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  #1  
Old 01-14-2013, 04:32 AM
tastebeer tastebeer is offline
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2001 3500 diesel overheating

I have a 2001 3500 diesel, auto tranny that started overheating with the plow up on the last snow. It has NEVER done this in the past and as far as I can tell, nothing has changed. The radiator is full, the tranny is full and both are clean. It does not go much past the upper normal limit but I have plowed the same way for 8yrs with this setup and I have never had the temp go beyond the lower normal limit with the plow up. Any ideas/suggestions as to what I should look for to correct this? My initial thought is the fan clutch that may not locking in when the temp starts to rise. Any info will be helpful.
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  #2  
Old 01-14-2013, 05:41 AM
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DAFFMOBILEWASH DAFFMOBILEWASH is offline
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I would start with the front of the rad and look for something blocking the air flow. Not sure if your clutch is mechanicial or electricly driven clutch. If electric check the fuses and wiring, perhaps it wiggled loose. Mechanicial ones will have a resistance when spining them by hand. No resistance then the clutch is wiped out.
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  #3  
Old 01-14-2013, 08:56 AM
jhenderson9196 jhenderson9196 is offline
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75% of the time it's a bad fan clutch.
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  #4  
Old 01-14-2013, 09:04 AM
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White Gardens White Gardens is offline
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When was the last time you did a thorough cleaning on the radiator itself.



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  #5  
Old 01-16-2013, 08:29 AM
tastebeer tastebeer is offline
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the radiator was cleaned 2yrs ago, there is no external blockage on the radiator or tranny cooler.
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  #6  
Old 01-16-2013, 08:28 PM
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White Gardens White Gardens is offline
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Quote:
Originally Posted by tastebeer View Post
the radiator was cleaned 2yrs ago, there is no external blockage on the radiator or tranny cooler.
You don't think there is a possibility that it could be clogged again?

And when you say no external blockage, are you looking at the AC condenser or the radiator?


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Old 01-16-2013, 09:05 PM
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plowguy43 plowguy43 is online now
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Degrease and pressure wash the radiator.
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  #8  
Old 01-16-2013, 09:07 PM
jhenderson9196 jhenderson9196 is offline
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Don't pressure wash a rad. Car wash,ok. Garden hose, ok.
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Old 01-17-2013, 10:10 AM
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plowguy43 plowguy43 is online now
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Any self serve car wash "pressure wash" will be fine, thats what I meant sorry. Don't go using an 8000PSI commercial pressure washer and don't keep the nozzle 2"s away.
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  #10  
Old 01-17-2013, 08:23 PM
tastebeer tastebeer is offline
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I changed the fan clutch, the bearings were worn, not sure if this was the problem, I drove it today (outside temp around 38deg) and the temp ran mid normal. This was with the plow in the raised position. I will see when I load the spreader (8ft with 6in extender sides) if I have any more overheating issues.
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