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You need to check a few things. Do you ever hear the air compressor at the rear of the vehicle running?
If so, does it run continuously with the ignition on? (that will mean there is usually an air leak either in one of the rear shocks or the air lines/connectors).
If not, either the compressor, or the compressor relay, level switch and/or the fuse may be shot and each will have to be checked.
Does your Buick have electronic level control (ELC), which utilizes air adjustable shocks. ELC maintains the rear trim height under a wide range of loads. Refer to ELC, as applicable ? Have you changed shocks on the back ?
I do not know exactly what the air line to your shocks looks like but most have a molded on end and a spring clip. I am sure you removed the spring clip...... spray the back with lube or WD40 and try twisting to break it loose, once it move by twisting it will probably pull off.
Hello. A couple things may have happened.1, one of the rear air shocks could have blown out, or 2, you may have a air line leaking or broke. We are here to help you get your vehicle diag and repaired. Craig
The rear shocks are eather standard gas shocks, or air shocks. If you have and air system to control the shocks then you would just have to unbolt them and disconnect the air line. Install them just as you took them off. If its just reagular shocks then you would have to remove 2 bolts.
Some cases there are 4 wheel struts, then you would have to unbolt them from the fender wells in the trunk.
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.
rear shock pump runs all the time
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