It depends on where it is leaking. You can just buy a rebuilt dryer from Suncore Industries for $30.00.
Likely a leak in the system, like one or more of the air shocks are leaking.
My guess would be it was coming on alot to fill the bags which were probably leaking and burned itself out which means it has to be changed.
oil leaking on your spark plugs in your Lincoln LS because you have a leaking valve cover gasket.
Perhaps water pump is leaking?
I am assuming you are referring to a spring brake assembly on air equipped vehicles. If this is the case, normally a leaking chamber would not cause an air compressor to go bad. Some causes for air compressors not to build pressure are: defective air governor, restricted air intake and discharge hose (hose from compressor to air dryer or air tank), bad check valve at dryer or tank, leaking discharge hose (mainly the cloth covered-Aeroquip-spray soapy water at hose with engine running, if it bubbles hose is leaking thru the cover), unloader valve at compressor and some other. The ones I mentiond here are probably the most common.
The pump is in a compartment below the air filter. I have heard that the pump usually goes out because the air bags or lines are leaking.
There are a different possibilities. 1. The compressor is not working. If it works, then it pumps max. 90 seconds of air to the airsuspensions. 2. One of the front-airsuspensions or both is leaking air.
Bad solenoid, leaking bags
No.
remove and replace defective components
Unless you have special tools to remove the clutch you don't. Buy the complete assembly either rebuilt or used from a car parts recycler. I assume from your question the compressor seal is leaking, if so go the above route.
replace it