Question about Ford Expedition
Hello, There is one cheap and simple way to find the problem and if you do not, the next best thing is a Dealer or Repair shop with a certain scanner needed to read the AirRide diagnostic plug.
There are several TSB's #03-9-2 and #03-7-9 which concern the AirRide. Contact a Dealer with your Vin# for what may be a FREE repair.
Or you need to mix a soapy solution of water and soap in a spray bottle and go under the truck while the AirRide is active. Then spray the suspension bags, the fittings on the bags, and on every air line you see and work your way to the front compressor. When you hit the bad spot, that will be the leak or part that is bad. Since you are losing air, you should not have built up pressure. Still, glasses or Goggles are advised.
There is usually a Master vent valve on the drivers front undercarriage. This part lets all the air out of the system. If you have a "door ajar light" on, then you have a doorjam or cargo door that is not closed or the jamswitch is bad. The way it works is the jamswitches let the Vent valve know the doors are closed and its time to raise the truck. If any single opening on the truck fails to say it is closed, the vent valve will not retain air.
If you go to a Repair shop for this, the diagnostic plug will report any missing connections to the scanner and pinpoint it. Since the test is quick, it will cut down on the Labor charges.
I hope my solution is very helpful to you.
Posted on Apr 04, 2011
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Posted on Jan 02, 2017
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