Cold A/C
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Freshman User
Joined: Apr 2008
Posts: 48
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From: Johnston Co. in NC
Cold A/C
Sorry if this subject has been covered, but I did a search on Cold A/C and found no info. Can someone please explain the what, why, when, where, and how for this mod
Thanks!
Thanks!
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
Have a look here:
http://www.dieselsite.com/index.asp?...S&Category=578
I put in one of Bob's kits 2 years ago, and it keeps the A/C nice & icy cold...
http://www.dieselsite.com/index.asp?...S&Category=578
I put in one of Bob's kits 2 years ago, and it keeps the A/C nice & icy cold...
Elder User
Joined: May 2008
Posts: 675
Likes: 9
Have a look here:
http://www.dieselsite.com/index.asp?...S&Category=578
I put in one of Bob's kits 2 years ago, and it keeps the A/C nice & icy cold...
http://www.dieselsite.com/index.asp?...S&Category=578
I put in one of Bob's kits 2 years ago, and it keeps the A/C nice & icy cold...
1. the coolant from water pump hose in the engine comes directly off the water pump right?
2. it looks like the valve has a flow arrow, does this matter?
3. there are two sets of vacuum lines under the passenger footwell, do I want the set closest to the passenger, or the one near the firewall?
4. do I need to worry about heat for the valve, or only the vacuum line melting?
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
2. it looks like the valve has a flow arrow, does this matter?
3. there are two sets of vacuum lines under the passenger footwell, do I want the set closest to the passenger, or the one near the firewall?
4. do I need to worry about heat for the valve, or only the vacuum line melting?
Hope this helps! BTW, I put in the older one. Looks like he has a new one that gives you a little more control. This is the one I put in:
http://www.dieselsite.com/index.asp?...PROD&ProdID=21
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Freshman User
Joined: Apr 2008
Posts: 48
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From: Johnston Co. in NC
Water Pump Damage
My 1979 F150 has a 460 in it and I use to pop heater cores all the time until I change the flow path from the water pump. So I guess my question is that if I install this will it damage my water pump or heater core (i.e. to much back pressure). I have an EX with a V-10 and a F250 PSD that I wanted to install this on. Thanks!
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
No issues that I'm aware of with bypassing the heater core. My 2000 Ranger did this from the factory. Check your Ex, because it might have one in it already -- I have heard that some do. That in itself tells me that it shouldn't be a problem, and like I said, mine has been installed for about two years now -- no issues.
Posting Guru
Joined: Mar 2008
Posts: 1,734
Likes: 1
From: Monroe VA
I have this mod and I used the shutoff valve from a expedition. Got it from the parts store for like $10 I think and had the vacuum line. I teed it into the red line but switched it as soon as it got cold here.
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Posting Guru
Joined: Dec 2007
Posts: 2,290
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From: SEMO
I used a water shut off valve for a 1995 ranger to do the mod and picked up the vac.hose all from NAPA,for around 35$ IIRC.
This is the valve I put in.I just cut the hoses and kept them in lined with each other.
I put the tee into the white line under the glove box and ran the new vac. hose out through a rubber plug in the fire wall in the right front on the pass side above the carpet.You can run the line and keep it off the exhaust with no probs.
The White line closes the valve when you turn to MAX a/c only,shutting off the hot water going to the heater core.This why it cools better because the A/C is not thrying to cool the heater core off and you get all the cool air on a hot day.
EDIT: the short black vac lines on the TEE is because the ford vac line was to small for the TEE.So I used two small pieces of vac line I had to make adapters to make it work.
This is the valve I put in.I just cut the hoses and kept them in lined with each other.
I put the tee into the white line under the glove box and ran the new vac. hose out through a rubber plug in the fire wall in the right front on the pass side above the carpet.You can run the line and keep it off the exhaust with no probs.
The White line closes the valve when you turn to MAX a/c only,shutting off the hot water going to the heater core.This why it cools better because the A/C is not thrying to cool the heater core off and you get all the cool air on a hot day.
EDIT: the short black vac lines on the TEE is because the ford vac line was to small for the TEE.So I used two small pieces of vac line I had to make adapters to make it work.
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From: Memphis
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Joined: Nov 2006
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From: Fallon,NV & Bainbridge OH
I too did as Brad except I typically don't buy from NAPA unless I have to and I did not get my valve there. The difference is I tied into the red line so I get cooler air out of the vent (dash) setting because there are plenty of days here that AC is not needed but the cool fresh air is nice. In the winter I pull the line at the "T" and cap it with a plug I keep in the glove box so I can get heated air from the vent setting. I have an electric controlled vacuum switch but have been to lazy to install it.
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From: SEMO
