After replacing A/C low side hose A/C intermittently cold

Tiny
JOHN BRYAN2
  • MEMBER
  • 2005 DODGE STRATUS
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
I had a leak and change the low side hose. Now the A/C will come on and run for a while then the air will start warming up. Sometimes it will go cold again and sometimes it won't. After a while after it has been turned off and back on it will run a while again and do the same thing.I checked the Freon and it's full. I put the gauge on it and while it's blowing cold the gauge is on blue and when it starts blowing warm the gauge goes to red and then back to blue and cold.
Monday, August 5th, 2019 AT 5:07 PM

6 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Good evening.

Did you replace the dryer? How long did you evacuate the system before charging it?

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

How much Freon did you add to the system?

Can you give me the high and low side readings of the pressures while the system is running?

Roy
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Monday, August 5th, 2019 AT 6:02 PM
Tiny
JOHN BRYAN2
  • MEMBER
  • 4 POSTS
My friend had all the gauges and he even went and bought the vacuum and he did the work we put in 2 cans of Freon. We checked for any leaks all over and didn't find anything, but he was going by YouTube instructions and it worked fine for about 2 or 3 weeks then it started turning cold to hot, hot to cold.
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Monday, August 5th, 2019 AT 6:30 PM
Tiny
JOHN BRYAN2
  • MEMBER
  • 4 POSTS
And I have made sure on and off the Freon is full.
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Monday, August 5th, 2019 AT 6:32 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
Okay, what were the gauge readings when you checked it?

I need the high and low side readings with the system running?

Roy
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+1
Monday, August 5th, 2019 AT 6:42 PM
Tiny
JOHN BRYAN2
  • MEMBER
  • 4 POSTS
I don't have the regular gauges, just the gauge on the Freon fill hose and it reads about 30-35 lbs.
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Thursday, August 8th, 2019 AT 5:27 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,796 POSTS
I need both pressures. You can rent a set at a parts store or you can buy a cheap pair at Harbor Freight.

Roy
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Thursday, August 8th, 2019 AT 5:35 AM

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