To the fuel tank
The EVAP Service port is on the firewall on the passenger side, right next to the low side service port for the A/C.
The 2002 Chevy Cavalier low side service port can be found on the top of the air conditioner compressor. The low side service port will be labeled as the low pressure port.
An EVAP system is the system in the car that retrieves fuel vapors from the gas tank, as well as the rest of the fuel system. The EVAP system will then recycle these vapors so they can be burned in the engine. The EVAP port is a test port where a vacuum can be attached to check for leaks in the EVAP system.
The AC low side service port on a 1999 Chevy Astro van is located next to the firewall. It is the port that is closest to the evaporator.
check engine light
The recharge port is on the larger AC pipe
On the accumulator.
The 2001 Chevrolet Impala low side service port can be found on the top of the air conditioner compressor. The port will be labeled as the low pressure port.
Low side service port is against the firewall just underneath the alternator. It has a Blue cap on it.
Most SBC have a port next to the distributor.
on the back of the throttle body or intake port.
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.