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A/C problem

Tiny
SAM CARLESE
  • MEMBER
  • 2000 LINCOLN TOWN CAR
  • 4.6L
  • V8
  • 2WD
  • AUTOMATIC
  • 190,000 MILES
When I am driving and I have my A/C on at times the air will blow warm and then it will blow cool again had Freon checked and it is okay.
Thursday, May 18th, 2017 AT 3:08 PM

19 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,289 POSTS
Hello,

It sound like you have a blend door actuator that is going out, here is a guide that will help you get the problem fixed.

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

and

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

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Monday, May 22nd, 2017 AT 10:34 AM
Tiny
DARRENCO1
  • MEMBER
  • 10 POSTS
  • 2000 LINCOLN TOWN CAR
  • V8
  • 2WD
  • AUTOMATIC
  • 95,000 MILES
Air Conditioning problem
2000 Lincoln Town Car V8 Two Wheel Drive Automatic 95000 miles

checked air con compressor low and high pressure switch, relays, fuses and self diagnostic on dash.
Gas full and checked by air con specalist.
No codes
you can by pass the compressor to make it work so I now thats ok
any help would be appricated.
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Monday, May 22nd, 2017 AT 10:35 AM (Merged)
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Is it getting signal through the cycling switch (low side)? If pressures are good, then it is electrical, need to find out where the signal stops. Do you have a trigger signal at the relay from the PCM? Does the relay have power? Is the ground good at the compressor?
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Monday, May 22nd, 2017 AT 10:35 AM (Merged)
Tiny
DARRENCO1
  • MEMBER
  • 10 POSTS
Thanks for quick reply I have just checked power to pcm fine and relay and switches, earth good at compressor
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Monday, May 22nd, 2017 AT 10:35 AM (Merged)
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Is it passing the power through the cycling switch (low side)when a/c is on?
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Monday, May 22nd, 2017 AT 10:35 AM (Merged)
Tiny
DARRENCO1
  • MEMBER
  • 10 POSTS
Im getting positives at this relay removed


https://www.2carpros.com/forum/automotive_pictures/75566_R0013890_1.jpg


https://www.2carpros.com/forum/automotive_pictures/75566_R0013892_1.jpg


13 v through b/w wire on low presure switch
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Monday, May 22nd, 2017 AT 10:35 AM (Merged)
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Is this a Cartier, Signature or Executive series?
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Monday, May 22nd, 2017 AT 10:35 AM (Merged)
Tiny
TACKLEMAN
  • MEMBER
  • 1 POST
  • 2000 LINCOLN TOWN CAR
  • V8
  • FWD
  • AUTOMATIC
  • 114,000 MILES
Heater problem
2000 Lincoln Town Car V8 Front Wheel Drive Automatic 114000 miles

The EATC does not work. The heater/AC panel lighte up and all the controls work. All the fuses marked EATC are good. What could be the problem? Help!
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Monday, May 22nd, 2017 AT 10:35 AM (Merged)
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
The relay shoul dhave power at 1 more spade with engine running, then th elast one3 should ground when a/c turned on (signal from PCM) the signal wire is orange/ lt blue
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Monday, May 22nd, 2017 AT 10:35 AM (Merged)
Tiny
CUSTOMERSERVICE
  • MEMBER
  • 1 POST
It seems likely that either your blower motor is bad, or your blower motor controller is bad.

I personally own a 2000 Lincoln Town car. Mine also has EATC (Electronic Automotic Temperature Control). With this setup an electronic blower controller is used in place of the blower resistor. The blower controller is located inder the hood, nearly centered with the car, but slighty toward the passenger side. It is mounted in the HVAC ductwork just behind the engine. Removing the cowling made access a lot easier for me, when I was replacing mine.

Good luck,
Tony
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Monday, May 22nd, 2017 AT 10:35 AM (Merged)
Tiny
TORHOF
  • MEMBER
  • 1 POST
  • 2000 LINCOLN TOWN CAR
  • V8
  • 2WD
  • AUTOMATIC
  • 125,000 MILES
Air Conditioning problem
2000 Lincoln Town Car V8 Two Wheel Drive Automatic 125000 miles

AC works fine (cools down to 45F), but stops working and blows hot air into the car as soon as the outside temperature reaches 84F or more.
The stop comes earlier if it runs with max AC. If it is set on automatic AC, I think it runs longer.
Even after long drives and hot temperatures (with hot air blowing into the car), the AC comes back by itself if the outside temperature falls below 84F.
I replaced the coolant already twice (by a professional, he also checked for leaking, but said everything looks fine). A Ford dealer checked it for a day, but found nothing.
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Monday, May 22nd, 2017 AT 10:35 AM (Merged)
Tiny
DARRENCO1
  • MEMBER
  • 10 POSTS
Power on two terminals only with air con on or off cartier edition lincoln
thank you
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Monday, May 22nd, 2017 AT 10:35 AM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Check for codes

Ensure coolant temperature is at least 120 °F (49 °C) before entering self-diagnostics.
Ensure in-car temperature is between 40-90 °F (4-32 °C).
Simultaneously depress OFF and FLOOR buttons, then press AUTO button within 2 seconds.
Display will show a dashed line in the center of the display window for up to 30 seconds while test is running. Record all DTCs as displayed.

Check and suspect sunload sensor
check coolant fan operation
check if system was over charged
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Monday, May 22nd, 2017 AT 10:35 AM (Merged)
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Did that solve your problem?
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Monday, May 22nd, 2017 AT 10:35 AM (Merged)
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Did you test for ground at the orange/lt blue when a/c is on? (One of the other spades at the relay)
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Monday, May 22nd, 2017 AT 10:35 AM (Merged)
Tiny
DARRENCO1
  • MEMBER
  • 10 POSTS
Hi im getting red/black +
biege /cream earth
orange/black+
orange/dark blue earth constant
nothing seems to change air con on or off when reading from under pcm engine on
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Monday, May 22nd, 2017 AT 10:35 AM (Merged)
Tiny
  • MEMBER
  • 0 POST
  • 2000 LINCOLN TOWN CAR
  • 246,000 MILES
Air conditoning is not cooling
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Monday, May 22nd, 2017 AT 10:35 AM (Merged)
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Im going to suggest that you go here

https://www.2carpros.com/articles/mitchell1eautorepair-car-repair-manuals

This is to Mitchell, the online program used in shops.Go to "electrical", "wiring diagrams", "a/c" there you will see the entire circuit so you can match up the colors to see what is going where
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Monday, May 22nd, 2017 AT 10:35 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Have the high and low pressure checked-could be low/no freon in it-start here
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Monday, May 22nd, 2017 AT 10:35 AM (Merged)

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