Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to fix your car's air conditioner [title] Start the vehicle and turn on the air conditioner. [step] Use the key to start the car and turn the air conditioner on high. Feel the air coming out of the air conditioner and assess how warm, cool, or cold it is.

Ending1: Make adjustments according to how warm or cold your car is. [title] Turn the air conditioner on low. Ending2: [substeps] Try running the vehicle in the coolest area of your garage or under the hood for a few minutes. Let the air run into the changing tank before attempting to replace it. Ending3: If the air is warm to cool, but not cold as it should be, there may be an issue with air flow. [substeps] Check to see if the cooling fans on your radiator are running. Ending4: Turn the air conditioner's on low and make sure the air is coming out of the car properly. If there is a blanket on the floor, lay it on top of the blanket.

Answer format: ending1/ending2/ending3/ending4