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.
30 degrees? Man thats cold, cold enough to freeze water in fact. You may want to keep an eye on that. The evaporator coil's job is to remove heat and humidity from the air passing through it. The humidity condensates on the coil and drains off. (thats that puddle of water you see under your truck when the ac is on). With temps that cold, you run the risk of freezing the coil.
I just picked up the heater control valve from AutoZone. Are the fittings on the valve smaller than the heater hose inside diameter. It may be my eyes.
[
QUOTE=Izzy351]So my '02 already has the cut-off valve when Max AC is selected. When you go to any other setting, it opens the valve, so there's no issue of coolant sitting in the core for 8-9 months unless you never take the selector switch off Max AC (assuming the valve closes completely, of course). So far, no complaints about my AC (on Max) either. However, I read somewhere htat the stock valve doesn't close it off completely -- is that true??[/quote]
Last edited by schwengler; 05-18-2007 at 09:42 PM.
Yeah I will Thanks. It's only happend once. But I did notice that when my truck sits idling it does get very cold. While I'm in transit it drops to 38-40 degrees. I'll take this all day. It doesn't get too warm here in S.Ca but maybe acouple of weeks in July and It always cools down in the evening. Thats is one good thing about living in CA, and uuhhh, well uuuuhhhh HHMMM, NOP really can't think of anything else. Take Care all......
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.
Indeed I did miss the point. I see what you're after now. Red line should accomplish that. I think it will also cut off heat to the defrost setting as well though - something that I personally needed to not have happen. If only there were a way to conveniently shut off the heater core on any of the left side settings.
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Jeremy See My Webshots for pics.
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?
So if your system is not OFF, then the AC compressor is running??? UMMMM, doesn't that help to kill fuel efficiency AND create excess wear on the compressor???
If that's true, then here's MY IDEAL AC mod:
1. Install the Ranger valve to kill the flow of hot water to the heater core in ANY setting to the left of OFF
2. Devise a way to control vacuum to the Ranger valve (i.e. be able to "disable" the mod done in #1)
3. A switch to engage/disengage the AC compressor.
I may work on #2 tomorrow, but would welcome any thoughts on ways to make it happen.
__________________ Brendan
1999 F250 CC SB 4x4 7.3 PSD named "Nyx"
BTS VB;6637;A-pillar (pyro, boost, trans temp);XM radio;Alpine CDA-9831 w/RCA inputs;Leveling kit;Adrenaline HPOP;UnderCover tonneau cover;05 headlights
So if your system is not OFF, then the AC compressor is running??? UMMMM, doesn't that help to kill fuel efficiency AND create excess wear on the compressor???.
But evidently that's the way Ford designed it, at least with my manual shut-off valve the AC compressor is running for a better reason, to cool the cab, and not just to cool the hot water from the engine!
Quote:
Originally Posted by papadelogan
...3. A switch to engage/disengage the AC compressor. ???.
My concern here is that since Ford designed it NOT TO CYCLE making it do so every minute or so will probably wear it out in short order?
But evidently that's the way Ford designed it, at least with my manual shut-off valve the AC compressor is running for a better reason, to cool the cab, and not just to cool the hot water from the engine!
My concern here is that since Ford designed it NOT TO CYCLE making it do so every minute or so will probably wear it out in short order?
That is the way they designed it, so here is my suggestion. We need to find the manufacturer of the compressor and see if they have a maximum number of cycles per hour (or some such duty cycle maximum/minimum). If we find that it can be cycled, then we find a thermostat to install in the cab to control the circuit to the compressor. Definite money to be made here! I'm off to do a class today, but tomorrow I am starting the search.
Referring to UCANS question, I always select vent and run the fan on high for about 30 seconds to dry off the evaporator before i get out of the truck to keep mildew from growing on it and keep the funky smell away. Any thoughts on doing this guys? Also the owners manual says leaving it on vent will help the truck "breathe" when parked.
Referring to UCANS question, I always select vent and run the fan on high for about 30 seconds to dry off the evaporator before i get out of the truck to keep mildew from growing on it and keep the funky smell away. Any thoughts on doing this guys? Also the owners manual says leaving it on vent will help the truck "breathe" when parked.
As the weather turns colder in the fall, field mice love to make their nest in your heater core box, and leaving the vent door open overnight is like an open invitation!
JT, hope you're having a great weekend...all of you!
After searching 3 Autozones and 1 Advanced Auto, a heater valve was finally located at O'Reilly's. My son and I installed the valve this morning and the "vent" mode was very, very nice this morning for a change. Then as the heat has settled in, the regular "AC" mode is now nice and cool.
JT, after installing, I checked all the modes to see when the valve opened or closed. It opened for Defrost mode, so you should be okay.
So, if I understand several other comments...our pickup's don't have a thermostat switch installed in the AC condensor that cycles the compressor?
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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!
So, if I understand several other comments...our pickup's don't have a thermostat switch installed in the AC condensor that cycles the compressor?
That is correct! When you turn the knob for temperature setting, all you are doing is letting more (or less) hot water to enter the core which then makes the air from the air conditoner not as cold (or colder). Dumb#$% design award!
Can anyone tell me if Ford has continued this design into the later years? Or have they finally put a thermostat so the temperature is actually controlled through compressor engagement/disengagement?
So if your system is not OFF, then the AC compressor is running??? UMMMM, doesn't that help to kill fuel efficiency AND create excess wear on the compressor???///SNIP///
No, that's not true. The compressor runs in all settings EXCEPT Vent & Floor Heat (and off, obviously).
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.Take Care , Country.
uuuuhhhh HHMMM, NOP
really can't think of anything else.
Take Care all......
. 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?
![http://h1.ripway.com/nlemerise/Ford/marine2.jpg[/IMG]Semper Fi Fund!](http://avatars.ibsrv.net/ibsrv/res/src:www.ford-trucks.com/get/forums/image.php?u=275468&type=sigpic&dateline=1230663830)
Then as the heat has settled in, the regular "AC" mode is now nice and cool. 
design award! 
