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'07 Lincoln MKX losing all power

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Jun 22, 2016, 7:59 AM

Post #1 of 2 (860 views)
'07 Lincoln MKX losing all power Sign In

I have a 2007 Lincoln MKX with approximately 40,000 miles. I purchased the car about a year ago from a woman who didn't drive it often and the car was left in her driveway for long periods of time. Had it checked out before buying and everything was good.

I have an electrical problem. Recently I've begun to experience the following symptoms:

1. Occasionally when I turn off the car and pull the key, the car will lose all power instead of staying on until I open the door. It loses ALL power and not just the radio, dash lights, etc. This also sometimes happens when I take the key out (still have power) and open the door to get out, at which point I lose all power and have to lock the doors manually. I can usually get the power back by opening and closing the door a few times which leads me to believe that the door is involved. When the power does come back on, everything resets (the speedometer cluster display, the in-dash radio/Nav reloads the software, etc.)

2. Not sure if this is related, but when I try to turn it on and turn the key, the engine will crank but won't turn over. As soon as I stop and attempt it a second time, the car will crank and turn over normally. Doesn't matter if I'm holding the key and cranking for 1 second or 5 seconds on the first try, it won't turn over, but will immediately on the second try.

Battery was purchased a year ago. Connections and terminals are both secure.

Thanks for any help/suggestions provided.

kev2 profile image

Jun 22, 2016, 8:26 AM

Post #2 of 2 (854 views)
Re: '07 Lincoln MKX losing all power Sign In

lets start EASY things first.

You will need to scan for codes yes even if light is off. BUT you will need a scanner capable of ALL modules.
Advise us if there are any aftermarket changes ie remote starter, alarm etc.

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