why does the a/c on my car stop when accerolating
sounds like your loosing vacuum...if your not talking abouut the ac clutch...
If, when accelerating the airflow shifts from the dash vents to the defrost (windshield) vents you have a bad vacuum check valve. The check valve is in the vacuum line coming from the engine thru the firewall. You'll see it on the engine side of the firewall. Looks like this: HTH. -Jim
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