Need AC help

Area for stock and aftermarket air conditioning.
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89greenwag
Posts: 4
Joined: Wed Apr 07, 2021 8:05 am

Need AC help

Post by 89greenwag » Wed Apr 07, 2021 8:11 am

Hi new here. I have an 1989 GW with what appears to be factory air inside. The fan works and everything is as should be inside. I'm missing everything under the hood. The compressor bracket is there but not sure for what compressor. I want to replace the hoses because I'm sure they will leak.

Trying to find a diagram of all parts needed including hoses, compressor, condenser etc. I would like to use this original system in the truck rather than just buy a new vintage air system.
Can anyone help?

Thanks
Rich


sirrus
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Posts: 620
Joined: Fri Sep 13, 2019 11:13 pm
Location: Hillsboro, OR

Re: Need AC help

Post by sirrus » Wed Apr 07, 2021 9:42 am

Welcome to the forum! Your GW would come with either York or Sanden compressor - probably Sanden, but I'm not sure where they made the switch. My 88 has York. I'd go with Sanden as it's better/newer design and more efficient than York.

Here is a picture from parts catalog showing both York and Sanden brackets, which one is looking like what you got?

Image

I wouldn't bother with R-12 refrigerant and go straight to R134a. There are kits available that have everything required for conversion (in your case it's not really a conversion, since you don't have anything AC-related under the hood), here is a link for one on eBay that I was going to buy if I had to convert to R134a. Luckily my system only needed new resistor, blower motor and a bit of R-12, but I saved the link just in case :)

In general, for identifying parts and overall education about your rig I suggest getting factory TSM (service manual) and parts catalog. Don't bother with Chiltons or Haynes books, TSM is better. For your year both are available on oljeep.com site in PDF format - 1989 TSM (careful, it's 345 Mb) and parts catalog (35 Mb). You can also get paper version of TSM from BJ's Offroad
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1988 Grand Wagoneer (AMC 360/TF727/NP229), mostly stock and slowly turning into reliable daily driver
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Topic author
89greenwag
Posts: 4
Joined: Wed Apr 07, 2021 8:05 am

Re: Need AC help

Post by 89greenwag » Wed Apr 07, 2021 10:49 am

Thank you so much for this.......extremely helpful!

Rich


89_Wagon
Posts: 21
Joined: Fri Sep 27, 2019 9:24 am

Re: Need AC help

Post by 89_Wagon » Thu Apr 08, 2021 5:45 pm

My 89 has a Sanden. Everything but the fan/housing was replaced a few years ago by me. If you plan to diy it, it's definitely doable. There are some special tools involved but nothing out of reach. Overall, it's very satisfying to get your own AC up and running. It's one of those things that seems like voo doo to most so they won't touch it. But, it's surprisingly simple to setup. If you haven't already, I suggest reading up about AC systems and how they work in general.

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