you need to evacuate the system and replace ALL the refrigerant. It's a temporary fix to just add a can at random and may do more harm than good. If you're not low, but the refrigerant is old, you could blow the head off the compressor by just randomly adding more freon. I would also suggest using one can of freon with a leak detector so that you don't put good freon after bad. If you have a leak, put a can a week isn't going to help anything until you fix the leak.
What is the problem when my 2011 crown Victorian blows hot air when I turn the ac on
2011 Ford Crown Victoria Police Interceptor
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Maintenance & Repair
I drove through some high water and my air conditioner isn't working
2008 Ford Crown Victoria Police Interceptor
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Maintenance & Repair
air bag flashes 2 times pauses then 1 time which is code 21, how do I repair this
2003 Ford Crown Victoria LX
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Maintenance & Repair
Ford Crown Victoria
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Maintenance & Repair
Air conditioning only runs while relay is bypassed
2008 Ford Crown Victoria Police Interceptor
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Maintenance & Repair
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