Question about 1986 Lincoln Town Car

6 Answers

Heating & Air Conditioning

Was my mothers car, she took it to an incompetent mechanic for service. Car is in relatively good condition, miles 96,000.

I have been removing his bugs ever since I got the car. I fixed all but one. When using A/C, driving straight and level, or descending, cool air comes into the car. As soon a you accelerate, or or begin to climb (increase manifold vacuum), there is a distinct change of "pitch" of the A/C fan, and heated (not cooled) air enters the car. I am guessing that the air system has two "paths", one through cooling coils, and one through heating coils, with some sort of control door. Any help appreciated

Art Schubert
luamakina@peoplepc.com

Posted by on

  • Artie Schubert Aug 07, 2008

    The gas (refrigerant) in the the system is full. This is not the problem.

    I need help from someone who is knowledgeable regarding the 1986 Lincoln Town Car.

  • Artie Schubert Aug 08, 2008

    Good lead. I start with the hoses this weekend. Thanks.

×

6 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,665 Answers

Air inlet control door is faulty and hot air from heater coils leaks inside. Better take it to a service station to inspect its operation.

Posted on Aug 07, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 3,614 Answers

First check the fan blower resistor, it could be faulty.. BTW did you experienced it on both side or in the driver side only..?

Posted on Aug 07, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Lincoln Master
  • 61,292 Answers

Also check the vacuum check valve for the AC vacuum supply hose, (under the hood, it may come from a vacuum manifold on the firewall/bulkhead) they are many times the cause of this loose of vacuum when you accelerate.

Posted on Aug 07, 2008

  • yadayada
    yadayada Aug 07, 2008

    I have 20 years of Ford dealer work, did hundreds of AC jobs on cars like yours, the problem is a loss of engine vacuum, their is no other reason that causes the AC to act like this, verify the vacuum source in the engine compartment is not leaking or the vacuum line restricted, many time the line gets pinched were it goes through the firewall into the car, it is one of the issues.

×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 3,037 Answers

If the a/c experiences a loss, then it may be a leak in the vacuum hoses. Take a look at them and see what you find. They are lines that are about 1/4 wide that can be found under the hood. Let me know if you need help figuring which ones they are.

Posted on Aug 07, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,043 Answers

There are vacuum controlled actuators for the vents.
They direct cool air in, by closing off, or opening different pathways.
With what you describes, it could be one of the actuators has worn, or a vacuum line that controls them has a leak.
Being that it is 22 years old, and these hoses are normally rubber for that time period, I would look at the hoses first.
I would just begin to replace them, rather then trying you find a leak (you can buy a spool of hose cheap).
Once you have the hoses replaced, field test it. From there you can begin looking for leaking actuators.

This is one problem, that might be age related as the major cause.

Posted on Aug 07, 2008

  • Coss Aug 08, 2008

    Good luck with this.

    You might even run across some other surprises while you're changing the hoses.

    Let us know how it turns out, and what you find.

×

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 246 Answers

When you accelerate means the engine got more worke to done.

In that position i think your ac cumpasher did n't work or not cool much they want

Best thing is refill the gass to the AC

Posted on Aug 07, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

The heater in my excel blows cold air only . The dimist still works just no heat what should i look for?


There are several things that you can do about a heater blowing cold air, but if you keep running into problems then it might just be time to call in a heating repair company. If need be, here is a useful article on: HVAC installation cost, and how to get a fair price. How serious of an issue this is depends greatly on where you live. If you live in the north (Bozeman, MT, etc), then I'd recommend you have your furnace inspected annually to ensure that it is working properly. I'd also recommend that you install a backup means of heat...just in case. ASM has over 25 years of heating and air conditioning experience. If you have questions about a heater blowing cold air or any other HVAC related topic, try the ASM Air Conditioning and Heating Blog or if something your contractor is telling you seems expensive or doesn't sound quite right, consider using our Online Air Conditioning Consultation Service.

Jul 27, 2016 | Cars & Trucks

1 Answer

10 amp fuse blown, air compressor will not run.


whats the fuse for. if it operate the air conditioning system on the engine fuse box ur compressor clutch is burnt. if its the fuse inside the car it o\powers the hvac controls. put a new fuse on unplug ur compressor clutch connector and turn the engine on switch your air conditioning and heating controls on and off see if it blows the fuse again if it does then u have a problem with ur inside wiring circuit or heating ventilation air conditioning controls. good luck.

