Question about 1994 Lincoln Continental

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Front air shocks

The airshocks usually activate when i start the car but not today. could this be a fuse or electrical problem? it was only fun being a lowrider for a few blocks, please help

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Posted on Oct 25, 2008

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Air suspension 2000 lincoln town car- warning signal


it means the vaccuum pump for the airshocks is not working or these shocks have bottomed out setting off the warning..check the pump, hoses and airbags for leaks.. they should be hissing

Dec 08, 2013 | 2000 Lincoln Town Car

1 Answer

Rear airshocks not airing up


Must be a problem with the air pump. Check to see if it's running. Check fuses, wires and check for power at the pump.

Feb 06, 2012 | Cars & Trucks

1 Answer

Ttrying to fine out where to put the air for the airshock


Vehicles: Cadillacs with ALC-controlled rear shock absorbers

Each rear shock absorber has an ALC (air) port. One may disconnect the ALC air line and try to add air, but this is unlikely to work, since there is no spring-loaded valve to close the port off immediately (like a tire).

A better method for inflating the rear shocks to see if they hold air is to supply 12V DC (from the battery) directly to the ALC system (air) compressor.

Debugging your Cadillac's ALC system can be a challenge. Here are a few basics.

Here's a depiction of the ALC port on the rear shock - found at the end of the ALC air tube.


12_2_2011_12_54_42_am.jpg

Fig. 1 The ALC connection on the rear shock absorber

Here's a close-up of the Cadillac ALC port on the rear shock


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Fig.2 Cadillac ALC air line fitting

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Automatic Level Control System - General Description
Vehicles Without Road Sensing Suspension

The Automatic Level Control (ALC) system automatically adjusts the rear height of the vehicle in response to changes in vehicle loading.

The ALC system consists of a height sensor, an air compressor assembly, an ALC compressor relay, an intake hose and filter, an air tube, and two rear shock absorbers . The air compressor assembly consists of an air compressor and an air dryer mounted on a bracket. The air compressor head is a replaceable part of the air compressor. The (air) exhaust solenoid is a non-replaceable part of the air compressor head.

The compressor is activated when the ignition is on, and weight is added to the vehicle. The exhaust solenoid is connected directly to the battery (+), enabling the system to exhaust with the ignition on or off when excess weight is removed.

Vehicles With Road Sensing Suspension
The Automatic Level Control (ALC) system automatically adjusts the rear height of the vehicle in response to changes in vehicle loading.

The ALC system consists of the CVRSS control module, two CVRSS position sensors, an air compressor assembly, an ALC compressor relay, an intake hose and filter, an air tube, and two rear shock absorbers. The air compressor assembly consists of an air compressor and an air dryer mounted on a bracket. The air compressor head is a replaceable part of the air compressor. The exhaust solenoid is a non-replaceable part of the air compressor head.

The vehicles rear vertical height is measured by the two CVRSS position sensors. These two position sensors convert this rear height measurement into an analog voltage (0 to 5 volts DC) which is read by the CVRSS control module. The control module then determines what action (exhaust, compress, or no action) shall take place. To compress, the CVRSS control module switches the low-side of the ELC compressor relay to ground.

The air compressor is enabled (switched to battery only when the ignition is on. The air compressor is activated when a sufficient amount of weight has been added to the vehicle.

The exhaust solenoid is enabled at all times. The exhaust solenoid is activated when weight is removed from the vehicle.

Automatic Level Control System Operation w/o F45

Raising the Vehicle
When a load is added to the vehicle, the vehicle body moves down causing the sensor actuating arm to rotate upward. The upward arm movement activates an internal timing circuit and, after an initial fixed delay of 17 to 27 seconds, the sensor provides a ground to complete the compressor relay circuit. The 12V (+) circuit to the compressor is then complete and the compressor runs, sending pressurized air to the shock absorbers through the air tubes.

As the shock absorbers inflate, the vehicle body moves upward rotating the actuating arm towards its original position. Once the body reaches its original height, +/- 25 mm (+/- 1 in), the sensor opens the compressor relay circuit, and the compressor is turned off.

Air Compressor Head Relief Sequence
In order to reduce current draw during air compressor starting, the height sensor performs an air compressor head relief sequence before air compressor operation. This sequence reduces the air pressure in the air compressor cylinder during start-up. The air compressor head relief sequence occurs as follows:

Exhaust solenoid is energized.
Air compressor is activated 1.3 seconds after the exhaust solenoid is energized.
Exhaust solenoid is de-energized 0.5 seconds after the air compressor is activated.
Lowering the Vehicle
When a load is removed from the rear of the vehicle, the body rises, causing the sensor actuating arm to rotate downward. This again activates the internal timing circuit. After the initial fixed delay, the sensor provides a ground to complete the exhaust solenoid circuit, energizing the solenoid. Now, air starts exhausting out of the shock absorbers, back through the air dryer and exhaust solenoid valve, and into the atmosphere.

As the vehicle body lowers, the actuating arm rotates to its original position. When the vehicle body reaches its original height, +/- 25 mm (+/- 1 in), the sensor opens the exhaust solenoid circuit, which closes the exhaust solenoid and prevents air from escaping.

Air Replenishment Cycle
The sensor actuating arm position is checked when the ignition is turned on. If the sensor indicates that no height adjustment is needed, an internal timer circuit is activated. After about 35 to 55 seconds, the compressor is turned on for 3 to 5 seconds. This ensures that the shock absorbers are filled with the proper residual pressure. If weight is added to or removed from the vehicle during the time delay, the air replenishment cycle is overridden, and the vehicle rises or lowers after the normal delay.

