Hey guys, I got the DS/AC kit last week end and did the install in about 30-min. I checked the the AC prior to the install and in registerd at 50 degrees. After the AC Mod I drove the truck for about 15-min and it got down to 42. Not bad. I have the remote start on my truck so the next day I did just that. I remote started the truck and after about 8-10 min's went by, I got in the truck to leave and I noticed that the thermometer was still in the vent where I had left it the day before and it was reading 30 degrees. It was about 85 out side so it wasn't too hot either. But that's a heck of alot better than it was. It could also be to the fact that I had a switch installed in my Truck that makes the AC cycle (ON) quicker too. I had an AC tech install this for me and it works great too. That could be why my truck got so cold .Take Care , Country.
On the issue of a manual valve with a cable. That is how the temp was regulated on older cars and trucks that had a lever on the heater to control temperature. I have a 54 F250 with the old manual valve that operates off of a cable. That system would work. You would just have to use an after market choke cable or hand throttle and mount it somewhere inside the cab and run it to the manual valve if you wanted to be able to contol the water flow to the heater core. The valve on the old 54 just moves back and forth over about a 90 degree arc between off and on.
Couldn't tell yah. I just did the straight up install according to the directions. It installs using then white Vac Hose..And it works only in the Max AC setting. The system works normaly after that. I like it this way myself..Take Care.Country
I agree with countrycar. The white hose is the best one to use. You will still have all the other selections working normally with only the Max AC having the water shut off.
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2002 F350 7.3 Ltr. 6sp.DRW 170K miles, 13' service body W/2200 # Venco hoist, Air compressor,10KW welder/generator, Air Horns, ceiling mtd CB W/250W Amp, Exhaust brake, Aux. Idle Control and Vac. operated hot water control.
1952 F1 flathead Project Truck
(It's got eight cylinders and I use them all )
Quick question.......a little off topic but not that far off
Is there any harm done when one leaves the A/C switch in the on position after shutting down the truck?
For example: say you are driving to work with your A/C set to max, then you get to work and shut down for the rest of the day but leave the settings as they were when driving (max A/C, high fan). At the end of the day you get into your truck and fire it up while the A/C settings are at max/high fan.
Does this practice harm anything??? Compressor clutch??? Fan blower? Many years back i remember Dad always made sure to set everything off before shutting down his cars. During the hot summer months here i usually leave everything on max and dont bother setting it off before i shut down my truck, i figured the less i turn those knobs the less wear on them.
what are your thoughts???
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2000 crew cab, 4x4, short bed. Only mods so far - 6637, ccv, zoodad, intank mods with pre fuel filter, hpx crossover line.
I'm not an AC tech so I won't even attempt to try to answer this one for yah. I also leave the controls in the on position in antisipation of what the weather is going to be like. Especially if the truck is going to sit for awhile or over night. I have the remote start so it makes it convenient. Creature comforts are great.LOL Take Care..Country
I would use the white hose. You've got the Max setting for some cold AC, but you know for sure that the rest of the system will function as normal. --jtharvey
JT, I think you missed the original point...a way to allow the AC to provide cooler air, while also allowing the vent mode to actually provide air at the outside ambient temperature...instead of the pre-warmed version that stock mode provides.
I be making this change this weekend. This time of year in the Hill Country north of San Antone, it's cool enough outside during early to late evenings to run with the windows down (love to hear that whistling exhaust), but the 3 females in the house complain of blowing hair...and the vent mode supplies air that is too warm, so on goes the AC...but with diesel prices the way they are, I'd rather run the vent. So, it's the red-line mod for me. I'd rather not have to wait for 100 degree outside temps to hit before vent mode finally feels cool.
But, that's why Baskin-Robbins has 33 flavors...and I suppose that's also why those butt-ugly new Chevrolets are hitting the streets...to each their own.
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Tom
'00 CC F250 4x4 Auto 4" Magnaflow, S&B Cold Air Intake, AIH, Edge A2/Juice, HPX, Pre-pump, In-Tank, CCK, 203 Thermostat, Air Horns, XM Satellite Radio, 2" lift, 315's, Trucool 4739, '06 Grill and emblem upgrades, RealTree skins and a hot babe in the passenger seat!
As shown in the pic on my post #97 on this thread, all I did was insert a shut off valve in the top hose. Now, it seems that the A/C compressor never cycles off no matter how cold it gets. Is it possible that the A/C compressor always ran all the time before, and the knob to control temp (cw for hot & ccw for cold) was actually controlling the supply of hot water to make the exit air hotter or colder???
As shown in the pic on my post #97 on this thread, all I did was insert a shut off valve in the top hose. Now, it seems that the A/C compressor never cycles off no matter how cold it gets. Is it possible that the A/C compressor always ran all the time before, and the knob to control temp (cw for hot & ccw for cold) was actually controlling the supply of hot water to make the exit air hotter or colder???
You are correct Ernest...the dumbest air-conditioning system ever invented . That is why when you do any of these mods that completely shut-off the flow of hot water to the heater core, you lose control of the temperature of the air conditioner and it runs cold...real cold. The only control of temp that is left is the fan...Makes me think that a thermostat could be installed inside the cab and with a little wiring the compressor could be engaged/disengaged via the thermostat. This would be after someone installed a shutoff valve in the truck. I wonder if the new trucks use this same air conditioning control (or better, lack of control) as the earlier models?
You are correct Ernest...the dumbest air-conditioning system ever invented . That is why when you do any of these mods that completely shut-off the flow of hot water to the heater core, you lose control of the temperature of the air conditioner and it runs cold...real cold. The only control of temp that is left is the fan...Makes me think that a thermostat could be installed inside the cab and with a little wiring the compressor could be engaged/disengaged via the thermostat. This would be after someone installed a shutoff valve in the truck. I wonder if the new trucks use this same air conditioning control (or better, lack of control) as the earlier models?
Well, that explains another mystery. I had about a 200 mile round trip to Wash DC yesterday to get an emergency implant on a front tooth #7 which I broke off when crawling around under my truck, and I raised my face up and smacked my teeth on a cross member. For a lot of the trip it was cool enough to just use the vent for outside air, but after we got to town I switched to MAX A/C to shut off the outside air due to all the traffic fumes, and that's when I noticed that no matter how I adjusted the knob the A/C wouldn't shut off.
My 2000 Ranger worked that way in Max -- it had the vacuum valve that shut off the flow of hot coolant to the core and Max was just that -- **FRIGGIN' MAX**. When I put a thermometer in the output vent, I was seeing 35*. If you wanted to adjust the temp, you had to go to one of the other settings...
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.Take Care , Country.
Country
Couldn't tell yah. I just did the straight up install according to the directions. It installs using then white Vac Hose..And it works only in the Max AC setting. The system works normaly after that. I like it this way myself..Take Care.Country
Take Care..Country
the way they are, I'd rather run the vent. So, it's the red-line mod for me. I'd rather not have to wait for 100 degree outside temps to hit before vent mode finally feels cool. 
. That is why when you do any of these mods that completely shut-off the flow of hot water to the heater core, you lose control of the temperature of the air conditioner and it runs cold...real cold. The only control of temp that is left is the fan...Makes me think that a thermostat could be installed inside the cab and with a little wiring the compressor could be engaged/disengaged via the thermostat. This would be after someone installed a shutoff valve in the truck. I wonder if the new trucks use this same air conditioning control (or better, lack of control) as the earlier models?
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