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A/C is not blowing cold air?

Tiny
TONY02
  • MEMBER
  • 2008 DODGE RAM
  • 250,000 MILES
I have the truck listed above 1500 v8 4.7L with approximately 250,000 miles on it. The A/C went out on it so I decided to just re do the whole system the compressor, condenser, evaporator, accumulator, and the orifice tube line. I pulled a vacuum on it; it held very good no leaks I recharged it to its factory charge, but the A/C isn’t blowing cold it’s blowing around 70°F I would like to get it colder. Any help?
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Sunday, August 6th, 2023 AT 2:42 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,959 POSTS
Can you tell me what the high and low side pressure are? Please go over this video and guide:

https://youtu.be/4EqdrBVb0sY

and

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

Please go over these guides and get back to us.
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Monday, August 7th, 2023 AT 12:37 PM
Tiny
TONY02
  • MEMBER
  • 63 POSTS
The low side was around 40 PSI, and the high side was around 250 PSI.
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Tuesday, August 8th, 2023 AT 12:05 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,959 POSTS
Perfect, isn't the return line at the firewall to the compressor cold? If so, then the problem is the temperature blend door actuator is not working correctly. Here is the location so I can help you check it out. Check out the images (below). Please let us know what happens.
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Thursday, August 10th, 2023 AT 9:43 AM

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