020 at 1:38 PM (Merged)
Avatar
MGABRUK
  • MEMBER
  • 2 POSTS
Would just like to find out if there could possibly be a low cost/quick fist to look into (i.e. a fuse problem, etc.) before I need to take this into a mechanic.

Also, if I need to bring this in, can you let me know what typically problems can cause this??

Thanks
Jul 13, 2020 at 1:38 PM (Merged)
Avatar
RASMATAZ
  • CERTIFIED EXPERT
  • 75,992 POSTS
1996 Lincoln Town Car Lost all heat, Blows cold - Initial R


Possible problem with the thermostat, heater core clogged up and heater control valve if it has one-
Jul 13, 2020 at 1:38 PM (Merged)
Avatar
MGABRUK
  • MEMBER
  • 2 POSTS
Thanks
Jul 13, 2020 at 1:38 PM (Merged)
Avatar
FOXBAY
  • MEMBER
  • 1 POST
Heater problem
1996 Lincoln Town Car V8 Two Wheel Drive Automatic

i have changed the thermostat installed fresh antifreeze and the heater core is not leaking but there is no hot or even warm air from heat.
Jul 13, 2020 at 1:38 PM (Merged)
Avatar
RASMATAZ
  • CERTIFIED EXPERT
  • 75,992 POSTS
Check the heater control valve and the following air mix/blend/mode doors, vacuum/actuators, and HVAC control module.
Jul 13, 2020 at 1:38 PM (Merged)
Avatar
EDWARDCODE
  • MEMBER
  • 7 POSTS
Air Conditioning problem V8 Two Wheel Drive Automatic 159000 miles

I have a 1995 Lincoln town car and my a/c only blow hot. The a/c panel is working but it will not blow cold at all. I check the fuses under the dash and under the hood, they all look fine. I check the relay buy switching the a/c relay with the fuel relay and the engine started up and the a/c is still the same.

So I research it a little bit and I did the EATC self test and it came up with code 125. Then I was told that I should clear the DTC from the EATC and then see if the code came back. It did not come back, I did not get code 125 again.

I do not know if I need to wait and see if it comes back on or what.

Also my software desplay was C05120C42D16.

It is very hot in South Carolina and I need to fix this problem fast.
Jul 13, 2020 at 1:39 PM (Merged)
Avatar
2CARPRO JACK
  • CERTIFIED EXPERT
  • 11,533 POSTS
125 is an intermittent code for the Vehicle Speed Sensor. IT sounds like it might be the control head itself going bad which that car had a problem with.

Here is a guide that will help you get the problem fixed.

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak


Please let us know what happens.
Jul 13, 2020 at 1:39 PM (Merged)
Avatar
EDWARDCODE
  • MEMBER
  • 7 POSTS
the clutch is not engaging at all. The Relays are working and the fuses are all good.

I did the self test again and it came up with 115 and 125
Jul 13, 2020 at 1:39 PM (Merged)
Avatar
2CARPRO JACK
  • CERTIFIED EXPERT
  • 11,533 POSTS
115 is also listed as an intermittent fault.Need to get gauges on it to see if the system pressure is enough to turn it on.
Jul 13, 2020 at 1:39 PM (Merged)
Avatar
EDWARDCODE
  • MEMBER
  • 7 POSTS
will auto Zone or Advance Auto Parts have these gages for me for free. Or is there a round about way of getting this infomation that I need
Jul 13, 2020 at 1:39 PM (Merged)
Avatar
2CARPRO JACK
  • CERTIFIED EXPERT
  • 11,533 POSTS
Not that Im aware of.When it comes to a/c you have to be sure the pressures are good, otherwise the system wont engage thec ompresssor
Jul 13, 2020 at 1:39 PM (Merged)
Avatar
EDWARDCODE
  • MEMBER
  • 7 POSTS
ok I went to and ac repair shop and they tested it for free. They said that there is pressure to engage the clutch but there is no power getting to it. He said that it could be the control head or a few other thing that I forgot. I know that the fuses are good and the relays are good. What should I do next.
Jul 13, 2020 at 1:39 PM (Merged)
Avatar
2CARPRO JACK
  • CERTIFIED EXPERT
  • 11,533 POSTS
Do you have a test light or meter? If so go to the switch on the low side line (bigger a/c line) and seeif it has power in and out
Jul 13, 2020 at 1:39 PM (Merged)
Avatar
EDWARDCODE
  • MEMBER
  • 7 POSTS
I do have a meter. Is that under the dash or on the ac unit
Jul 13, 2020 at 1:39 PM (Merged)
Avatar
2CARPRO JACK
  • CERTIFIED EXPERT
  • 11,533 POSTS
under the hood
Jul 13, 2020 at 1:39 PM (Merged)
Avatar
EDWARDCODE
  • MEMBER
  • 7 POSTS
I have figured it out. It is the control head and I have worked around it through fuses and the switch.
I do have one last question. Will the clutch engage and disengage on its own still. When I drive with the ac on it would engage and disengage every so often to keep it from freezing. Will it still do that if I wired it through the switch
Jul 13, 2020 at 1:39 PM (Merged)
Avatar
2CARPRO JACK
  • CERTIFIED EXPERT
  • 11,533 POSTS
Yes it should.the switch isnt what cycles it, the system sees the temp and goes from there. If i is cycling it may still be a tiny bit low on refrigerant.Even though it had ok static pressure, when running it may not have enough in it
Jul 13, 2020 at 1:39 PM (Merged)