Lincoln Navigator - Recent Questions, Troubleshooting & Support - Page 3

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
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
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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).

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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"
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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)

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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.

This is something I believe your dealership can help you with, or the instructions that came with your radio.

u have a loss of vacuum to the ac mode control switch, this switch applies vacuum to diff vacuum motors to move air to diff outlets, dash, floor, defrost etc. either the vacuum line or vacuum resivior at the engine is leaking or the mode control is leaking vacuum.

Most likely the problem you are experiencing with the park assist is a fault in one of the sensors mounted in the rear bumper. I would not consider it to be a major fix, however there will be a few hours labor involved as the bumper cover needs to be removed to replace the sensors.

The switch on the brake master cylinder is FAMOUS for shorting out. Unplug it and find the blown fuse. In the fuse box under the hood, fuse 1.5 Your truck may be under a recall for that switch, call the dealer with your VIN number and see if it qualifies.

okay these are controlled by the power mirror folding switch and module and they are powered all the time. you need to check the fuses in central junction box. check fuse f1.22 that is a 10 amp fuse and check fuse f1.3 that is a 7.5 amp fuse. they both need to be good make sure. if they are then you may have a broken wire in the door jam boot on the drivers side let me know how you make out and if you need more help! will be glad to. good luck

see a FORD dealer locally

This may help from my previous post... Have a similar problem, but on the front... 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 a ride height sensor for each ear air strut.) 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 is a very complicated and expensive system to maintain. I would strongly recommend doing a air suspension conversion on your Navigator and be done with the problem forever. Lincoln Navigator Air Suspension Conversion 03 06

My 2003 Navigator fuel filter is located underneath, directly under the driver's side seat along the fuel line.

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

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.

I bought my 2003 Navigator new in June 2003. It was built in May 2003. The instrument cluster ha to be replaced twice (under warranty). Later, the dealership determined the original and the replacement clusters were from a batch of clusters (left over) from the 2002 production run. Ford was great back in the day. I have owned Ford products since 1986. When my Nav with 130,876 documented miles does start to "give up the ghost" I will for the first time be looking at Asian vehicles - Toyota, Hyundai or Genesis. The 2003 Lincoln Navigator had a LOT of complaints in Consumer Buying Guide back in 2003 regarding the electrical systems. The Air Ride is the most prevalent complaint.

may be flasher relay, links which may help (5) Navigator flasher relay replacement - YouTube 2003 Lincoln Navigator - Turn signal blinks just a few times (repairpal.com) SOLVED: 04 navigator flasher relay location - Fixya Fuse Box Diagram Lincoln Navigator (2003-2006) (fuse-box.info)

all code are OBDll and are available on line free. google code codes for answers. https://www.fixdapp.com/blog/p0010-code/ https://www.fixdapp.com/blog/p0130-code/ https://www.fixdapp.com/blog/p0150-code/

Look at the existing bulbs. HID bulbs are a a different shape and have a high voltage ballast because the are a high voltage arc lamp. https://www.amazon.com/XtremeVision-2003-2004-Lincoln-Navigator-Replacement/dp/B01DQ1TYHY As opposed to a standard halogen bulb that has a filament. https://www.autozone.com/collision-body-parts-and-hardware/headlight/lincoln/navigator/2004 The light from HID is much brighter and often brilliant white or blue-white.

Some starter motors can be a tight fit in the mounting hole. Using a WOODEN block or the HANDLE end of a hammer Tap the motor firmly, NOT hard, to the left, right, up and down. This should loosen the motor enough to slide it out.

Question edited for clarity. That is a pretty funky fault. At first thought, it might be a bad connection due to G-Force and inertia, but where?? Then again, the Climate Control is operated by the Body Control Module and various sensors attached to it. You need the dealership or a good auto-electrician with a professional grade scan tool computer. They can do Live Data, Freeze Frame whilst that oddness is happening and tell you the reason why?

Go to an Autozone, Advance auto, or Oreilys for a free Code scan. This will tell you some or all of the problems. Usually this symptom is a result of a bad O2 sensor changing the fuel mix (floating)from lean to rich or the temperature sensor messing with the "cold start sequence".

Fix the fuel pump circuit.