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Old 09-20-2009, 04:40 PM
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what causes this?

hey guys the truck has recently started spitting out hot air when the ac is on...the wife took it to the shop they said it's the fan? does this mean its the fan inside the dash or the fan clutch at the front of the engine??? if it's the fan at the front is there anyway to put electrical fans on my truck? I have a 00 7.3....also if I throw on dual electrics wont it boost hp a little? is it worth the extra 300 bucks for an electric fan or is it only a few hp?

please help....also what are your opinions on bullydog chips? I just bought one so Im wondering what your decisions and thoughts on them are.

thanks

Chad
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Old 09-20-2009, 05:50 PM
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go for custom tunes, not bullydog
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Old 09-21-2009, 02:32 PM
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It doesn't sound like a fan issue to me. If it is blowing hot air it isn't the fan in the dash. I would suspect that you would get some cold air if it is the fan on your evaporator.

The first thing I would check is the r-134a. Just go to a parts store and buy a bottle with a gauge. Make sure you check it on the low pressure side with the AC running on max and the engine running.
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Old 09-21-2009, 10:50 PM
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you won't gain squat from electric fans unless your current fan is engaged all the time which I doubt.You will over heat if you tow heavy.
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Old 09-21-2009, 11:24 PM
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Sounds more like a damper problem, coolant is always going through the heater core, the a/c is effective only when the air is directed through the a/c (evaporator?) coils, not the heater core. There are mods out there that put a solenoid valve to shut off the coolant to the heater core so the a/c can work better, without interference from the hot air near that heater core. make sense to anyone???
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