Re: air suspension is dead on the ground fuse is good...
Air suspension shut-off for 94 Lincoln Executive Towncar is in trunk on passenger side.
My experience. Air suspension light came on. Had blown Air suspension fuze (30 amp). Replaced fuse and started car. It blew immediately.
Checked fuse/relay box; (about 4 X 6 X 1 black box in engine compartment passenger side). When you open box, lid has fuse/relay functions on inside of lid. Talked to Checker deskman who had garage experience, He suggested swapping horn relay with suspension relay after confirming same pin arrangement. Pulled relays, wiped surface of female sockets with dry paper towel and lightly dressed pins on relays to remove any oxidation. Inserted horn relay in suspension relay slot and new 30 amp fuze in fuze slot. Turned on ignition key to power (not crank) position so I could hear pump motor if it kicked in. It did! Turned off key and replaced relays in original position. System worked. Only thing I can figure is either the pulling of the suspension relay or the clean-up of surfaces fixed problem. If it hadn't would have bought new relay. Web prices around $30.
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Some of the Vehicles with Air Suspension require the Pump to be shut off , before you lift the Wheels, off the Ground. The hissing noise indicates the bags ruptured and need replaced, at the very least. If there is an air suspension Cut-off, it is usually right front Kick Panel Location. If not you made need to pull a Fuse. Without a Manual, you are kind of hosed. Buy a Manual , for around $30, at the Local Parts Store.
There is an air compressor mountedmabove the rear suspension. The fuse for the air ride suspension is located behind the trunk rear trim panel. There is a level sensor on the rear control arm. If fuse is good, check for power at plug feeding compressor, compressor failure common. With suspesion at low position, sensor should send power to compressor. if no power suspect height sensor. Check relay for power and operation although failure rare.
First, you may have leaks in your bags, causing your suspension to drop. The other possibility is that your rear suspension level sensor is faulty, causing the suspension to readjust itself incorrectly.
if you're talking about a 94 town car, it's under the hood in the 'engine compartment fuse box' my book says fuse "U" is air suspension. Also beside the fuses are four relays. the second one down is 'air suspension relay'. hope this helps.good luck.if i fixed ya please rate me. thanks
I have the same issue. Mine is a leak in the air suspension. The first thing to do is go to your under hood fuse box (the one with the oversized fuses) The fuse will be a 30 amp (large green) fuse. If the fuse is blown just go to Pep Boys,Kragen,or Autozone and they are less than $3.00. If this fixes it the air suspension will fill up within a couple of minutes (with car running) Usually these fuses will blow when you have a leak and the small compressor that fills your suspension gets overworked causing the fuse to blow. If that is the case with your vehicle keep a couple extra fuses handy until you get the car serviced. The only time you should flip the switch to the off position is when you are raising the car on a jack. Make sure the switch is flipped on when you replace the fuse.
check the air suspension switch in the trunk, should be on the right hand side facing the trunk. make sure it's on. when ever you raise the vehicle, you have to turn it off. someone might have forgot to turn it back on. good luck.