So I posted on here before about my ac
woes. I've been messing with this off and on for about 2 months. I'm kind of at my wits end, I think maybe I'm looking in the wrong place.
Here's the deal.
New compressor, accumulator, condenser, and lines when I installed the cummins.
In the process of trying to figure out why the compressor wont turn on I replaced both the ac
clutch cycling switch and dual pressure switch, first with autozone parts, then I thought maybe it was bad sensors so I got oem ford. Still nothing.
I even found though this whole process with evac and recharge 5 or 6 times that my orifice tube was clogged. That fixed my pressures. They're about 70psi static and with the compressor on its 35-40 and about 170 at 70ish degrees.
If I jump the red/yel to the tan/lt.grn at the dual pressure switch the clutch will engage and get cold.
I've confirmed I have 14v on the violet at the clutch switch, and when its plugged in I have 14v at the dual pressure switch. I also checked that the blk/yel was getting a good ground.
So this has me thinking maybe something else I'm overlooking is causing it. I've heard the electronic fan clutch is somehow tied into the ac
program so it comes on with the ac
command. Could a fan issue cause the compressor to not kick on?
Can anyone explain to me the purpose of the second tan/lt.grn wire on the dual pressure switch? It shows to be switched to ground but the schematic says its "ac press switch input"