Q: Took the air filter housing out to get to the low pressure port car stalls now on 2010 Buick LaCrosse

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Took out filter housing to get to the low pressure port. when I crank the car to start recharge car will not turn over
(1) Answer
Typically, machines to add refrigerant are used to refill air conditioning systems in a shop environment. This would not require the vehicle to run. I'm not sure what to suggest for doing it yourself.