which one?

The bottom pic.... and the end that is broken is the one that loops back up to the upper portion of the compressor. What does that do?

it is just a breather line, it goes into the frame and there is supposed to be a little filter in the end the goes into the frame. what this is for is to make sure the assembly isn't sucking water when it gets wet.

Hello all, I just joined the group. This particular message caught my attention as I have the very same problem with my ELC. I have the compressor off my car and would now like to bench test it to make sure it is really the problem. My part number = 22152835. I have learned that the replacement is 22153324.

My car: 1997 LaSabre

Could some explain the circuit to me? That is, there are four wires going to the compressor in the wiring harness, in this order:

black = ground
white = ?
black with small green stripe = power, I think
white = ?

Note: I don't have a yellow wire.

What do the two white wires do? Are they from a sensor which detects the level of the car? How can I test the compressor on my bench? I've got a spare 12V battery, but I need to understand how to connect it up.

Thanks in advanced for any help.
LaSabreMan