Looks like one here
http://www.dieselsite.com/maxacassis...4-200373l.aspx

 

Thanks guys for all the info some good stuff here

 

Yep. That's the one. I shouldve said I wish I knew the part make and number. I can't help but think it's probably a good bit cheaper as just the valve.

 

It's indifferent. Blocking off one line or the other makes no difference as long as the flow of hot liquid is stopped . I hooked the vacuum line on mine off the max ac so that it only shuts off when I switch it to max. Regular AC keeps the coolant flowing.

Ouch. The part I linked is $19.46 at Rock Auto. You can save another 5% until 6/24/12 with this coupon code 92727615509066

RockAuto Parts Catalog

If you want to shop around, just look for a heater control valve for a 00 and up excursion or any of the super duty trucks that came with a 6.0.

 

The only positive thing about the one above is that if theres a leak at the actuator you pull in air. If the operator armature seal leaks then you leak coolant at the valve stem interface with the valve.

The closed units diaphragm is intergrated with the system so if there is a leak in the diaphragm you pull in coolant into you vacuum system with that one. Thats the reason for the price difference.

 

quote=DRRXR;11891453]The only positive thing about the one above is that if theres a leak at the actuator you pull in air. If the operator armature seal leaks then you leak coolant at the valve stem interface with the valve.

The closed units diaphragm is intergrated with the system so if there is a leak in the diaphragm you pull in coolant into you vacuum system with that one. Thats the reason for the price difference.[/quote]

I went shopping on the internet before I read this post, I found the YG275 MOTORCRAFT at AMAZON for 7.95 with free shipping if you spent over $25 so I bought 2 and something else. Now I'm concerned that I could have a problem with coolant being sucked into the vacuum system should the valve fail. Any comments are welcome.

 

I went shopping on the internet before I read this post, I found the YG275 MOTORCRAFT at AMAZON for 7.95 with free shipping if you spent over $25 so I bought 2 and something else. Now I'm concerned that I could have a problem with coolant being sucked into the vacuum system should the valve fail. Any comments are welcome.[/quote]

I dont know that I would be too concerned with the leak potential.
They have been used for sometime on vehicles. My only concern would be long tern degeneration of the VP with a leak. Material compatability issues. I have only seen one leak and it was on a Caddy.

 

I wouldn't be too worried. The Rangers and Excursions have been running this way for years, along with most folks who have done the cold AC mod. I don't remember every reading of one of them failing and filling the vacuum line with coolant.

 

I think I found the one I want. It installs in one hose and doesn't look to be able to leak coolant really anywhere a leaky hose couldn't. A parts interchange shows it to have been used since the 70s in a LOT of vehicles including E series 7.3L's.

Motorcraft YG136

 

Nothing wrong with that one Jacob

Good find. Looks to be made oout of a different metal alloy than the higher dollar one, but that should not matter.

Reps to you

 

Yes good find. I belive i will be ordering that one too.

 

I installed the Max A/C modification yesterday. It took maybe 20 minutes maximum. All I can say is that my F-150 had cold air before but now this thing is like an arctic blast. IMO it was well worth the price.

This truck is really coming along:


1994 Ford F-150 AFTER - a set on Flickr

1994 Ford F-150 Before - a set on Flickr

 

Thats a good looking truck you got there. Which one did you install? I ordered the one redman84 posted yesterday.

 

I installed this one:

http://www.dieselsite.com/maxacassis...4-200373l.aspx

 

Stainless:

The one you ordered looks identical. It appears that I paid an extra $30 for 18 inches of hose, two hose clamps, and a T-valve. Boy, did I get hosed!