1987 cadillac deville - next to battery, there's an air pump (with a charcoal filter) with a small plastic tube going through firewall that doesn't appear to work. What system does this support? I cant find it in service manual or on any electrical/system diagrams
Check fuse and relay for this, but you may have a bad pump.
November, 9, 2011 AT 9:43 PM
What is the name of the pump, and what system is it? Why does air tube go through firewall, and what does it control?
November, 9, 2011 AT 11:20 PM
It controls the air ride suspension in the rear.
November, 10, 2011 AT 2:59 AM
This is the level ride compressor. Does the level ride come on the dash?It has a test wire right where the harness is. Youll see a wire by the compressor not hooked to anything and maybe taped back. It has a green connector on it. Turn the key on and ground that wire. The compresser will start running. We will start here. AddReply to Question