A/C not very cold

2002 CHEVROLET SUBURBAN
25,000 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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PARKERSIX
  • MEMBER
  • 1 POST
Compressor failed. I replaced compressor, condenser, accumulator, orifice tube and seals, tensioner and belt.

Followed 2carpros method ov vacuum, leak test and recharge to spec for vehicle.

A/C blows cold until I turn on rear A/C then both front and rear blow cool air but not cold like when I run just the front.

I went to the rear of the vehicle when parked in idol with front A/C on. I felt low pressure line and it feels cold high pressure hot.

Don't know what to do next? Do I tear into the rear A/C now?
Jun 19, 2021 at 12:39 PM
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KASEKENNY
  • Experienced Mechanic
  • 18,907 POSTS
I suspect the issue is the Freon is low or you have a restriction in the system.

If the compressor failed then more then likely you had metal go through the system and that is causing the restriction in the system.

No matter what, we need to start with checking the pressures and that will tell us what the issue is.

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

Let us know what the high and low side of the system is and we can take the next steps.

Thanks
Jun 20, 2021 at 8:16 AM
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