Lincoln Navigator - Recent Questions, Troubleshooting & Support


If it starts and then dies, check the fuel system. If it runs but will not move check the transmission or a stuck brake system.

2000 Lincoln... | Answered on Jan 05, 2020


there should never be a leak in the system at all when the car starts the compressor should run once about 5 to 15 second to check for leaks
if longer than that you are headed for bigger problems

2003 Lincoln... | Answered on Jan 02, 2020


Try back side fuse panel

1999 Lincoln... | Answered on Dec 24, 2019


JUST WHERE IS THE DAMN FUSE FOR IT....JESUS!

2004 Lincoln... | Answered on Oct 14, 2019


keep pushing the mode switch on steering wheel to get to it

2003 Lincoln... | Answered on Oct 02, 2019


I believe this vehicle does not have a cabin air filter. There is only a mesh that prevents contaminants from entering the blower motor but it is part of the vehicle and isn't replaceable.

2008 Lincoln... | Answered on Sep 29, 2019


It is located on the inside of the right rear window.

2004 Lincoln... | Answered on Sep 24, 2019


Wild guess! You are pushing the switch in the wrong direction. Fingers crossed.

2004 Lincoln... | Answered on Sep 24, 2019


sending unit is bad, sending unit , I would advise replacing sending unit and fuel pump together.--- even though fuel pump is still working , it is old. and could go out ! and you only want to the job 1 time. I guess you know these parts are in the fuel tank? the new strainer will come with new fuel pump. some cars also have a external fuel filter under the car body, you do NOT want a dirty fuel filter with a new fuel pump, it is a big job pulling the fuel tank out of cars. do your research before starting the job. very few cars have a panel where you can get the fuel pump out of the car , without taking the fuel tank out of the car, and yes you do have to take the fuel pump out to replace the sending unit, which sends the signal to your fuel gage. a word of advice let your fuel tank be almost empty, you do not want to lift a lot of gas as it weighs around 8 pounds a gallon, again do your research before you start this job. NOTE , reset your trip indicater to keep track of the miles you drive so you do not run out of gas. until you get parts replaced GOOD LUCK. Tom

2003 Lincoln... | Answered on Sep 13, 2019


Did you clear the code and it came back? Does your shifter lever have excess movement ? if so the shifter tube is cracked and the steering column switches are not completely closed also did you adjust the range sensor for the truck to start? This must be done for it to start

2004 Lincoln... | Answered on Sep 09, 2019


It may possibly fit between the 2 BUT the distance of travel and position of the float would be different places between the 2 tanks, being of different volume that is. Your best off getting the proper unit for your needs, they're not that expensive from and auto parts counter.

2001 Lincoln... | Answered on Sep 03, 2019


no it wont. the air suspension works as a complete system. each air spring has an electric solenoid, each corner has an electric height sensor and then the compressor itself. just energizing the compressor will not open the solenoids or sensors both of which are needed to raise the vehicle. what is probably happening is a failure in the computing system for the suspension system. expensive to repair.

2004 Lincoln... | Answered on Jul 27, 2019


If the rear suspension is not affected its probably a leak or a front height sensor.

2006 Lincoln... | Answered on Jul 26, 2019


The air bags are leaking, replace them as a pair.

2003 Lincoln... | Answered on Jul 26, 2019


What do you think a EEC relay is ?
Electronic
Engine
Control

It is the relay that sends power to the PCM (computer). Try swapping the relay with another one in the fuse box and go from there.

But on your vehicle it's not called that , it's PCM power relay . It's located in the under hood fuse / relay box .


lincoln navagator fuse box-hf21exhxxtnr5rp0vh0zxsgw-3-0.gif right side big square ,second row down. PCM power relay .

2002 Lincoln... | Answered on Jul 11, 2019


this question can oficially be answered in either the owners' manual or by the dealer but I will state this..depending on how far you plan to go..it is usually better on newr vehicles to put them on either a dolly that supports the drive wheels or a trailer behind the rv..by drive wheels I dont mean the steering end.. I mean the wheels that get power from the engine.. this is due to the spinning of the driveline without the engine powering the transmission fluid inside.. sometimes this will tear up or wear out the final drive clutches and cause malfunctioning of the transmission..just to save your sanity..plan on using a tandem flatbed .. if you dont have one..u-haul rents them..the costs will offset a major transmission repair..learn how to load and tie the truck down for safe transporting..good luck and safe travels..

Lincoln... | Answered on Jul 02, 2019


that should not happen. Did you turn the switch off in the back for the suspension? Did you do something else at the same time, like check the spare tire for air pressure?

