Follow Larger hose from a/c compressor--may be near firewall next to drier
I need a diagram on where is the low pressure valve on a 1999 expedition
Through the schrader valve on the low pressure side.
relieve the pressure off the high pressure side
schrader valve on fuel rail
Connect a Freon gauge and Freon can to the low pressure port. With the vehicle running and the ac on high, open the valve to let Freon in, stopping when the gauge shows full.
Freon is added through the low side pressure port. A gauge will be needed to check that the system is not overfilled. The Freon and gauge can be bought together as a kit.
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.
passenger side on the firewall underneath the black plastic wiring cover, aluminum cylinder and low pressure valve. takes lots of looking and if amateur then have a pro do it
The 1999 Ford Ranger low pressure air conditioning valve can be found on the air conditioning compressor. The low pressure valve will be labeled as the low pressure port.
wheres the bottom ac valve on a 1999 ford expidition
You don't add Freon as it has R134a not Freon. You add it to the low pressure side which is the larger hose.
The idle control valve on a1999 Ford Expedition is on the upper part of the engine by the throttle body and fuel injection.