At least one of the shocks is leaking and I'm not sure if the air pump is even working. Are there conventional shocks that can replace the air ones?
Air shocks were a option normal shocks can be bought.
SOURCE: rear air shocks 2003 Buick LeSabre
I'd have them checked first to determine if it is actually the shocks, or possibly just a loose or cracked line, which should be a pretty inexpensive fix. If it turns out to be shocks, weigh it out then.
SOURCE: 2004 yukon xl denali self-leveling rear air shocks
There's a lever that connects the driver-side rear shock to the Automatic Level Control module (the air compressor and the ride-height sensor). Disconnect the lever from the shock and rotate it up and hold it. The compressor should kick in when you hold in place after a few seconds. If it doesn't kick in, make sure your fuses and relays are good. Otherwise, you may have a failed ALC module/burned out air compressor (from the shocks being shot). After you replace the shocks (and after you recouped from the heart attack you had when you shelled out $500+ for each shock), replace the ALC module/compressor (it's all one unit), and test it - it should kick on when you rotate the lever up again.
Figure about $350 for the ALC module from your dealer, and make sure the part numbers match! Your truck came with an upgraded ALC module from the 2001-2004 module, which were prone to water damage.
Good luck!
SOURCE: ONE REAR AIR SHOCK IS LEAKING IN MY 2002 PONTIAC BONNEVILLE
you could replace the one shock but do you know why it is leaking oil? Typically unless there was something traumatic to happen to one of the rear shocks, then if one is going you can almost be the other one will go soon. I ended up having too many problems with the air ride suspensions. If you haven't yet, look into conversion kits as something to consider for down the road if nothing else. www.strutmasters.com has a great kit that is made in America and comes with a lifetime warranty. They have a good reputation and track record and can help you save some money and find the permanent solution if anything else goes wrong.
SOURCE: 2005 denali service ride control / air suspension pump
the leak almost 100% of the time is in the air bags of the shocks, there are special tools for isolating the individual shocks and seeing if they leak, but as far as the home repair goes u just replace them or have the dealer test them.
SOURCE: 98 cadillac deville needs rear shocks
I have a 1998 Deville and both rear coil springs are broken.. It also has the air shocks that I dont think work.. Can I put regular shocks in and is there a after market coil spring out there for it ??
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