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What would cause the air suspension on a 2003 Lincoln navigator not to work?


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2009-02-18 00:33:34
2009-02-18 00:33:34

there are several causes to the air pump. the first and most obvious is the air pump (compressor) itself. if you do not hear the compressor pumping air or if you do not feel the slight vibration of the compressor when you put your car into drive, then it's probably the compressor that has gone bad. if the compressor is coming on and you do not hear any air leaking, then your problem could be the height adjuster, located on the suspension bags themselves. Bronconvict: another possibility includes the compressor relay switch. This switch controlls the power to the air bag suspension compressor. This switch is known for burning out when the suspension compressor is working too hard. This can also be caused by a bad/corroded GEM module (due to notorious winshield leak). i had to replace "height sensor" on driver side . part was $200.


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there can be many different problems but it could be a bad relay switch to check it get on the floor on the passenger side and check to see if the air suspension relay switch is on, try that for now, usually if someone uses a jack to raise the car and the tires have to come off the ground,they switch it off, so the height sensors don't mess up. but it this causes the check suspension light to come on.

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Not sure if you are asking what a suspension is or what kind of suspension the Navigator has... I believe that most Lincoln Navigators have what is called an Air Ride Suspension... There is an air compressor in the engine compartment that pumps up air shocks in the front and air bags in the rear of the Navigator. What this is doing is basically auto leveling the vehicle. I guess the best way to describe this is that if you go pick up an overly obese person and they get in your Navigator, the Navigator will compensate for your passengers weight and add more air to the shocks/bags on their side to keep the vehicle from sitting lop sided... When your passenger would get out, then air would be released from the shock/bag on their side to level the vehicle back out. Good answer describing the air suspension that is on these vehicles. I happen to have a 2003 Lincoln Navigator and through a long process I learned a lot about these suspension systems. With anything air you have leaks. Well one of my airbags started leaking. Easy fix right.... just replace the air bag. YEAH RIGHT!!! Not only did my air bag give out, this caused my compressor to run constantly. So there's another component in this air system that I had to replace. To make a long story short I ended up with a quote nearing $1500 for all parts from the dealer. NO WAY was I paying that much, so I started searching for more options and that's when I found Strutmasters. They are a company that made a passive non air system with coil springs to replace the air. The salesmen I dealt with took the time to explain my problem to me and helped me make a great discussion. I am now a happy Navigator owner instead of a worried one :)

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No, a bad rear sensor to an air suspension compression would not directly make a motor not work. It can cause a battery to drain which would cause starting issues.รŠ

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