A/C is not cold when idle

Tiny
BAKHTIAR DUSKY
  • MEMBER
  • 96 POSTS
Oh, thanks. Can I just discharge it a little bit? The low side?
Btw the car was idle and A/C was on.
Was this
answer
helpful?
Yes
No
Wednesday, August 14th, 2019 AT 9:29 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
No, the valve is stuck open too far. It will not lower the pressure by bleeding it out.

You need to replace it.

Roy
Was this
answer
helpful?
Yes
No
Wednesday, August 14th, 2019 AT 9:32 AM
Tiny
BAKHTIAR DUSKY
  • MEMBER
  • 96 POSTS
Oh I see, but replace what?
Was this
answer
helpful?
Yes
No
Wednesday, August 14th, 2019 AT 9:38 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Expansion valve.

Roy
Was this
answer
helpful?
Yes
No
Wednesday, August 14th, 2019 AT 9:41 AM
Tiny
BAKHTIAR DUSKY
  • MEMBER
  • 96 POSTS
So from what I understand the problem is not because the low side has high pressure but the expansion valve is not working probably right?
Was this
answer
helpful?
Yes
No
Wednesday, August 14th, 2019 AT 9:48 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
The high side pressure is too high and the reason is that the expansion valve is bad. After you replace the expansion valve and dryer, evacuate the system and charge it, the pressure should be 25-30 lbs.

Roy
Was this
answer
helpful?
Yes
No
Wednesday, August 14th, 2019 AT 12:18 PM
Tiny
BAKHTIAR DUSKY
  • MEMBER
  • 96 POSTS
Well, I guess I have to take it to a mechanic then.
Was this
answer
helpful?
Yes
No
Wednesday, August 14th, 2019 AT 3:06 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Okay, keep me updated.

Roy
Was this
answer
helpful?
Yes
No
Wednesday, August 14th, 2019 AT 3:13 PM
Tiny
BAKHTIAR DUSKY
  • MEMBER
  • 96 POSTS
Sorry for delay. I have the found the problem; it is the high pressure pipe is leaking again. I just replaced last year. I mean is there is something else could do that? Thanks
Was this
answer
helpful?
Yes
No
Friday, October 11th, 2019 AT 5:20 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
As I stated previously, the expansion valve was your issue based on pressures.

Roy
Was this
answer
helpful?
Yes
No
Friday, October 11th, 2019 AT 6:20 AM
Tiny
BAKHTIAR DUSKY
  • MEMBER
  • 96 POSTS
So first I need to replace expansion valve then replace the high pressure pipe right?
Was this
answer
helpful?
Yes
No
Friday, October 11th, 2019 AT 10:03 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
I would replace both at the same time.

Roy
Was this
answer
helpful?
Yes
No
Friday, October 11th, 2019 AT 10:41 AM
Tiny
BAKHTIAR DUSKY
  • MEMBER
  • 96 POSTS
Oh okay, and is that expansion valve picture? That is under dashboard right?
Was this
answer
helpful?
Yes
No
Friday, October 11th, 2019 AT 11:33 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
No, under the hood by the firewall.

Roy
Was this
answer
helpful?
Yes
No
Friday, October 11th, 2019 AT 11:55 AM
Tiny
BAKHTIAR DUSKY
  • MEMBER
  • 96 POSTS
Checked by the mechanic he said the the compressor is weak no need to check the expansion and the low pressure was 35 psi.
Was this
answer
helpful?
Yes
No
Saturday, October 12th, 2019 AT 1:44 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
I. Disagree.

Hope it works out for you.

Roy
Was this
answer
helpful?
Yes
No
Saturday, October 12th, 2019 AT 4:58 AM
Tiny
BAKHTIAR DUSKY
  • MEMBER
  • 96 POSTS
Well yea, I told him leave it I don't want to change the compressor.
Was this
answer
helpful?
Yes
No
Saturday, October 12th, 2019 AT 12:11 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
That I agree with.

Roy
Was this
answer
helpful?
Yes
No
Saturday, October 12th, 2019 AT 12:23 PM
Tiny
BAKHTIAR DUSKY
  • MEMBER
  • 96 POSTS
Thanks for the help and all the information bro.
Just for info the low pressure was 35 psi.
Was this
answer
helpful?
Yes
No
Saturday, October 12th, 2019 AT 12:24 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
When did it change and why?

Roy
Was this
answer
helpful?
Yes
No
Saturday, October 12th, 2019 AT 12:34 PM

Please login or register to post a reply.

Sponsored links