My 2006 ford expidition is fully raised in the back, won't come down ,replaced the height sensor, still did not fix problem help

The throttle body bore must be spotless. It tends to build carbon at the chamber where the throttle plate touches at the fully closed position. After you solve that cleaning issue, use Lucas additive or Mercury Marine (yes, that one) Quickleen twice a year. Presto, no reoccuring issues. Be thorough !

Ford Air Ride Rear Suspension Down Diagnosis & Fix ...

? 9:57
https://www.youtube.com/watch?v=wfh7n17hvN8
Feb 24, 2014 - Uploaded by FordTechMakuloco
Ford Air Ride Rear Suspension Down Diagnosis & Fix ... why theair ride compressor is not turning on and pumping up the air ridesuspension on your truck. ... Ford Expedition & Lincoln Navigator Air Ride C1725 Common Faults ... 2000 Ford Expedition - Replacing the rear shocks with load leveling shocks ...

2003 Lincoln Navigator air suspension fix(3) - YouTube

? 3:41
https://www.youtube.com/watch?v=MhWlcYycny4

Hi
There should be a set of levers on the right hand side (left hand if you are on the left). one of these will move the seat back and forth, one will raise and lower and one will move the seat back.
Some of these rise and fall levers are a "pump action style" where you push down to get the level or pull up.
Other type will raise the seat fully either up or down. Its on a cam.
I have had these seize before and have had to replace the mechanism.
Cheers
Roger

1. Locate the automatic level control height sensor under the rear of the vehicle on the rear suspension support. If the back of the car is too low and will not pump up, ground pin B Yellow wire and see if the compressor will come on and the car will raise.

2. If the car does raise when pin B is grounded, check the powers and grounds to the height sensor.
3. If the powers and grounds are OK and the pump does come on and the car raises when pin B is grounded, the height sensor will need to be replaced.

4. If the car is too high and will not come down, ground pin E White wire at the height sensor to see if the car will lower.

5. If the car lowers when the White wire in pin E is grounded, check the powers and grounds to the height sensor.

6. If powers and grounds are OK and the car does lower when pin E is grounded, the height sensor will need to be replaced. Tech Tips: There are two different automatic level control systems for this car; one is without RPO F45 and one is with RPO F45. The system without F45 has an automatic level control height sensor and with F45 the automatic level control compressor is controlled by the continuously variable road sensing suspension module. Tests/Procedures: 1. Using a head lamp as a load, test the ELC height sensor power/grounds.

2. The power feeds are: Orange wire, pin C and a Brown wire, pin D.

3. The ground is pin A, Black wire.

4. Ground the White wire at the height sensor, check that the vent solenoid in the ELC compressor clicks and vents the air from the system. Author: Bill Siegmann

Someone will need to figure out if it is the height sensor, or the pump, or a leak somewhere.
The sensor turns on the pump when the height is too low.

Try this from my previous post....

Have a similar problem... My 2003 Lincoln Navigator was manufactured May 22, 2003 so it's the late model that came with the Intec 5.4 Liter DOHC V-8 (not the Triton engine).

I replaced the two front ride height sensors (one for each air strut) and replaced the one rear ride height sensor that controls the ride height for BOTH rear air struts. (Yours may have one ride height sensor for each of the rear air struts.) That solved the problem for a few months during the warm months, until the weather started cooling off. Then back to the same issue.

The front passenger air strut started releasing air from the solenoid (air block) making a "hissing sound." Replaced BOTH front air strut solenoids (connected at the top of each air strut). That also resolved the problem for a few days. After going all around the world, I discovered it's the Air Ride Control Module (ASM) that was the problem all along.

This issue usually occurs when the vehicle is between 60 - 70 mph. There is no official solution to this issue, it should have been a Ford recall, as this fault is dangerous.

There is a known malfunction in the fly by wire system that is suspected to be the cause of this system failure. The throttle body assembly gets replaced when this occurs as a possible solution to the problem. Check the connections on the 2 tps sensors first before assuming the replacement is necessary.

Sounds like it might have a bad height sensor.

Check the height sensor operation on the left rear wheel and see if the link from the sesnor to lower arm is connected. When sensor arm is pushed up the car will be raised up. Take a small screwdriver and unclip the lower link. With ign. on and car not running lower link to see if it lets the car come down. You may need to adjust or replace the height sensor.

Sounds like you have a bad air shock.