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How do you add freon to a 1999 Honda Passport
You don't add Freon as it has R134a not Freon. You add it to the low pressure side which is the larger hose.
Under the hood, driver side, near the base of the windshield.
You take the cap off of the master cylinder and pour it in.
R134a
To the overflow tank and if the radiator has a cap,you will need to fill it with the engine cold.
You can add Freon to your 1999 Chevy cooling system through the low pressure port. Connect your Freon bottle to the low pressure port and release the Freon into the system.
The 1999 Oldsmobile Alero does not have Freon in the A/C system. It contains R134 and not Freon which is R12. As I am sure you do not have the proper equipment to recharge the system plus the fact it is illegal to add refrigerant to a system with a leak, until the leak is repaired, take it to a professional and have the leak repaired. You have a leak or you would not need to add refrigerant.
Through the schrader valve on the low pressure side.
You can add Freon to your 1999 Chevrolet S 10 pickup truck cooling system, through the air conditioning compressor ports. The ports are located on the top of the compressor. You would add r134 refrigerant through the low pressure port located on the accumulator/dryer.
Find the low side ac port on the 1999 DeVille and connect an ac gauge and freon tank. Start the engine, turn the ac on high, and open the freon valve. Let the freon flow until the gauge reads full.
In the transmission dipstick tube, while the engine is running. Use a funnel that's not going to flip over when it gets full.