Replacement A/C compressor not working?

Tiny
MICHAELMAXWELL420559
  • MEMBER
  • 2003 CHRYSLER PT CRUISER
  • 2.4L
  • TURBO
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
Yes, what I'm needing help with is the A/C compressor went out and so I ordered a new one. When the new one got to me, I noticed that it had an extra plug on it that my old one didn't have. So, I didn't think anything of it, so I installed it and now my A/C still doesn't work. Is there any way that I can make my A/C work or do I need a different compressor? I don't have a connection plug for the extra part on my wire harness. Please any help would be greatly appreciated. Thank you
Friday, May 19th, 2023 AT 8:28 PM

7 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi,

When you say there are extra plugs, do you mean electrical connectors? There should only be one wire to the compressor clutch, a dark blue wire with a black tracer. Is that what you are seeing? See pic below.

Let me know.

Joe
Image (Click to make bigger)
Thumb
Was this
answer
helpful?
Yes
No
Friday, May 19th, 2023 AT 11:22 PM
Tiny
MICHAELMAXWELL420559
  • MEMBER
  • 26 POSTS
Not quite the old compressor only has one plug-in connector on the compressor but the new one has 2 connections the regular one and one on the back of the compressor but my car only ha she one plug-in.
Was this
answer
helpful?
Yes
No
Saturday, May 20th, 2023 AT 1:52 AM
Tiny
MICHAELMAXWELL420559
  • MEMBER
  • 26 POSTS
In the picture the green plug in is not on the old. Compressor bit the picture looks just like the new one I have and also my A/C system only has the one port to put the Freon into the system bit it doesn't have the other port.
Image (Click to make bigger)
Thumb
Was this
answer
helpful?
Yes
No
Saturday, May 20th, 2023 AT 1:59 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi,

Based on your old one and what I am seeing in the wiring schematics, they provided the wrong compressor.

The green plug on the new one may be a pressure switch which is located differently. Also, the idea that you only have one port indicates the other should be on one of the A/C lines.

Have you tried contacting the supplier?

Let me know.

Joe
Was this
answer
helpful?
Yes
No
Saturday, May 20th, 2023 AT 9:07 PM
Tiny
MICHAELMAXWELL420559
  • MEMBER
  • 26 POSTS
No, not yet, but I will for sure. Also, the other one that I don't have a plug on my wire harness has to be plugged in for it to work, right?
Was this
answer
helpful?
Yes
No
Sunday, May 21st, 2023 AT 7:30 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi,

If it is a pressure switch, yes, it needs to be connected to work. I am going to ask the site owner what he feels that plug is for. He is excellent with AC systems. You may see a response from him. His name is Ken.

Let me know how things work out for you.

Take care,

Joe
Was this
answer
helpful?
Yes
No
Sunday, May 21st, 2023 AT 7:18 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Hi, I think Joe is correct. The compressor is the wrong one or unit is universal and doesn't need to be used. With the system on I would use a test light to see if there is power going to the compressor.

These guides can help:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

and

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Please go over these guides and get back to us.

Was this
answer
helpful?
Yes
No
Monday, May 22nd, 2023 AT 10:45 AM

Please login or register to post a reply.

Related Air Conditioner Compressor Replace/Remove Content

AC Compressor Replacement Video
VIDEO
AC Compressor Replacement Video
Instructional repair video
Air Conditioner Compressor Replacement
GUIDE
Air Conditioner Compressor Replacement
Need to replace your car's air conditioner compressor? We are a team of certified mechanics who have created this guide so you can save money and get the satisfaction of...
VIEW MORE