AC clutch wiring.

[Bigredford]

Hello all. I’m brand new to the forum, any help would be appreciated. I can’t seem to get the AC clutch to engage. I have jumped it and it engages. Can someone please tell me where the pink/light blue, black with yellow, black wires connect. I have a new 2 wire pigtail.

1993 F350, 7.3IDI

 

[franklin2]

Here's the diagram. Leaves the clutch connector and goes right to a diode resistor assembly. From there it goes to the low pressure switch on the dryer can.

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[Bigredford]

Thank you very much. Do you have a pick of where the pink/tb (mine looks almost tan) wire goes? I just can’t find any loose wires on the dryer can.

 

[Rdnck84_03]

Does the compressor engage when you jump the 2 wires at the low pressure switch?

James

 

[Bigredford]

Yes. It engages when jumped at low pressure switch. There are the 3 wires in the loom and I can’t figure out where the third Pk/Lb wire goes. Thank you.

 

[Rdnck84_03]

If you can jump it at the low pressure and it engages then the system likely needs charged, or the low pressure switch is bad.

James

 

[franklin2]

Thank you very much. Do you have a pick of where the pink/tb (mine looks almost tan) wire goes? I just can’t find any loose wires on the dryer can.

The pink/lightblue goes to the computer for the E4OD. If you have a manual transmission, it may be just hanging there from the factory. My 89 has something that looks like a MAP sensor on the firewall, but it came from the factory with a c6. Never have figured that out, but the factory did some weird things sometimes.

 

[Bigredford]

Thank you all very much. I think I might have figured it out. The loom came cut in half so I’m just chasing down the proper wiring. I do have a E4OD. Any pics to where it plugs in would be gold. I’m an idiot when it comes to the wiring diagrams.