Question about 2003 Lincoln Navigator

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2003 lincoln won't turn over but battery is good

Drove last night and all was well. wouldn't start or turn over this morning not even a click like battery was bad. charged battery not problem had battery checked not a problem. it's like power isn't relayed to starter all other electrical seems ok. maybe key switch or one of those computer things that i know nothing about. help please 'cause i don't want to pay out the **** to get diagonosed if don't have to.

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  • redskins1 Jan 06, 2009

    what does prndl stand for? my truck power is fine but it will not start. there is a constant beeping coming from under the glove box?????


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This problem is the relay solanoid on the right firewall in the engine compartment. Relay powers everything in the vehicle excluding the stereo and the starter.

Posted on Dec 26, 2008

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Try disconnecting the negative battery terminal for about 5 mins to reset the computer system. if that does work it is probably a malfunction in your computer system or someone tried to break in and the securty system has locked up and needs reset by the dealership

Posted on Nov 30, 2008

  • Antonio Boscia
    Antonio Boscia Nov 30, 2008

    or your starter might be bad, try having someone tap on the starter directly while you turn the key. if it starts to turn over you will need to replace the starter


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SOURCE: I have a 2003 Jeep Grand Cherokee 6 cyl. I drove

What's the odometer reading?

Is there a third party alarm install?

Is there any spark to the plug?

Test #1

Test the neutral safety switch by pressing on the brake,move gear lever to neutral "N" then start the engine.

Check for excess free play on the linkage.
(moving parts between gear lever to transmission)


Test #2

Have a helper for view the reverse lights.

Shift the gear lever to reverse and check the reverse lights.

If the light does no come on then the neutral safety switch is bad.


For vehicle with over 140,000 miles,it's wise to inspect the engine and transmission mounts.

A loose transmission mounts will have more free play and wear out the transmission linkage.

Please do these test and let me know the result on reply.

Posted on Sep 05, 2011

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