Question about 2004 Lincoln Navigator
Hello! You have a defective Front Suspension Height Sensor (FSHS).
Sensor is located behind the left front ball joint assembly. Two nuts hold it in place. There is a sensor arm connected to the FSHS. As suspension raises or lowers the suspension arm causes the sensor to change resistance (its a potentiometer). This change in resistance, in turn, signals the air bags to lower or raise the vehicle to the correct height.
CAUTION...Make sure the air suspension is turned off before working on the system.
Shift vehicle to neutral...Lift vehicle...disconnect sensor control arm...remove sensor connector...remove sensor...
Test with an ohmmeter...Resistance should change smoothly...
Tighten to 17 ft/lbs.
Posted on Feb 05, 2010
Did you check the heigth sensor as well? That keeps the leveling maintained
Posted on Feb 05, 2010
Hi based on my 30 years of working on Ford (I am a Ford dealer tech factory trained on this system) air ride suspension the only thing that cuases this drop is leaking airbags, they leak very, very slowly at the crackes that form in the creases of the bag, the whole system is very expensive to keep up after it reaches near 100,000 miles as that is the life span of any airbag spring, the fronts go 1st as u have found out, my best advice to u is replace the air ride system with a conversion kit to conventional strut/shock suspension, believe me you will thank me, the cost to do the front airbags is about $1000.00. go to the link for information and ordering of a kit to replace the system.
Posted on Feb 04, 2010
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Posted on Jan 02, 2017
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