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Old 07-25-2017, 06:27 PM
bsr2002 bsr2002 is offline
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Re: A/C Question, Trailblazer 4.2

Quote:
Originally Posted by Schurkey View Post
Depends on HOW you're charging the system.

Are you just blowing a pounder can of refrigerant into the system because there's a slow leak you haven't bothered to fix?

Has the system been opened to fix a leak, vacuumed, and you're adding the "sticker capacity" of refrigerant?

Are you adding refrigerant based on duct temperature readings (i.e., adding until the duct temperature stops dropping, and then 1/4 lb. additional.)
I had the system evacuated so I could replace the compressor
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