SPONSORED LINKS

Air condition not cold

Tiny
YOUNGSNETWORK
  • MEMBER
  • 2001 PONTIAC GRAND PRIX
  • 3.8L
  • V6
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
I tried to use acpro to boost my ac because it's cool not cold. I followed all directions but when I plug it up it goes to the red. The compressor is coming on when I turn the AC on. I can see it spinning. I wanted ask if the low coolant light would have some affect on this? The coolant level is fine but someone told me it's the radiator level sensor causing the light to come on. I'm putting a new one on soon, but would that affect the acpro to go to red. If not what could it be? Thanks
SPONSORED LINKS
Wednesday, May 22nd, 2019 AT 3:03 AM

46 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

No, they have nothing to do with it.

What is the pressure on the gauge?

What is the outside temperature?

Roy
Image (Click to make bigger)
Thumb
Was this
answer
helpful?
Yes
No
Wednesday, May 22nd, 2019 AT 3:20 AM
Tiny
YOUNGSNETWORK
  • MEMBER
  • 18 POSTS
In the middle of the red. Starts at 60 ends at 150. So I guess 105. Outside about 90 degrees.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 11:14 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
That is high. The pressure should be at ambient temperature.

Check the diagram I sent you. Check the fuses for power on both sides with the key on.

Roy
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 11:25 AM
Tiny
YOUNGSNETWORK
  • MEMBER
  • 18 POSTS
Can you email me that diagram so I can make it bigger?
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 12:44 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Not a valid e mail

Roy
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 12:49 PM
Tiny
YOUNGSNETWORK
  • MEMBER
  • 18 POSTS
Youngsnetwork@gmail. Com
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 12:51 PM
Tiny
YOUNGSNETWORK
  • MEMBER
  • 18 POSTS
Same one on file.
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 12:52 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Sorry, need another email. That one does not work for me.

Roy
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 1:02 PM
Tiny
YOUNGSNETWORK
  • MEMBER
  • 18 POSTS
Checked fuses from diagram, all of they are good.
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 2:54 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Did you verify power on both sides with a test light?

Roy
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 2:55 PM
Tiny
YOUNGSNETWORK
  • MEMBER
  • 18 POSTS
Yes.
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 2:59 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Can you go to the relay and remove it and check for power on two terminals with the key on?

Roy
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 3:10 PM
Tiny
YOUNGSNETWORK
  • MEMBER
  • 18 POSTS
Two have power, and two of them don't have power.
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 3:20 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Okay, when you turn on the AC can you hear the relay click? Install the relay before doing this.

Roy
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 3:23 PM
Tiny
YOUNGSNETWORK
  • MEMBER
  • 18 POSTS
It's just me. The relay is under the hood.
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 3:25 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Can you hear it click? Trying to see if the PCM is grounding the control side of the relay.

Better, turn the key on, go under the hood to the relay and remove it. Then install it and see if it clicks.

Roy
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 3:31 PM
Tiny
YOUNGSNETWORK
  • MEMBER
  • 18 POSTS
I tried it with key on and AC off, no click. Key on with AC on, no click.
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 3:39 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Okay, the PCM is not grounding the control side.

Go to the pressure switch on the AC line and see if there is power in the connector.

Roy
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 3:42 PM
Tiny
YOUNGSNETWORK
  • MEMBER
  • 18 POSTS
Where is it?
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 3:47 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
On the dryer or the accumulator on the AC line. It is a three wire switch.

Roy
Was this
answer
helpful?
Yes
No
Thursday, May 23rd, 2019 AT 3:51 PM

Please login or register to post a reply.

Related Air Conditioner Not Working Content

Fix an Air Conditioning Not Working Video
VIDEO
Fix an Air Conditioning Not Working Video
Instructional repair video
Air Conditioner Not Working
GUIDE
Air Conditioner Not Working
Like any sub system in today's car a problem and be minor or a little more involved, this guide will help you find the problem and perform repairs. You can be the judge if...
VIEW MORE

Sponsored links