to the low side
where do I add freon to my air conditioning unit on a 1997 chevy truck?
no
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.
Freon is a very touchy thing to work with. The EPA bans its release into the atmosphere, so only experts and professionals know how to add and subtract Freon from the car safely. Take your car to a mechanic or a Chevy dealer for this.
There is a fill hole on the top of the transmission.
The schrader valve on the low pressure side of the system.
This is what I did for my Chevy prism 2000, it works fine: http://www.id-usa.com/how_to_recharging.asp
There is an oil cap on top of the engine recessed into the plastic engine cover. It is very visible and even says "oil 5w-30" on it for ya.
The 2000 Chevrolet Silverado truck has two ports on top of the air conditioner compressor. You will add Freon through the low pressure port.
Buy a kit at Wal-mART OR AUTO PARTS COMES WITH INSTRUCTIONS
The 1998 Chevy did not come with Freon (R12) installed. Freon was banned beginning in 1996. It contains R-134. You have a leak that needs repairing before adding more refrigerant. It is illegal to add refrigerant to a system with a leak. Seek out professional help to repair the leak.The 1998 Chevy did not come with Freon (R12) installed. Freon was banned beginning in 1996. It contains R-134. You have a leak that needs repairing before adding more refrigerant. It is illegal to add refrigerant to a system with a leak. Seek out professional help to repair the leak.
You always add freon using a set of gauges and you would use the low side (blue knob), if you are not using gauges then still use the low side service port but make sure that its a freon problem first...........