AC kinda works when it wants.... - Ford Powerstroke Diesel Forum
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Old 06-13-2011, 01:07 PM
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AC kinda works when it wants....

Sorry guys, Im new to the powerstroke world. Ive owned lots of trucks but this is my first ford (I love it!)

I just picked up a 00 7.3 and the trucks a beast...my first issue is that when im driving around in town the ac works pretty good when Im on the go pedal. As soon as I left off it starts blowing hot air.

I've seen a diverter thing on dieselsite but im not sure it that will cure my problem or if I just need to have my AC serviced.

Trucks got 100k on the clock.
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Old 06-13-2011, 01:38 PM
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I was hoping to see some feedback in here, as I'm having the same issue. Mine is only about once a day, seems like the compressor just quits until I get the rpm's back up, then it ocmes on again. I'm thinking compressor clutch, but was looking for experienced advice...
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Old 06-13-2011, 01:44 PM
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Have u checked the refrigirant level? I'm not much help. Sorry.

Sent from my portable forum surfing device.
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Old 06-13-2011, 01:50 PM
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They all do this when it gets fairly hot. One thing I do is press the recirculation button and it draws in the cooler air from the cab as opposed to the 90+ ambient air from outside. Thus far, this has always fixed my 'hot' AC problem. Hope it helps you too.
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Old 06-13-2011, 02:16 PM
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I dont even remember seeing a recirculation button...ill have to double check.

I just ordere this (below), ill let you guys know if it helps.

http://www.dieselsite.com/index.asp?...PROD&ProdID=21

Just ordered some of their other filters too.

Last edited by dezl; 06-13-2011 at 02:22 PM.
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Old 06-13-2011, 02:40 PM
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Quote:
Originally Posted by dezl View Post
I dont even remember seeing a recirculation button...ill have to double check.

I just ordere this (below), ill let you guys know if it helps.

http://www.dieselsite.com/index.asp?...PROD&ProdID=21

Just ordered some of their other filters too.
i was looking at ordering the same thing, i did a search and cant find anybody saying anything bad about it, nothing but good things. i just had my ac serviced and it seems to work alittle better
i hope that cures your problem
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Old 06-13-2011, 02:49 PM
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i also seen a video on youtube from powerstrokehelp guy or something like that. he puts in a smaller orificetub in the ac line which is supposed to really make it cold, not really sure though.
maybe someone can chime in that would really know about a/c,s
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Old 06-13-2011, 06:11 PM
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That valve is way to much. I bought a bypass valve for the heater from the auto parts store for under 20 bux and put it in. Connected it to the MAX AC line so I basically have no heat with the MAX AC on. It just bypasses and flows back to the motor. Honestly, it still does just like you said. It gets a little warmer when I am stopped. Either way for under 20 bux it was worth doing. I think it was for a late 80's ranger or something like that.
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Old 06-13-2011, 07:16 PM
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mine isn't a little warmer when stopped, its like I turn the heat full blast then when Im on the go pedal its good. Another strange thing is when Im cruising on the highway it gets hot, then I hit to go pedal and it cools down.
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Old 06-13-2011, 08:18 PM
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Sounds like you need to get your AC system checked out... After over 4 years of owning my truck and driving it in 120+ desert heat, I've never had the on-off problem.

I'm about to add an on-off ball valve to shut off the heater core. You need a 3/4" PEX ball valve with the barbed ends. $9 from Lowes, much cheaper than the auto parts store or for the dieselsite automatic valve. Just gotta remember to turn it off at the start of summer and on at the end of summer so you have heat.
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