Question about 2003 Mercury Grand Marquis

1 Answer

Can a faulty drivers door open module cause my 2003 mercury rear air suspension to sag?

Rear end sagging and air pump will not run long enough to lift the rear end.

Posted by on

1 Answer

Why would you ask that?

Drivers door module has nothing
to do with suspension,only windows
& door locks,limited body functions,
not suspension system

I would replace all four corners with conventional
struts/shocks & disconnect the air system,then
you have something worth having on your car

Posted on Jan 24, 2013

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Posted on Jan 02, 2017

  • 5495 Answers

SOURCE: 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.

Posted on Jan 22, 2013

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Dec 16, 2015 | Mercury Cars & Trucks

1 Answer

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


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

May 08, 2014 | 2004 Ford Crown Victoria

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.

Jan 22, 2013 | 2003 Mercury Grand Marquis

3 Answers

When my envoy sits overnight my rearend drops down


There has been a service bulletin for that type of concern. Here is what it states.









Suspension - Rear Suspension Is Low/Sagging/Uneven

Notes




ENGINEERING INFORMATION

Bulletin No.: 06-03-09-006B

Date: December 15, 2008
Subject:
EI06006 - Rear Suspension Uneven, Sagging, Low (Recalibrate Air Spring Sensor)

Models:
2006-2007 Buick Rainier
2006-2007 Chevrolet TrailBlazer SS
2006-2007 GMC Envoy, Envoy XL
2006-2007 Saab 9-7X


with Suspension Pkg - Rear Load Leveling (RPO G67)

Supercede:

This bulletin is being revised to update the labor operation in the warranty information. Please discard Corporate Bulletin Number 06-03-09-006A (Section 03 - Suspension).

Condition

Some customers may comment on the rear suspension being uneven or sagging.

Correction

DO NOT REPLACE THE COMPRESSOR.

Based on technician feedback, engineering has determined that the customer's concern can be corrected by recalibrating the air spring sensor. Refer to the Trim Height Uneven or Low diagnostics and Air Spring Sensor Calibration procedure found in SI.

Nov 29, 2011 | 2004 GMC Envoy

1 Answer

The air suspention pump is not working


Use a test light to the air suspension pump to see if it is getting current. I assume that the rear end is sagging a bit as far as ride height, due to the pump not working. Also, may try to remove and replace pump, assuming that's the problem, and then when the rear air shocks pump up, make sure there are no leaks after shutting down the vehicle.

Also, make sure that the shut off switch for the suspension isn't flipped to 'off.'

Jan 08, 2011 | 1991 Lincoln Town Car

1 Answer

Rear suspension sags


Your vehicle has air bags that are part of the suspension. They are made of rubber and over the years thaey get cracks in them.This also can cause the air pump to run continusly to the point of burning out the pump or blowing the fuse, There is also a little arm that attaches to the rear end that may have come off. This part goes to a sensor that could keep it from not airing up the air bags, If you don't hear the pump coming on see if the fuse has blown. If so replace the fuse see if the pump comes on. If it pumps the vehicle up get a spray bottle full of soapy water and spray each air bag to look for leaks. There is a place that sells remanufactured air bags on the internet or try this number 18665972397. hope this helps leave comment

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4 Answers

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2 Answers

My 92 seville is sagging in the back any ideas on


Yes doe's your car, have the air ride suspension if so you need to replace the air pump or the air ride shocks on the rear or look for a valve under the rear bumper or in the trunk to inflate the shocks.. if nowhere to be found then take your car, in to a shop.
Good Luck!

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1 Answer

My 2003 H2 had all the typical air suspension problems. Now the rear is sagging all the way to the 22" tires. Wanting to know if my portable compressor can pump up the bags enough to pick my little girl up...


A conversion kit is a great Idea!! Strutmasters.com has the perfect non air kit for your Hummer. Check them out!! I bought a kit for my ride and love it! Love the price too!!

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