why wont my navigator start?


Asked by Feb 28, 2016 at 01:04 PM about the 2000 Lincoln Navigator Base 4WD

Question type: Maintenance & Repair

I have a 2000 Lincoln navigator with a 5.4L V8. On way home it died
on me and won't start. It will just turn over and does not try to fire at
all. And when it turns over it makes a weird high pitch whining sound.
What could cause this ?  I watched as it was cranked over and engine
is turning over because all the pulleys are turning.

3 Answers


I've heard it could be the anti theft system, the timing chain or the fuel pump.

Bob Beaman

How many miles on the Navigator?


I have the same trouble , I put a new fuel pump and check for spark , and it has fuel when I put it on cause it comes out the fuel pressure regulator with no problem when I took it off . I think it's the Anti Theft system because the theft light keep flashing and won't go off until after a couple of minutes

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