Best Answer

A dirty or defective idle air control valve (IAC). When you initialize the a/c, it sends a signal over to the Power Control Module(PCM)(Computer) and it energizes both the a/c clutch, and the IAC to raise the idle. If not, then the compressor is bad. The IAC valve(MOTOR)just needs 2 b cleaned (after it's off) with a Good Carberator cleaner-clean it until the cleaner runs clear & the pintel valve -inside-moves freely.

User Avatar

Wiki User

โˆ™ 2004-11-20 22:47:46
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What could cause a 1991 Lincoln Town Car to stop running when you turn on the AC?
Write your answer...
Related questions

What could cause a 1991 Toyota Corolla engine to stop running after startup at idle repeatedly?

There are a number of reasons why a 1991 Toyota Corolla engine would stop running after startup. It could the idle control, an EGR leak, or low fuel pressure.Ê

When was Lincoln Prize created?

Lincoln Prize was created in 1991.

What could cause a 1991 geo prizm to crank and stay started for about 15 sec Then sputter and die out after the fuel filter was changed and fuel pump is running?

You may have a major vacuum leak on the intake somewhere.

Will a transmission out of a 1991 dodge fit in a 1991 Lincoln Town Car?


1991 Lincoln Continental do i have a transmission or other drivetrain issue?

transmission issues, but could be the starter also if you had a rough start.

What would keep a 1991 Geo prism from staying running?

Maybe a bad alternator, or could need a tuneup.

1991 Lincoln Town car?

Ok. What about it? Made by Ford's Lincoln division.

When was Lincoln International Academy created?

Lincoln International Academy was created in 1991.

What could cause the sunroof on your 1991 Mercedes 190e to not move even though the motor can be heard running?

a broken cable you can order a new one at also check out the small plastic piece they call the motor.

When did Running Battle happen?

Running Battle happened in 1991.

Where do you find the daytime running light module on a 1991 Topaz?

don't believe they had daytime running lights in 1991 topaz

Is the 1991 Lincoln fuel injected?


What are the ratings and certificates for Keep on Running - 1991?

Keep on Running - 1991 is rated/received certificates of: Germany:6 Iceland:L

What are the ratings and certificates for Off and Running - 1991?

Off and Running - 1991 is rated/received certificates of: Iceland:12 USA:PG-13

What are the release dates for Where in the World Is Carmen Sandiego - 1991 The Lincoln Conspiracy 1-9?

Where in the World Is Carmen Sandiego - 1991 The Lincoln Conspiracy 1-9 was released on: USA: 10 October 1991

What would cause a 1991 Lincoln Town Car to all of a sudden not drive over 50 mph for 30 miles then only 20 until it starts overheating my gas pedal stuck that morning too could this be connected?


How many gallons does a 1991 Lincoln Town Car hold?

According to my Chilton's Auto Repair Manual : A 1991 Lincoln Town Car holds ( 18.0 U.S. gallons )

My 1991 acura integra's engine shuts off while driving what could the cause of this?

it could be the main assembly relay under the drivers kickpanel

What could cause a ticking sound when accelerating in a 1991 Nissan Sentra?

Most likely it's a CV joint.

What is the hp of a 1991 Lincoln continetal stock?

It's 140hp.

When did Lincoln Demyan die?

Lincoln Demyan died on October 6, 1991, in Simi Valley, California, USA.

What is Running temperature of 1991 Ford 460?


How do you replace a water pump on a Lincoln town car?

how to replace waterpump on 1991 lincoln continental 3.8 L engine

What could cause the lighter and the transmission backlight to fail simultaneously on a 1991 Chevy Corsica?

Probably a fuse. I didn't think they were on the same circuit but they could be. check that first.

What could cause the parking lights on a 1991 Buick Park Avenue to stay off?

Check bulbs Check fuse for parking/tailights Could be a bad switch