2004 Lincoln Navigator - Answered Questions & Fixed issues
04 navigator has no brake light
First, check the bulb if they are busted. Next is to check the fuse box and locate fuse for either stop lamp, brake light or other label that pertain to stop lamp, they may be busted too. Then, check also the wire connected on the brake light switch. It could be worn out already.
on Nov 19, 2018
04 Lincoln Navigator Air suspension hose got
There are scanners which have a function to diagnose the air-ride system. It will take a more expensive scanner that has this function to do the job. Since some electrical shops charge by the hour, a scanner pin pointing the problem in minutes will save you money. Replacing the correct part will also save money instead of financing trial and error parts buying.
Some of the system is activated by the opening and closing of your doors. Parking slope also activates the system to level. The master dump valve for maintaining pressure is located around the bottom front of the front wheel well.
While the air system is expensive, overall replacing one component is a lesser expense. If you did not have air ride the vehicle would handle differently. You get what you pay for and maintenance is a cost other people do not pay with plain steel springs.
Take your vehicle to someone who has a compatible scanner to read your air ride.
on Oct 07, 2017
Front air suspension stopped working
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
Visual Inspection Chart
- 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)
- If the inspection reveals an obvious concern that can be readily repaired, correct the concern before continuing with Inspection and Verification.
- If the concern remains after the inspection, use the scan tool connected to the data link connector (DLC) to retrieve continuous diagnostic trouble codes (DTCs) and to execute On-Demand Self-Test diagnostics for the 4WAS module.
- If the On-Demand Self-Test is passed and no DTCs are retrieved, GO to Symptom Chart to continue diagnostics.
- If DTCs are retrieved, go to the 4WAS Module Diagnostic Trouble Code (DTC) Index in this section.
- If the 4WAS module cannot be accessed by the scan tool, Go To Pinpoint Test A .
on Oct 05, 2017
I have a 04 Lincoln
Navigator the air suspension
typical dealers response
indicates that there is a faulty non-return valve in the system that is passing air when sitting and allow air in and out when compressing
I would start by checking the valves at the discharge line at the compressor, working to the air reservoir valves then onto ride height control valves finishing with holes in the air suspension bags them selves
yes it work doing the checking but there is no real expense until you find the faulty part and I am sure that it will be less than the quote
on Sep 16, 2017
2004 Navigator 5.4l dohc passenger side lifter tap.
Are you absolutely certain the noise is lifter tap and not an exhaust leak? These are pretty well known for breaking exhaust manifold studs, or even cracking exhaust manifolds. The noise will be present on a cold engine but might go away as the engine heats up and the manifold expands. Maybe that's why it seems to go away after adding additives or changing the oil. It gets just enough heat in the engine to fool you in to thinking the issue was resolved by adding the oil/additive. Are you always adding to a cold engine?
on Apr 04, 2017
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