First off, my car is a 2000 Civic and the a/c isn't running cold anymore So I bought one of those R-134a Refrigerant cans to recharge my a/c. It says to pump it into the low-pressure port of the a/c... which pipe is that?! I see 2 pipes with blue caps when I pop the hood. Right in front of the engine above the a/c. Are those the ports? One that has a "L" on the cap and the other has a "H" on it. The "H" pipe is the closer one to you if you're standing in front of the car. Which pipe is it? HELP?!

 

L is for Low pressure. Least what I was told. Wait for another opinion.

 

I would guess L for Low and H for High.

I dont know i dont have A/C

free bump.

 

Thanks for the input guys. Anyone else that can help a poor guy out?

 

Can anyone comfirm that the "L" cap is the low-pressure port for the a/c?

 

Dude are you serious?

Yes the Cap with the L stamped on it is the low side of the system. I'm curious though, does your refill kit come with a gauge? if it does watch it closely and try not to get any refrigerant on yourself.

Sorry about the doublepost