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My air suspension went out my 2001 Ford Expedition I replaced the air suspension and the air bags and it still won't rise up What else could be wrong?
Wiki User
∙ 12y ago
By AIR SUSPENSION, I assume you mean the front air shocks. So you replaced them and also the rear air bags. There are other electrical things to trace first. There is a sensor above the rear differential that senses the height of the rear end. Another sensor up front by the wheel on the driver's side. The compressor is located on the passenger side up front and it is buried by the Radiator overflow and/or the washer fluid reservoir. Forgive me for not knowing exactly but I am at work and writing this from memory and my memory is fading with age. But you need to know if the compressor is coming on or not. And if not, why. If you are familiar with electronic troubleshooting, you can apply power directly to the compressor and see if it kicks in.
Is it only the front or rear that is sagging? Maybe only a height sensor is bad. Remove only the bottom of each sensor and manually compress them one at a time. That should fool the computer into thinking that the truck is riding low and the compressor should turn on. If the compressor starts, don't let it go too long. I don't know what happens if you overinflate. Try the front and then try the rear. If one works and one doesn't, then you know you have a bad one to replace.
Of course you could just have a leak too. But try the sensor thing first because it is relativey easy, especially the rear one.
You could also save yourself time and money by putting on a conversion kit (non air). I was about to drop a bomb on getting kitted out with new a new air suspension system but luckily I didn't (especially since I lost my job so money is tight).
Check out http://www.strutmasters.com/Ford-expedition-suspension-s/76.htm&Click=12
You can also save yourself some more money by checking out http://www.airsuspensionsolutions.com (get their free report and there is a special discount code at the end of it).
If you have any question just give the guys at Strut Masters a call - they are very helpful and will point you in the right direction.
Wiki User
∙ 12y ago
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