Found my coolant leak.

What ID size hose is this on the right?




This is the actual hose on my car



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That's not a coolant line, that's an A/C line.

Judging by the location: 80315-S5A-013 is the part number of what you're looking for.

 

Whoa, so it's not going to be as easy as I thought..

Any guides on changing this AC line? Haven't done one before, and I'm not seeing much info on it.

 

Well, only one bolt holds the fitting on the A/C pump, and only one bolt holds it to the Condenser. So, it's rather easy to remove/install, as long as you can get to the bolts.

 

In theory easy. I'm not aware how the AC system works, but the AC uses coolant, as well as a refrigerant? This hose is leaking coolant I'm thinking, and I'm filling my overflow res every week

 

I am kinda like toy, if that hose is leaking coolant and refrigerant, not sure anybody here will be of much help. Keep us informed......

 

That hose cannot leak coolant. Its an entirely isolated system that is pressurized far greater (roughly 200psi) than your engine's coolant system (roughly 15psi). There's really no way for the two systems to ever make contact.

As for your coolant loss, you may have a blown headgasket. Are you filling your overflow bottle to the top? Because it really shouldn't have too much coolant in it (hence the name "overflow").

 

Long story short, I left the AC line the way it is. I don't seem to have a coolant leak I guess. I changed my coolant awhile ago, and I think the system is still just burping itself out or something.

That or the spring temps sealed up whatever leak I had.

I filled the overflow res to the min mark, and I'm just driving it monitoring levels.

 

Yeah, the one in the picture is an AC hose. It contains refrigerant. Specifically R134a. It does not contain coolant. I'd fix that soon because then you'll have no AC if it bursts.