Automatic Level Control System Operation w/ F45

Raising the Vehicle
When a load is added to the vehicle, the vehicle body moves down causing the sensor actuating arm to rotate upward. The upward arm movement activates an internal timing circuit and, after an initial fixed delay, the CVRSS control module provides a ground to complete the compressor relay circuit. The 12V (+) circuit to the compressor is then complete and the compressor runs, sending pressurized air to the shock absorbers through the air tubes.

As the shock absorbers inflate, the vehicle body moves upward rotating the actuating arm towards its original position. Once the body reaches its original height, +/- 25 mm (+/- 1 in), the compressor relay circuit is opened and the compressor is turned off.

Air Compressor Head Relief Sequence
In order to reduce current draw during air compressor starting, the CVRSS control module performs an air compressor head relief sequence before air compressor operation. This sequence reduces the air pressure in the air compressor cylinder during start-up. The air compressor head relief sequence occurs as follows:

Exhaust solenoid is energized.
Air compressor is activated 1.3 seconds after the exhaust solenoid is energized.
Exhaust solenoid is de-energized 0.5 seconds after the air compressor is activated.

Lowering the Vehicle
When a load is removed from the rear of the vehicle, the body rises, causing the sensor actuating arm to rotate downward. This again activates the internal timing circuit. After the initial fixed delay, the CVRSS control module provides a ground to complete the exhaust solenoid circuit, energizing the solenoid. Now, air starts exhausting out of the shock absorbers, back through the air dryer and exhaust solenoid valve, and into the atmosphere.

As the vehicle body lowers, the actuating arm rotates to its original position. When the vehicle body reaches its original height, +/- 25 mm (+/- 1 in), the exhaust solenoid circuit is opened, which closes the exhaust solenoid and prevents air from escaping.

Air Replenishment Cycle
An air replenishment cycle (ARC) is commanded after each ignition-ON cycle. The purpose of the ARC is to ensure that the ALC system is operating at or above minimum air pressure (residual air pressure). The ARC occurs as follows:

The EXHAUST SOLENOID IS ENERGIZED 20 seconds after the ignition has been turned on.
The AIR COMPRESSOR IS ACTIVATED 1.3 seconds after the exhaust solenoid is energized.
The EXHAUST SOLENOID IS DE-ENERGIZED 0.5 seconds after the air compressor is activated.
The AIR COMPRESSOR IS DEACTIVATED 3.2 seconds after the exhaust solenoid is de-energized.

Dec 01, 2011 | 1998 Cadillac DeVille

1 Answer

Bottoming out rides rough. Can Air shocks be bled off to help smooth the ride?


bottoming out usually means rear air shocks have gone out or if in the front bad struts ,is the air pump coming on should here it when you start car and put weight in the rear

Feb 09, 2011 | 1997 Buick LeSabre

1 Answer

How hard is it to replace air shocks on a '96 riviera


HOW MUCH IS SUPPOSED TO BE IN UR AIRSHOCKS...IS THERE A SUCH THING AS TO MUCH AIR..IN AIRSHOCKS

Mar 07, 2010 | 1996 Buick Riviera

1 Answer

Howdo i no if my compreesor on my airshock work for


You can disconnect the level control switch,which should be, possibly on the right rear lower control arm. Then turn the key on,and move the switch arm up or down. The compressor should come on and raises the car. You can also adjust it, but only a little. You should hear the compressor,every time you start the car. It can be running and waiting for the need to inflate the rear air struts.

Feb 17, 2010 | 1991 Buick LeSabre

2 Answers

Air shocks, I think my pathfinder needs airshocks,


u can use regular shocks but u may get an air ride waring light staying on in the dash.

May 28, 2009 | 1993 Nissan Pathfinder

1 Answer

Trying to replace airshocks on 1999 lincoln towncar


Air shocks or air bag suspension? Shocks can be replaced with a "coil-over" shock like those made by monroe. To replace spring/air bag system, you would need to experiment with spring combination's to find what works...likely more expensive than changing what's wrong with original stuff.

May 28, 2009 | 2000 Lincoln Town Car

2 Answers

I would like to bypass the air compressor and manual inflate the air ride so that it stays up.how do i do that Dennis


you would have to unplug compressor and remove airline and tie in a valve like one off of airshocks.
it is usually the air springs that rot and start leaking. so you will probably still leak down. you can replace with coil springs and do away with air ride your continental has airride front and rear?

http://cgi.ebay.com/ebaymotors/Lincoln-Continental-Coil-Spring-Conversion-Shock-Shocks_W0QQcmdZViewItemQQcategoryZ33590QQihZ020QQitemZ300262870255QQrdZ1QQsspagenameZWDVW

this would do away with system all together

Oct 03, 2008 | 1990 Lincoln Continental

1 Answer

Getting electrical shock feeling when camper is plugged in i touch metal and get the feeling of a 9 volt battery on your tongue


check the earth on your leads and also all the connections in side the van. start on the hook up connection and work out from there. make sure it is disconnected before taking it apart. you can use a ohm meter to check the cables arnet broken. there should be almost no resistance in the earth. it is impoortant to fix this aswell as the live fault! the eart(ground) connection should result in blown fuse befor you get a shock like you are.when you resolve this you will find fueses start blowing. if its the one in the house that feeds the hook up you will have to go over all the electrics to find the bad connection. if its in the camper you know which circuit it is to look at.

you can ground the camper cruedly by ptting a copper steak in the mud and connecting it to the battery negative.

have fun and play safe as electricity is not fun if you get it wrong. make sure you turn it off before you fiddle!

Jul 22, 2008 | 1986 Volkswagen Wagon Camper

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