Automotive Air Conditioning Information Forum (Archives)

GM Tech on Wed June 20, 2012 3:11 PM

Year: 1997
Make: Buick
Model: LeSabre
Ambient Temp: 90
Pressure Low: 55
Pressure High: 280

I Just recovered the refrigerant- a whopping 5 pounds in a 2 pound system--- sometimes you win-- I needed that extra refrigerant- was getting low.....

Gotta wonder what the last guy was doing......

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The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......

chris142 on Wed June 20, 2012 10:43 PM

How much sealer did you suck into your machine? I had a guy call once. Said he put 7 cans in his Jag and it still wasn't cold.

GM Tech on Wed June 20, 2012 10:53 PM

My all time record is 11 pounds in a corvette--owner said it just kept cycling- wanted it to stop-- ends up it had a loose wire at compressor causing the "cycling" He was a lawyer.... enough said....

My record on oil recovery is 48 ounces in a C/K truck! That was when service compressor came with a full oil charge and this dealership never did oil balancing...

-------------------------
The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......