usually when u turn on the vehicle it automatically gets adjusted to a certain height,the problem is that it wo not get adjusted at all so I am driving my truck like very low and that makes it look like a low-rider car...(when my suv is off for more than 40 min it goes down,when turned back on,it goes up) problem is,it wo not at all! help...anybody know what it might be?or why?

check the fuses

If u bring it to the dealer, they will run it through the computer, & it will tell u that ur air suspension compressor has died. Then they will charge u about $1000 to replace it. Your best bet is to bring it to a mechanic & tell them that the compressor died, & have them replace it. Just make sure that u can trust this mechanic.

This is a common problem with Lincolns. They use an air suspension system that does not rely on the standard coil-over springs. This can give the car or SUV a plush or firm ride when desired. Lincoln has actually done away with this system now due to costly repairs. However, ur back should not be leaking that much air that early if it is a 2003. Have u been in any rear-end accidents?

When the bags leak that often, it strains the compressor greatly. This causes the comp. to eventually die. If u r looking to trade the Navigator in soon, l suggest just replacing the compressor (very easy, 2 hrs) & not looking into the rear bags. But if u r keeping it, most mechanics can also do the air suspension fixes.

l hope this has not been too confusing for you. l know it can be very stressful. l just had the same problem with my 1997 Lincoln Mark VIII. l spent one month driving my car one inch off the ground back & forth between dealers trying to get my problem fixed. It bottomed out on every hole. That was a nightmare.

Good choice in the Navigator, by the way. The 2003 were very nice. l like the 2007 design too, however.

Well, good luck with the Lincoln.

If it was leaking down after 40 minutes before it stopped working altogether, you have a major air leak in the suspension system. This leak casued a greater than normal load on the suspension compressor, and it has probably failed. You should take it in for a diagnosis, but the compressor is the likely cause.

do not jump to conclusion as far as a bad compressor. Do some checking a few things first. Get someone to get in ur SUV & open the hood & u stand outside of it make sure all doors r closed & have them turn the key to the start position & u wait & listen for the compressor to come on. If after 3 to 5 minutes & it has not came on then there r a few other things to check. The fuse is one, also check does ur air suspension check light come on if not turn off the air suspension switch for about 10 minutes & while its off the air suspension check light should come on. Turn ur air switch back on & do the same thing again making sure all doors r closed & turn the key to the start position. There r several other test to run & things to check feel free to email me.