Question about 2003 Mercury Grand Marquis
Rear end sagging and air pump will not run long enough to lift the rear end.
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
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
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
Tips for a great answer:
Dec 16, 2015 | Mercury Cars & Trucks
May 08, 2014 | 2004 Ford Crown Victoria
Aug 24, 2013 | 2007 GMC Envoy Denali
Jan 22, 2013 | 2003 Mercury Grand Marquis
Nov 29, 2011 | 2004 GMC Envoy
Jan 08, 2011 | 1991 Lincoln Town Car
Jun 27, 2010 | 2001 Ford Expedition
May 24, 2010 | 2001 Lincoln Navigator
Feb 06, 2010 | 1992 Cadillac Seville
Sep 29, 2009 | 2004 Hummer H2
177 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: