Question about 2001 Lincoln Navigator
You need to have a scanner attached to the test plug for the Air Suspension. It takes a scanner which has more functions than most scanners and you may need to call around if you do not want to go to a Dealer.
The Master Vent solenoid is usually positioned under the drivers front frame and will have air lines going to it. Each suspension bag has a solenoid on it. You can mix up some soapy water and use a spray bottle of detergent and mist the bags and sensors to find leaks.
The doorjams and rear hatch use contact switches to complete the circuit for the Air ride system. The system is designed to lower the vehicle when a door or hatch is opened. If any of the doors or hatches are not closed, the system will not inflate and the air will bleed off when the pump runs.
Usually you will get a dash indication for DOOR AJAR. Your hatch may not send a signal. If you have had any lifting done on the car, the Suspension was suppose to be turned off. This may be what damaged the system.
As Electrical diagnosis is expensive, the quickest way is the cheapest. Having only the correct part replaced is also the cheapest. Check your rear cargo door switch, soap the underside Air System parts, and you will not have much money tied up into testing. After that call to find the proper test tool. Autozone and Oreillys may have the better scanner to loan out or find a Repair facility or Dealer and go from there.
I hope my solutions are very helpful in fixing your Navigator. You might want to ask about Aftermarket parts such as the Vent solenoid.
Posted on Mar 17, 2011
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Posted on Jan 02, 2017
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