Question about 2001 Ford Expedition

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Back end of my 2001 Ford Expedition FWD, Eddie Bauer, was dragging. Had diagnostic test run and found out it needed a new air ride compressor. Had compressor installed, but compressor continues to run nonstop. I have been unplugging battery so battery doesn't run down. How long will the air compressor run for? I was told by dealership that as soon as the air compressor tank is full, the compressor will shut off. Dealership doesn't know how long this will take which I found strange. Back end of Expedition seems to be back to normal height that it was before problems began. Will this compressor eventually shut off?

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The compressor should only run until the rear suspension reaches the desired height. If it continues to run after the suspension has raised to ride height then you may have a leaking air bag/solenoid or line. If you dont have any leaks it is possible the EVO(air suspension module} or relay is at fault.

Posted on Nov 14, 2010

  • Gabriel Barbosa
    Gabriel Barbosa Oct 26, 2012

    Where is located the selenoid and the relay, and how can i check if it's work



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The rear suspension is down on my 1999 Ford Expedition - Eddie Bauer. The cause: while out in the woods I came across a small dip which cause my back left wheel to lift off the ground. The suspension...

I had a 1999 Expedition. When you put the 4x4 on it raises the vehicle an extra inch or 2.
It may help to turn the 4x4 off. Two wheel drive is a lower air setting.
Your original pump may still be good. The problem can be in the front. The compressor is not filling the front suspension to the cutoff point. It will lift the rear after the front end is at running height. Since you lost the front end first, the remaining air bled out there and then the rear came down. Once you shut down the car the suspension was done, all the air was let go.
There are adjustment solenoids on the body but you need someone qualified to repair this.

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