'98 Grand Cherokee Limited AC system.
#1
Newbie
Thread Starter
Join Date: Jul 2017
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Grand Cherokee
Engine: 4.0L
![Default](https://www.cherokeeforum.com/images/icons/icon1.gif)
I got a G. Cherokee Limited earlier this year and I have been working on getting things how I like it. The previous owner took out the AC Compressor citing it was the cause of a vampiric energy drain. I found the real issue, and sorted it out, so now I am putting the AC compressor back in.
I can't find the high side service port. I have spent the past two days looking tracing the lines and I can't see it. I know the low side is at the back of the engine bay on the passenger side.
tl;dr, where is my high side service port?
I can't find the high side service port. I have spent the past two days looking tracing the lines and I can't see it. I know the low side is at the back of the engine bay on the passenger side.
tl;dr, where is my high side service port?
#2
Senior Member
![Default](https://www.cherokeeforum.com/images/icons/icon1.gif)
Welcome to the forum.
The high side port on my system is on the compressor.
When I purchased a replacement Densor compressor, it came w/ a dummy plate that I had to swap for the original plate. The dummy plate only had a high side port Schrader valve / cap. It didn't have the port for connecting to the vehicle plumbing, or the safety valve.
When I swapped to the original plate on my new compressor, it had everything I needed.
The high side port on my system is on the compressor.
When I purchased a replacement Densor compressor, it came w/ a dummy plate that I had to swap for the original plate. The dummy plate only had a high side port Schrader valve / cap. It didn't have the port for connecting to the vehicle plumbing, or the safety valve.
When I swapped to the original plate on my new compressor, it had everything I needed.
#4
Seasoned Member
Join Date: Dec 2010
Location: Georgia, USA
Posts: 350
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1994
Model: Grand Cherokee
Engine: v8
![Default](https://www.cherokeeforum.com/images/icons/icon1.gif)
I know on my 99 GC Laredo, its on the hard line right behind the radiator on the passenger side. It has a black cap on it, so it's hard to see.