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A/C Not Blowing Cold Air?

Tiny
FJLAMBES
  • MEMBER
  • 2014 NISSAN ALTIMA
  • 2.5L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
A/c doesn't blow cold, low side pressure is at 45. High side pressure stays around 85-90 at about 80 degrees ambient. Would seem to be a weak compressor, but the cooling fans go to hi blow about 15 seconds after the compressor engages. A/C blows cold inside car for about 10 seconds, then goes warm. I'm not sure what to look for blockage or how would I diagnose for that?
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Friday, September 9th, 2022 AT 4:25 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,883 POSTS
There is no blockage, the compressor is going out here is a guide and video to help you change it out with instructions in the images below to help you with your car. Here is a generic guide to help you see the steps. It looks like for your car you will need to remove the fender liner and reposition some power steering lines, not too bad.

https://www.2carpros.com/articles/replace-air-conditioner-compressor

This video will show you how to vacuum down and charge the system:

https://youtu.be/4EqdrBVb0sY

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem.
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Saturday, September 10th, 2022 AT 11:34 AM

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