on the v6, it is approx, 1 to 2 feet down below alternator at the firewall. most auto parts stores have extension hoses because it is very close to alternator. good-day !
In 2002 the Chevy Malibu had a large port 3100 engine producing around 180hp. This engine was used from 2000 to 2003 in this form.
if you are standing in front of the car it's on the left back fire wall
The 2003 Chevrolet Malibu OBD 2 port is on lower edge of dash left of steering column
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.
When standing in front of the car looking into the engine compartment go to the back left corner and look down to the fire wall. You should see the blue cap.
Low side service port is against the firewall just underneath the alternator. It has a Blue cap on it.
It is behind the alternator almost against the firewall.
the fuel pressure (key on engine off ) for a 2002 Malibu v6 is ==2000 and later is 52 to 59, have a good day!!
Follow lines from compressor-Larger line is low pressure--port may be at or around the accumulator/drier by passenger firewall
its in the back left corner should have a blue cap on it with an L
passengers side about a foot down between firewall and engine!! it has an "L" on the cap.
There is a web site www.idqusa.com that will tell you were the low side port is located on a 97 Malibu. Just click on the locate low side port. There is much more helpfull information about your vehicle ac system as well.