Evaporator Housing and Wiring Questions

[WesD]

(I read the AC writeup below - it was helpful)

 

I am adding A/C to my 87 2.5.   The local J/Y has a 91 XJ with a complete system, so I have a couple questions:

1.  Will the evaporator housing from the 91 work in my 87 without mods?

2.  Will I need to replace the underdash wiring harness, or will the existing one work?

3.  Is there anyone offering a compressor bracket for the 2.5L?

4.  Will Renix vs. Non-renix make this a difficult swap?

 

I have done this exact swap before on Chevy full size trucks so it's actually pretty easy if I can figure out the answers to my questions above.   

[Jeep Driver]

Yes, you'll need the compressor bracket for the Renix........belt alignment. 

 

Check on the compressor and hoses for the '91, I don't think they are compatible with Renix. Everything changed in '91. 

[dasbulliwagen]

I did this on my 87, but my donor was an 86. I swapped the box assy fine. The HVAC box has its own harness for controls. I swapped it complete with the control levers and all without even unhooking them. The box harness plugged right into the original dash harness no problem. My issues cam in the engine compartment. There was only a couple wires already  there for the AC. There is a plug on the left inner fender for DEALER INSTALLED AC. Youll need to make the rest of what you need off of this connector. I used the downloadable 88 FSM wiring diagrams to build the wiring that I needed. It all worked fine after that. Good luck, keep us updated.

[Grizzly Adams]

Did you guys have the plug for the sensor on the a/c evaporator ? I’m not seeing it on the harness for my 92. Everything else has been plug and play