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Heating & Cooling 3rd Gen Dodge Ram Heating & Cooling Problems and Questions.


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  #1  
Old 05-08-2011, 04:21 PM
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Question AC electric fan check

I'm looking for to check it before I replace it. The AC blows cold while the truck is moving, but is intermittent warm/cold while not moving. The fan does not turn while parked with AC on and motor at operating temp. I checked the fuse and it's good. I'm guessing one of the two wires that go to the fan should be hot. Maybe do a probe test?
In an apparent unrelated situation, I was getting an antifreeze oder through the AC and thought the heater core was leaking , but I see there is coolant on the radiator reservoir tank and it seems the cap is bad. Is that likely?

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Old 05-08-2011, 05:22 PM
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I used a RC car battery, remove the fan and test it. My ram does the same thing
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Old 05-08-2011, 09:51 PM
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Thanks for the feedback. I did the probe test and it is getting power, so the fan seems to be bad.
Does anyone have the fan removal procedure?
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Old 05-08-2011, 11:26 PM
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great!!, youtube might be your best friend, search Dodge ram Ac, Dodge ram AC blower. I used this one..

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Old 05-08-2011, 11:53 PM
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Originally Posted by blackout View Post
great!!, youtube might be your best friend, search Dodge ram Ac, Dodge ram AC blower. I used this one..
for helping - nice work Bkackout!
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Old 05-09-2011, 10:50 AM
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Yes I appreciate it, there is a slight misunderstanding though. I probably wasn't clear enough. I was talking about the electric cooling fan by the AC radiator (by the battery under the hood). I looked on You Tube and wouldn't you know, I don't see anything on that. Maybe someone on here can give a general rundown???

Still curious about the radiator cap as well, do those go bad and allow coolant to leak out?

Thanks in advance!
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Old 05-09-2011, 01:28 PM
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Youtube search" dodge ram Ac radiator fan" brought this up, there is 2 parts. Now about this (rad)cap, they do go bad the rubber seal tends to stiffen up over time I have replaced mine. Also the Rad cap has a certain temp when it opens/closes to allow coolant to and/from the reservoir. Then it could also be ceased and allow coolant to leak out the radiator.

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Old 05-09-2011, 04:29 PM
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OK, excellent! I did try different word combos for the search, but apparently not that one. The cap does look OK (rubber not cracked or too stiff, spring seems good) that's why I was concerned maybe it was something else, like the system building too much pressure or something. I'll try a new one.

Thanks!
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