Hummer H3 For the Hummer driver who wants the rugged look and off road capabilities of the Hummer, but in a smaller size and with a more fuel economy friendly engine.

How difficult is a PCMforless E-fan conversion?

Old Mar 31, 2015 | 05:35 PM
  #11  
MeBelovinMyH3's Avatar
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yeah.. it have been running fine until this last sunday.. Started over heating and noticed its not cutting on with high temps.. But it cuts on with the heat or ac on..

:/
 
Old Apr 1, 2015 | 08:50 AM
  #12  
Doc Olds's Avatar
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From: Boat Town USA MI
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Originally Posted by MeBelovinMyH3
Doc.. after 3 years running in my truck the Efan, will not cut on when it reaches high temps.. I have to cut it on by running the heater/ac..

Changed the relay nothing, checked fuses nothing..

What else could it be? The temp sensor on the lower rad hose?
You should ask the PCMofNC people. If yours is not turning on by coolant temp, and you have an 06/07 with the sensor in the CNC aluminum fitting in the lower radiator hose (which seems to me you are telling us you do), then yes, I would suspect a bad sensor. You could ask PCMofNC their thoughts, and get the specifics on brand and part # for the sensor. It should be low cost item, and pretty easy to swap out.

You could also try cleaning the connectors (male & female) to the sensor to see if maybe there is corrosion breaking the contact, it is basically a switch, which throws on at a set heat level.
 
Old Apr 2, 2015 | 06:44 AM
  #13  
MeBelovinMyH3's Avatar
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Thanks Doc.. Thats what I was thinking it was. I have been trying to call them for the last 3 day and no one will answer the phone!!
 
Old Nov 21, 2017 | 06:43 PM
  #14  
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and recommendations on which brand and/or particular fan?
id like to save some money but I know you get what you pay for, I have a h3 luxury edition
thanks yall
 
Old May 25, 2020 | 08:04 PM
  #15  
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wow a necro post Doc didnt catch back in Nov 2017 ha ha
 
Old May 26, 2020 | 09:06 AM
  #16  
Doc Olds's Avatar
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Originally Posted by zefrum
wow a necro post Doc didnt catch back in Nov 2017 ha ha
Yeah, but I caught yours now?
 
Old Jul 4, 2020 | 03:57 PM
  #17  
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does anyone kow what the temp sensor in the kit rated at? like what temperature, i can build the rest of the kit.
 
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