What could it be?

Asked by Jun 21, 2017 at 07:20 PM about the 2003 Lincoln Navigator RWD

Question type: Maintenance & Repair

Replaced thermostat, radiator, relays, fuses
and starter. Still will not start. What could it
possibly be. The guessing game is getting
very frustrating.

5 Answers


What is happening? Does the engine turn over or nothing at all?

Nothing at all.


Is the battery good and charged up? Have you checked the battery terminals for corrosion and have you cleaned and tightened the connections? Checked for power at the starter? Is there a security light on in the dash?

The battery is brand new and terminals are clean. Replaced the starter last month with a brand new starter. However, the security light flashes.

Everything has power. Lights come on, windows roll down, radio turns on ect.. It just won't start. Have a half tank of over priced premium gas so im kinda annoyed at it not starting having just came back from the gas station an hr ago.

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