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Old 06-10-2021, 10:51 AM
waggygrady waggygrady is offline
230 Tornado
Join Date: Oct 24, 2020
Location: pa
Posts: 15
AC help

Hi all. I have a 89 Grand and have the AC components on the inside but nothing under the hood. (V8)

Can any one post a diagram of parts needed under the hood and layout. Only have the compressor mounting bracket in place previous owner removed everything else.

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Old 06-10-2021, 11:25 AM
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babywag babywag is offline
out of order
Join Date: Jun 08, 2005
Location: Land of froot loops and cukcoo-nuts, CA
Posts: 9,911
has parts manuals and service manuals with pics
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Old 06-13-2021, 06:47 PM
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mrtazwrench mrtazwrench is offline
AMC 4 OH! 1
Join Date: Nov 10, 2001
Location: s.e. minnesota 55991
Posts: 3,922
I have misc. A/C parts, I installed it on my J20 which never had A/C, I still have parts from other vehicles. You can buy the condenser, dryer, and expansion valve new, and maybe the compressor. You might have to find a shop to make the hoses.
"Let's see that Red Blue Green **** sucker build one of these without duct taping it together!"
87J20 Member, FSJ Prissy Restoration Association
83Cherokee WT
Parts vehicles: 1.5 Wags, 3.5 J20's, 1 J10 1 J300
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Old 06-21-2021, 08:18 PM
'89_Wagon '89_Wagon is offline
232 I6
Join Date: Jan 01, 2019
Location: New Hampshire
Posts: 96
I think wagonmaster sells an AC hose kit now. Price seems reasonable too. Wish I knew about that before I did my system and bought the crimping tool, fittings ECT.
'89 Grand Wagoneer
AW4 Swap
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Old 06-22-2021, 07:31 AM
MysticRob MysticRob is offline
327 Rambler
Join Date: Nov 26, 2019
Location: Boise, ID
Posts: 575
There isn't much to it. There's a couple of hoses from the compressor, one goes into the cabin to the evaporator, and the other goes to the condenser mounted near the radiator. Also two 1-wire connectors for power (orange?) and bypass (black?), I think.

Do you also not have the hardline with the sight-glass on the passenger inner fender, or condenser mounted near the radiator?

Which mount do you have? Since it's an 89 I assume it's for the ovoid Sanden unit, not the rectangular York unit.
1988 Jeep Grand Wagoneer / Baltic Blue & Tan
2008 BMW 535xi Wagon / Deep Sea Blue & Tan

My build thread:
My Howell TBI Install How-To:
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Old 06-22-2021, 02:28 PM
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rang-a-stang rang-a-stang is offline
Join Date: Oct 31, 2016
Location: Camarillo, CA
Posts: 4,240
I have heard it said, on here and other places:
Originally Posted by lots of folks
You are going to spend a lot more money trying to get a factory Jeep/AMC A/C system to work (buying parts, finding pieces, poor fitment, etc) than if you just buy a kit

I have no experience to help so take this with a grain of salt. Mine does not work and I plan to fix it in the next 12 months so I read a lot of posts on A/C here and it is a common thought amongst some folks.
79 Cherokee Chief (passed CA smog check Sept 2020)
(Cherokee Build Thread)
11 Nissan Pathfinder Silver Edition 4x4
09 Mazdaspeed3 Grand Touring
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Old 06-22-2021, 09:16 PM
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FleetFox FleetFox is offline
258 I6
Join Date: Apr 04, 2018
Location: Blue Ridge Mountains
Posts: 279
Check out my build thread and accompanying Flickr album. It may be useful to some extent. I did "remodel" the factory air, but updated to a Sanden compressor and made the system 134a compatible. I had new hoses made using the metal parts of the originals. The rest of the front parts were new repops of the originals bought of the net. Deleted the sight glass and moved the low pressure switch from the fender to the drier. SonaraEd on the other forum helped me a lot with it.

Fleet Fox
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