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Auto Zone will read your engine lights codes for FREE.
If your refering to the engine light been on. Auto Zone will check the codes for FREE. If other lights then we need more details...
Make sure you have it out of AUTO LIGHTS ON. Do the lights automatically come on when the car is started? If so, the Auto Lamp switch may be on.
The 2001 Lincoln Navigator spark plug diagram can be obtained from most Lincoln dealerships. The spark plug diagram can also be obtained from most auto-parts stores.
advance auto or OB II code reader
Auto Zone will check your computer codes for FREE. have your codes check and go from there.
Set your light switch to "auto" on the dash and your lights will come on automatically with the ignition. Turn your light switch on your dashboard to "auto" or "automatic" and the lights will come on and off with your ignition switch.
The wheel jack is supposed to be behind the access panel , on the right ( passenger ) side of the cargo area
Auto Zone will check your engine codes for FREE. This way you will know for sure what it is. It maybe a bad Oxygen Sensor.
I have a 2002 Navigator and mine just went out. Its on the passengers side right under the antifreeze container. I just bought mine from here. Less then $200.00 http://www.suncoreindustries.com/english-lincoln-navigator-97-02-air-suspension.html#item11 Auto repair place wanted to charge me $800.00 Hope this helps.. Nancy
your headlight switch needs to be replaced. My Lincoln had the same problem, it all stems from the auto dimmer feature...replace the headlight switch (mine was 70-100 dollars) and your lights will work fine.
Auto Zone will check your engine codes for FREE. After finding out what cause your engine light to come on. Then the problem can be resolve with out guessing.