Question about 2004 Ford Crown Victoria

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My air compressor works run for about 20 sec then cut off rear still sagging

The rear of my vehicle is sagging,i have the ride,when i crank the vehicle the compressor runs for about 20 seconds.

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Sounds a lot like an Air/Vacuum leak to the rear Shockies..... See a Suspension Specialist....

Posted on May 08, 2014

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emissionwiz
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SOURCE: 85 ford diesel 6.9

Most common cause is a air leak into the fuel system at the filter bleed valve.

Posted on Sep 20, 2008

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SOURCE: air ride suspension 1997 ford expedition

If the compressor is working and actually pumping out air, might need to check your lines dont have a leak by disconnecting them from the bags. If pressured air is making it to the end of the line, then bags may need to be inspected and one or both replaced. However it is more likely that the lines are leaking or the compressor pump needs a service. Just a new set of rings in the unit. Good luck, hope it helps.

Posted on Dec 31, 2008

localwonder
  • 6784 Answers

SOURCE: air suspension compressor doesn't run

Hi, this is a common issue with most air ride trucks of this nature. the air compressor unit has failed and it will need to be rebuilt or replaced. its cheaper to just replace the compressor rather than to get it rebuilt. The most likely issue will be that the seal has been blown and it is unable to compress the air flow through the air lines.

Pleas rate and god bless:)

Posted on Apr 15, 2009

  • 2 Answers

SOURCE: Air Ride Suspension Issues for a 1999 For Expedition 5.4L

I just experience problem with a leak in one of the bags in the back n because i didn’t have the money then to take care of the problem my air compressor burned. I just recently changed the bag and I found it at this website for $160 and the compressor is $210 + shipping. They r a manufactor so what they do they sell u refurnish parts that r as good as new and cheap. U purchase the item and sent them the broken item back n they give u a credit of $50. I made both purchase an air bag n the compressor n so far everything is working fine. The air bag is super easy to change but the air compressor its a little more complicated. The website is http://www.suncoreindustries.com/ and they even sent u the instructions on how to do it urself. Hope this was helpful!

Posted on Jul 19, 2009

  • 141 Answers

SOURCE: How does one reconnect the air suspension

You probably have a leak in the system. Did "they" check the lines and air suspension? "They" probably disconnected the compressor to keep it from burning out from overuse. You need to fix the leak before reconnecting or the compressor will wear out very quickly.

Posted on Aug 09, 2009

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Installed a new Compressor and Dryer on my toyota coaster. Did let go all the air in the reserve tank. Run the vehicle for 20 minutes, The pump did cut out when get hot. Still the rear will not lift.D


no year,stated.
is this an HVAC question? and A/C compressor?
what air.? and what refrigerant? R12? or what?
on A/C systems, when breached , it needs to be pumped down
hard with a vacuum pump, as any moisture in the system renders it useless. or weak. and it will need oil of the compressor is new.
you seem to me , skipping all sacred steps, 1 by 1.... or?????
what got hot?. engine or compressor.
the rear will not lift, what rear of what, and lift what does that mean.??????????

have you read a book on basic, A/C yet?
or even the FSM on your car?

btw, on all modern cars, the Compressor clutch does cut out for
for up to 6 reasons. some are to protect the compressor from damage. (and icing of evap core, engine overheat, etc)

Dec 07, 2013 | Toyota Land Cruiser Cars & Trucks

1 Answer

Air suspension compressor sounds bad and wont pump up the rear on a 2003 mercury grand marquis


What is odd is the compressor stopping after so short a time. It may be your only problem.

When you have a leak in the system, the compressor keeps running because the sensors do not signal for it to shut off. On your vehicle it is either being told to shut off prematurely or the compressor is triggering a circuit breaker.

There are ride height sensors on the rear. If the vehicle was lifted without turning off the Air ride, the sensors may have been stretched.

You can check for air leaks in the suspension bags, and air lines using a spray bottle of soapy water. There is also a Master dump valve that should be ahead of the Drivers front tire/radiator well area. It is not a concern unless there is no pressure in the system.

Finally, just as the engine can express diagnostic Codes, so can the suspension. You need a better scanner to do this function. It is the quickest way to find the problem.

Please rate my info.

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To begin with, check the "ride level" fuse and make sure that the ride level compressor does work, and you should be able to hear that the ride level compressor is working when the ride level system is leveling the vehicle.

The ride level system uses an air compressor and either an air type of shocks or a type of air billow to raise and lower the vehicle, there is an adjustment to set the ride height and it is located under the vehicle and there is a control lever or rod that should be connected between the rear axle and a switch that is mounted on the body of the vehicle, and there will be an adjustment slot in the control lever between the switch and the body, and that is how you would adjust the ride level height, but be sure that the vehicle can not drop any further down if someone is under the vehicle trying to adjust the ride height.

