2008 Lincoln Navigator Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2008 Lincoln Navigator
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2008 Lincoln Navigator ProblemsCheck Engine Light due to Water/Coolant in Spark Plug Recesses
Our technicians tell us the spark plugs in this engine can be very difficult to remove. Ford has issued a service bulletin (08-7-6) to address this issue, which includes a recommended procedure on how to remove the plugs. Failure to follow the recommended procedure can result in the one or more spark plugs breaking off in the cylinder head.
The recommend procedure is as follows. Using this procedure will greatly reduce the chance of breaking a spark plug.
1. Break the spark plugs loose when the engine is warm.
2. Turn each plug 1/8 to 1/4 turn and soak the treads with 1/2 to 3/4 teaspoon of Motorcraft Carburetor Tune-Up Cleaner or a quality penetrating oil. Do not try to remove the plugs at this time.
3. Let the threads soak for at least 15 minutes.
4. After the soak period, tighten and loosen each spark plug, working it back and forth until the turning effort is reduced. Then, you can remove the spark plug.
There are special tools available to remove the broken spark plugs and repair shops will often charge additional labor time, over and above the quoted spark plug replacement cost, for the removal of each broken spark plug.
In high dust areas, problems with the EGR system are common. The filter for the EGR solenoid may plug and cause the EGR to activate when it should not; this can cause the engine to stall. The dirty filter should be replaced to correct this concern.
2008 Lincoln Navigator QuestionsWhen driving my truck the RPM gage goes above 3, is it the transmission? (1 answer)
I was having problems with the gear shifter not working, I took it to the dealership and they said it was the brake light fuse.
scaned it and bank 4 misfired
2008 Lincoln Navigator RecallsTire Pressure Monitor Calibrations May Be Incorrect
On 158 vehicles intended for limousine service, the tire pressure monitoring system may not have been properly calibrated. As a result, the tire pressure warning light will not illuminate as expected. Dealers will reconfigure the tire pressure monitor system thresholds to the appropriate pressures. This recall is scheduled to begin on April 23, 2008. The Ford recall number is 08C03.
The interior door handles have return springs that may fracture, which can prevent the handles from returning to the closed position. In an accident, the door may open, which could result in injury to occupants. Dealers will replace the interior door handle springs on the side doors. The Ford recall number is 08S03. This recall began on March 5, 2008.