I have info on 2003 navigator 4 wheel air suspension. Maybe similar

SECTION 204-05: Vehicle Dynamic Suspension — 4-Wheel 2003 Expedition/Navigator Workshop Manual
DESCRIPTION AND OPERATION Vehicle Dynamic Suspension The four wheel air suspension system is comprised of the following components:
  • service switch
  • control module
  • two front height sensors
  • one rear height sensor
  • compressor and drier assembly (includes vent solenoid)
  • air lines
  • front and rear air spring and shock absorber assemblies
  • four air spring solenoids
WARNING: The service switch for the air suspension system must be shut off prior to hoisting, jacking or towing an air suspension vehicle. This can be accomplished by turning off the air suspension switch located in the jack storage area in the rear of the passenger compartment. Failure to do so may result in unexpected inflation or deflation of the air springs which may result in shifting of the vehicle during these operations.

WARNING: Do not remove an air spring under any circumstances when there is pressure in the air spring. Do not remove any components supporting an air spring without either exhausting the air or providing support for the air spring to prevent vehicle damage or personal injury.

Air Suspension Pneumatic Diagram 801e0c4.gif
Item Part Number Description 1 5319 Air compressor and drier 2 5B322 Air line T-fitting 3 5B321 Air line union 4 — Air line Y-fitting 5 18945/5311 Air spring and solenoid
------------------------------
Principles of Operation
The 4-wheel air suspension (4WAS) module commands changes in vehicle height that are necessary for both the load leveling and the vertical height adjustment features.
The 4WAS load leveling feature automatically makes adjustments in vehicle height so that the vehicle is always at trim height, and that constant front-to-rear vehicle attitudes are maintained over the load range of the vehicle. Adjustments in height that are necessary to correct height differences between the vehicle left and right sides for the 4WAS system are restricted to what can be reliably achieved with three height sensors.
The height adjustment feature has three vehicle heights within a two-inch span:
Kneel height — improves the ease of entering and exiting by lowering the vehicle one inch below the trim height in the front and rear when the vehicle ignition is in the OFF or LOCK positions and the vehicle is stationary.
Trim height — normal vehicle ride position; vehicle moves to trim position when the ignition is ON, when the transmission is initially shifted to DRIVE or REVERSE mode, when all doors are closed or when speed of more than 24 km/h (15 mph) is detected.
Off-road height — improves ground clearance by raising the vehicle one inch above trim height in the front and rear when the vehicle is at 4x4 low modes and the vehicle speed is less than 40 km/h (25 mph).
The 4WAS module uses the universal bus protocol, (UBP), module communications network for sending and receiving various signals with the exception of speed, information from the three height sensors, and the air suspension service switch. For additional information about UBP, refer to Section 418-00 .
The 4WAS system holds vehicle height when any door or rear hatch is opened. The system stores front and rear vehicle height the moment any door is detected open. The system then maintains this height regardless of the addition or removal of a load. The system returns to its commanded height when all doors are closed or vehicle speed exceeds 24 km/h (15 mph).

-------------------------------
Air Suspension Service Switch
The air suspension service switch signal is needed to wake up the 4WAS module. Without the module receiving this signal, the 4WAS system is inoperative at speeds below 24 km/h (15 mph) and will not react when the vehicle is raised or lowered. At speeds above 24 km/h (15 mph), the system will be active as if the air suspension service switch is in the ON position.
Vehicles without message center When the air suspension service switch is in the OFF position and the ignition switch is in the RUN position, a "CHECK SUSP" will appear in the RH corner of the instrument cluster.
Vehicles with message center When the air suspension service switch is in the OFF position and the ignition switch is in the RUN position, the message center will display "SUSPENSION SWITCHED OFF"
-------------------------------------------
Inspection and Verification
  1. Verify the customer concern.
  1. NOTE: If the door ajar indicator is illuminated when all doors, liftgate, and liftgate glass are closed, the air suspension will not work correctly. Repair door ajar indicator; refer to Section 413-01 .
    Visually inspect for obvious signs of mechanical and electrical damage.


Visual Inspection Chart Mechanical Electrical
  • Restricted suspension movement
  • Excessive vehicle load
  • Cut, severed, crimped air line(s)
  • Unmounted height sensor(s)
  • Damaged front air spring(s)
  • Damaged rear air spring(s)
  • Battery junction box (BJB) fuses 20 (30A), fuse 27 (5A), and fuse 111 (50A)
  • Loose, corroded, or disconnected connectors
  • Air suspension service switch is in the OFF position
  • Damaged solenoid valve(s)

-------------------------
I fthis does not help, the dealer can hook up his diagnostic equipment and download fault codes. Good luck. Please give best rating if this helps.

2004 Lincoln... | Answered on May 17, 2019

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