Question about 2004 Lincoln Navigator

3 Answers

Air suspention in not working, car is on the ground. Replaced the compressor and relay and fuse. I can get not power to the compressor. What may be the problem?

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  • Pete MacSparran
    Pete MacSparran May 11, 2010

    I'm not sure exactly what happened before you had this problem. I'd like to know the mileage, when this happened, the conditions the car lives in(ie. desert,steppe,forest,jungle,lol). If it's the same as all Ford products with this issue the body cpu is probably faulty. Make sure to check all the main fuses/ fusible links to be sure they're ok. You'll find those under the hood, near the battery. Was it in a flood ever? Last but not least, get a wiring diagram for it & check all the power & grounds. Long & short check the simple first, don't jump right on the body cpu until you do the rest!

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  • Master
  • 721 Answers

Fordexpert had a good point I forgot to mention, the air ride switch needs to be on. Like he said, check in the manual but it's usually in the left rear interior panel ( driver's side). They'll be a place to pull open. The thing you're looking for is a switch, the fuel cutoff is probably in the same spot,so don't mess with that. It has a red button on top. Usally it's activated in a crash to keep you from burning alive, but I've heard of it messing up if you mess with it too much. It's a circuit breaker, so if you touch it it shouldn't hurt anything just don't beat on it,lol. Worst case, if it doesn't start after you mess around back there, go back in the same panel & push the red button back down,should be fine.Peace

Posted on Jun 18, 2009

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  • Master
  • 414 Answers

When did it quit working?

Posted on Jun 18, 2009

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  • Lincoln Master
  • 5,520 Answers

Backtrace the power, try a test light or multimeter. Disconnect fuse and see if you have power inside the fuseholder. If power is there then if relay is next in line check power in and power out to motor. There is a cutoff switch in the rear area (check owners manual). When you service cars with air ride you always turn off suspension when the car is lifted on a hoist or jack.

Posted on Jun 18, 2009

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