A/C leak
07-26-2005, 12:58 AM
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A/C leak
Have 92 Bonneville and the high side port is leaking slowly. You can tell from the little bubbles from compressor oil. It looks like some kind of ball valve or something. Is there some way to unstick this valve w/o loosing all the R-12. Thanks
07-26-2005, 01:00 AM
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Get a screw driver, stand out of the way and press and relaese the valve a couple times and see if that helps maybe?
07-26-2005, 01:22 AM
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No, don't do that.
Refrigerant, when mixed with A/C oil will bubble. That is normal. Spray some brake cleaner directly into the port for five seconds to clean out the oil and refrigerant, then blow the brake cleaner out with low pressure air (a straw and a mouth).
Then add three or four drops of houshold (sewing machine) oil to the port and watch for bubbles. If you see bubble, the port is leaking.
These ports do not commonly leak, the reason that you see bubbles when removing the cap is because the cap is a seal itself and traps refrigerant and oil in the port after any previous A/C servive.
Refrigerant, when mixed with A/C oil will bubble. That is normal. Spray some brake cleaner directly into the port for five seconds to clean out the oil and refrigerant, then blow the brake cleaner out with low pressure air (a straw and a mouth).
Then add three or four drops of houshold (sewing machine) oil to the port and watch for bubbles. If you see bubble, the port is leaking.
These ports do not commonly leak, the reason that you see bubbles when removing the cap is because the cap is a seal itself and traps refrigerant and oil in the port after any previous A/C servive.
07-26-2005, 05:36 AM
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Originally Posted by 1fatcat
No, don't do that.
Refrigerant, when mixed with A/C oil will bubble. That is normal. Spray some brake cleaner directly into the port for five seconds to clean out the oil and refrigerant, then blow the brake cleaner out with low pressure air (a straw and a mouth).
Then add three or four drops of houshold (sewing machine) oil to the port and watch for bubbles. If you see bubble, the port is leaking.
These ports do not commonly leak, the reason that you see bubbles when removing the cap is because the cap is a seal itself and traps refrigerant and oil in the port after any previous A/C servive.
Refrigerant, when mixed with A/C oil will bubble. That is normal. Spray some brake cleaner directly into the port for five seconds to clean out the oil and refrigerant, then blow the brake cleaner out with low pressure air (a straw and a mouth).
Then add three or four drops of houshold (sewing machine) oil to the port and watch for bubbles. If you see bubble, the port is leaking.
These ports do not commonly leak, the reason that you see bubbles when removing the cap is because the cap is a seal itself and traps refrigerant and oil in the port after any previous A/C servive.
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