A/C problem

Tiny
AZEE13
  • MEMBER
  • 10 POSTS
  • 2004 HONDA CIVIC
  • 4 CYL
  • 2WD
  • MANUAL
  • 56,000 MILES
My Air conditioning system feels cool but not up to it capacity, when I open the bonnet and start the AC I can see and feel it starts and stop. This happend continuesly.

I also checked with a AC tester, when the AC is on on the Lower side goes up to 60 and higher side come up to 50and stays on

can anyone help me pls?
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Saturday, June 20th, 2020 AT 11:05 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
It would more likely be a fuse problem since so many items failed at the same time.

Check the underhood fuses.
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Saturday, June 20th, 2020 AT 11:05 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi azee13,

Are you sure the high side is reading 50 psi?
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Saturday, June 20th, 2020 AT 11:05 AM (Merged)
Tiny
BSCOTT157
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  • 14 POSTS
All those fuses are good as I stated in the original question. Are there any more fuses anywhere in the vehicle that could be causing this? Could it be a relay?
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Saturday, June 20th, 2020 AT 11:05 AM (Merged)
Tiny
AZEE13
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  • 10 POSTS
Yes, Then I got the gas refilled. It seems like cooling but the start n stop problem is still there, some sort of motor trying to start then last for about few seconds then stops ans re-try again. When is happen I feel the whole car is vibrating.

Guys u r wondeful, keep up the good works and i'll soon donate after my pay day. Thank u ever so much
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Saturday, June 20th, 2020 AT 11:05 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Here are the schematics for the AC. Check through them for fuses and relay. Here is a guide to help you test the relay and wiring diagrams to help you see how the system works.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (Below). Please let us know what you find.

Cheers
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Saturday, June 20th, 2020 AT 11:05 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
The high side should be operating at between 180 to 250 and I am surprised it is showing 50.

The low side should be around 30.

When compressor has been stopped for a while, both readings should read at abut 90. Please recheck the pressure reading.
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Saturday, June 20th, 2020 AT 11:05 AM (Merged)
Tiny
AZEE13
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  • 10 POSTS
Thanks Guys, I've got it sorted, Gas re-filled and now its working fine. Cheers
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Saturday, June 20th, 2020 AT 11:06 AM (Merged)
Tiny
DENTALFITCHIC
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  • 0 POST
Thank you so much it was the blower motor relay on my car :)
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Saturday, June 20th, 2020 AT 11:06 AM (Merged)
Tiny
KHLOW2008
  • MECHANIC
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You're welcome and glad to know you have fixed the problem.

By the way if the gas level was low, you should monitor the situation aa there could possibly be a leak somewhere and problem would recur.
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Saturday, June 20th, 2020 AT 11:06 AM (Merged)
Tiny
AZEE13
  • MEMBER
  • 10 POSTS
Yes, I've got dyed and detected using a ultra violet torch, leakes fixed.

You r great guys, its really good to have some one to turn to when we have problem like this. Keep up the good work. God bless. Thank u
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Saturday, June 20th, 2020 AT 11:06 AM (Merged)

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