Feb 20, 2011 | 2005 Hyundai Sonata

1 Answer

How to take the steering wheel off a 1995 2.2 liter pontiac sunfire to change the heater core


Replacing the heater core in a Pontiac Sunfire is a very difficult and complex process. The heater core is kept within the car's heating/air conditioning module behind the instrument panel. So many other parts have to be drained and removed from the car to reach the heating/air conditioning unit that you may be better off leaving this to a professional mechanic--especially one licensed to work on air conditioning units.
Things You'll Need:

  • Wrench
  • Container
  • Air conditioning reclaimer
  • Hose clamp pliers
  • Screwdrivers
  • Heater core
  • R134a refrigerant
  • Recharge service hose
  1. Removing the Core
    • Make sure the car is cool, the front wheels are facing forward and the ignition switch is off. Drain the engine coolant by removing the drain plug at the radiator and letting the coolant pour into a clean container, then do the same at the engine block's drain plug. Recover the refrigerant by connecting an air conditioning reclaimer to the system high and low side fittings as its instructions state.
    • Disconnect the evaporator lines to the evaporator by removing its bolt and disconnect the heater hoses from the core by loosening the hose clamps with clamp pliers. Remove the drain tube from the evaporator case. Disconnect the negative battery cable.
    • Remove all the trim covers and panels from the instrument panel; some of these are screwed on and some require a flat bladed tool. Remove all air distribution ducts from the panel, the air bags, the steering wheel, the radio, the tilt and washer levers and all electrical connectors, then unscrew and remove the instrument panel from the car. Unbolt the cross vehicle beam, remove its wiring harness and remove the beam.
    • Remove the air outlet in the floor. Disconnect the wiring harness for the heater/air conditioner and the electrical connectors at the blower's motor and resistor.
    • Remove the heater/air conditioning module by removing its attaching bolts and the assembly screw. Remove the heater cover case by removing its heat stakes and screws and remove the heater core.
    • Install the replacement core into the heater/air conditioner module, then re-connect the heater core cover case. Install the assembly in the vehicle, aligning the mounting bracket to the front of the dash slot and mounting bolt hole. Reconnect the electrical connectors and wiring harness and install the floor air outlet.
    • Reinstall the cross vehicle beam and every component of the instrument panel. Reconnect the negative battery cable.
    • Install the drain tube back on the evaporator case. Connect the hater hoses and the evaporator lines.
    • Recharge the air conditioner. Connect a can of R134a refrigerant to the air conditioner's low side service fitting with a recharge service hose and a high pressure gauge to the high side fitting. Open the service hose valve while the car runs with the A/C at the max and let the vapor flow until the gauge reads between 225 and 250 PSI.
    • Refill the cooling system at the radiator filler neck. Use fresh coolant if the old liquid is dirty in any way



Dec 11, 2010 | 2005 Pontiac Sunfire

1 Answer

Air conditioning drive/pulley belt


That's a good question. I've always had a belt connected to the compressor on my hondas (1979, 1981) and worked on vehicles that had the belt on.

Most people like to have a/c working on their cars.

I would imagine that if the belt broke in an emergency, that it wouldn't hurt anything if run for a short distance before repairs could be performed.

Good luck on this one.

Jul 09, 2010 | 1998 Honda Civic

1 Answer

Heater core


You need review details in the Service Section-24-Heating-Air-Conditioning and Section-24a-Heating-Air-Conditioning

Hope helped with this (remember rated this help). Good luck.

Nov 12, 2009 | Jeep Cars & Trucks

1 Answer

The air conditioning only blows hot air, and you can hear the air leak every second, or so.


The Air-conditioning needs to be re-gassed. Take the car to an Auto Mechanic to get the Air-Conditioning re-gassed. They might also need to check it for leaks to make sure the gas stays in.

Jun 29, 2009 | 1999 Dodge Caravan

1 Answer

Intermittent turn signals in 2004 Jeep Grand Cherokee


definately as all the dash has to be removed to access the work you had carried out previously

Jun 03, 2009 | 2004 Jeep Grand Cherokee

1 Answer

"Service Engine Soon" warning light


The "service engine" light come on in about 80% of older cars quite frequently. Usually, it means nothing being related to some emissions component or similar. You can shut it of with a rented (for free,) tool at Autozone. The tool is a code-reader, and can also tell you what the specific cause is, as well as instruct the on-board computer to simply turn off the annoying light. Odds are it'll come back if you don't fix whatever trivial B.S. it is complaining about. Best advice: Unless it's something major, just live with it like everyone else. - Good Luck, John

Jun 03, 2009 | 1993 Saturn SL1

3 Answers

The air conditioning,the blower fan everything stopped working, on 2002 Nissan Sentra. Does anyone have any suggestions?


One suggestion. Have you checked the fuses ?

I would check the AC or blower fuse to start with. If you have the drivers manual it will show you where the fuse box is. Typically there are at least two boxes to check. One in the Engine compartment and one in the passenger cabin.

Look inside the lid of the fuse box to see which fuse may apply to the AC circuits or the blower and check to see if they are blow. the metal link between the two posts that plug in. If the link is missing you need to replace the fuse with one of the same rating. Make sure you know where you took the fuse out from and put it back in the same slot if its good. Check all the main fuses if possible to see if any have blown and replace if they have.

Aug 12, 2008 | 2002 Nissan Sentra

Not finding what you are looking for?
Cars & Trucks Logo

144 people viewed this question

Ask a Question

Usually answered in minutes!

Top Lincoln Experts

yadayada
yadayada

Level 3 Expert

61292 Answers

Fordexpert

Level 3 Expert

5331 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Are you a Lincoln Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...