However, you might find that the control lever to the ride level has fallen off from the switch on the body or it has come loose from the rear axle, and it is just hanging there not operating the switch on the body that controls the the ride level compressor, or there might be a blown out air shock or billow, or you might find that an air line from the compressor is leaking and the ride level compressor will just run continuously until it blows out the fuse, and if that is the case you might also find out that the air compressor has burned out from running continuously.

I hope that this information will help you to solve your ride level problem.

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2001 Navigator rear suspension sagging. While


It sounds like one of your air bags could have blown. I would check them first. I would also suggest checking into a replacement non air conversion kit from Strutmasters. I replaced the air system on my 2002 Navigator and saved a lot of time, money and headaches.The lines on my navigator had holes in them and I replaced the compressor twice before I realized it. Very costly. Avoid all the hassle and check out Strutmasters.

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1 Answer

Electronic level control not working right in a 1999 cadillace deville, what can i do to fix it?


To begin with, check the "ride level" fuse and make sure that the ride level compressor does work, and you should be able to hear that the ride level compressor is working when the ride level system is leveling the vehicle.

The ride level system uses an air compressor and either an air type of shocks or a type of air billow to raise and lower the vehicle, there is an adjustment to set the ride height and it is located under the vehicle and there is a control lever or rod that should be connected between the rear axle and a switch that is mounted on the body of the vehicle, and there will be an adjustment slot in the control lever between the switch and the body, and that is how you would adjust the ride level height, but be sure that the vehicle can not drop any further down if someone is under the vehicle trying to adjust the ride height.

However, you might find that the control lever to the ride level has fallen off from the switch on the body or it has come loose from the rear axle, and it is just hanging there not operating the switch on the body that controls the the ride level compressor, or there might be a blown out air shock or billow, or you might find that an air line from the compressor is leaking and the ride level compressor will just run continuously until it blows out the fuse, and if that is the case you might also find out that the air compressor has burned out from running continuously.

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MY CAR IS RIDING LIKE A LOW RIDER I HEARD A LOUD GASP OF AIR AND THEN THE BACK DROPPED AND I CANT REALLY DRIVE IT NOW , I HERE THE COMPRESSOR WORKING LOUDLY AS ALWAYS BUT ITS NOT LIFTING THE REAR 2000 4WD...


If your not too familiar with air-suspension, send it in. But I can tell you that the air-compressor will not last too much longer if it runs constantly.
You need to go underneath and find out where the air is coming from while the compressor is running. It is possibly coming from a defective proportioning valve, bad air-line or defective air-bag.

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It could be a wheel speed sensor that went out or something... When working with the wiring, something could have just gotten crossed or tapped to get these codes as well. The compressor shouldnt be running anymore if everything was tied off properly. Take it in somewhere and have the codes cleared and that should fix the problem hopefully. I know AutoZone has a reader, but I do not know if they have they ability to clear the codes.
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1 Answer

1990 Oldsmobile Ninety-Eight Regency compressor runs when car is off.


The compressor you refer to is the air suspension compressor. It provides air to adjust the ride height of the vehicle. If you will notice by looking underneath the rear of the vehicle you will notice air adjustable rear shocks, or struts. They have plastic tubing plumbed to the compressor under the hood. There is a ride height sensor for the rear of the vehicle attached from the chasis to the rear differential. Whenever the height of the rear of the car is below the threshold setting of the sensor, the system activates a relay and turns on the compressor to raise the rear of the vehicle above the minimum height specified by the manufacturer. As the vehicle ages the air envelopes of the struts loses structural integrity and seepage, or leakage develops. Some depletion of air is normal, but the compressor power supply is independent of the key position, so the compressor can run, and will run anytime the height falls below the minimum. If the car sets unattended for several days, (or weeks) the compressor can run the battery down while maintaining the minimum height. If the system leaks too much air the compressor can burn-out trying to replenish the system. If you notice the compressor runing for an extended period of time, or running too frequently you should have the system checked for the source of the leakage. (Or you can do it yourself with soapy water and a spray bottle by soaking the air bellows on the shocks or struts, and all the lines and fittings from the shocks to the compressor) If you intend to work underneath a vehicle, service stands are mandatory! DO NOT UNDER ANY CIRCUMSTANCES ATTEMPT UNDER VEHICLE SERVICE WITHOUT PROPER SERVICE STANDS IN PLACE AND STABILITY VERIFIED WITH APPROPRIATE FORCE TO PROVE THE VEHICLE CANNOT BE KNOCKED-OFF THE SERVICE STANDS!

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