What size are the heater hoses? I'm thinking a 5/8 fitting into a ball valve on each hose.

 

You know I was wondering about this and do know my X has the valve. But I was wondering because on hot days the air coming threw the vents as quite a bit warmer than ambient temp.

 

motorcraft YG366. The cheapest price I found is amazon

 

There are others, but that's the one I put on years ago, and it's still playing a good tune.

I'd recommend it for longevity.

Pop

 

Thank you for that part number!

Drake

 

ranger valve.... $12

 

Thought it was a good time to resurrect this thread for those that need their a/c colder for the hot, brutal summer!

 

I just shut the valve on mine a couple of days ago. It made a big difference. I just used a single inline valve and close it manually. It takes about a minute to open the hood and flip it closed.

 

I bought a plumbing valve at Lowes for PEX tubing, and the OD of the fittings (integral with the valve) was just right for the Ford heater hose. I also open the valve a few times a summer with the engine running, to let fresh coolant circulate thru the heater core.

My AC center vent temp the other day was 43F, and it was 78F outside. From my testing, adding this shutoff valve didn't make a huge difference, but every bit helps.

 

I chose to install the Ranger valve and tap the vacuum line YEARS ago, and I notice a BIG difference!!

-Haven't seen the OP on in a while...anyone know him??

 

I've had the PEX ball valve in mine since 2004, but lately I've been thinking about a vacuum valve with a toggle valve in the dash so I have easier control over the water flow.

 

So, am I reading right that just one valve on the inlet line does the trick? Wouldn't this cause a backup and block flow? Which hose is the inlet hose? If it I am understanding right and it doesn't cause issues, I'll be doing this tomorrow.

 

Yes, I do. Neal's still around, just not as active here since he bought a forty-foot Class-A, and spends half his year in Mexico on the beach!

But we still correspond.

Good guy!

Pop

 

that flow is more like bypass so no problem blocking that flow.

 

Ah, makes sense. I am guessing the one closer to the driver's side is the inlet? I haven't looked at it real close yet. I guess I need to get my butt out there and pop the hood.