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2003 1500 Van eFan

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  #41  
Old 08-01-2010 | 03:42 PM
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Originally Posted by alloro
So when the A/C is off the fan will operate at low speed and be controlled automatically by the coolant temperature sensor. When the A/C is turned on, the fan will automatically switch over and run on high continuously until the A/C or the ignition is turned off. I didn't show all of the fan controller wiring or the fuse, so install those where necessary.

Here's the drawing...

Excellent info. Many many thanks. I think that's how I'm going to set it up.
 
  #42  
Old 08-01-2010 | 11:28 PM
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All went well on the first test drive... only thing was that after I got home and shut the van off the fan continued to run for about another minute or two... is that normal or did I screw something up in the wiring?
 
  #43  
Old 08-01-2010 | 11:43 PM
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Check the paperwork that came with the controller, it may have a built in timer and if so then this is fine. Other wise you may find that the controller has power to it even with the ignition turned off, if so find a better key on only source to power the controller.
 
  #44  
Old 08-02-2010 | 12:18 AM
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Originally Posted by Mobile Auto Repair
Check the paperwork that came with the controller, it may have a built in timer and if so then this is fine.
I suspect this is going to be the case, otherwise there would be no need for a fan controller, only a relay turned on and off by the CTS.
 
  #45  
Old 08-02-2010 | 01:53 AM
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Well, as long as the fan running for a minute or two after I shut off the van is not going to cause any problems then I'm just not going to worry about it

Based on what I'm reading I'm not sure if this thing has a built in timer because it tells you to tap into an always hot lead in order to have the fan run when the ignition is off. I must have done that (or it's just how it's going to work because I've set it up with the 2 extra relays)... oh well.. that part was a pain in the **** and I'm not sure I'm willing to relocate that lead at this point
 

Last edited by banner1124; 08-02-2010 at 01:10 PM.
  #46  
Old 08-02-2010 | 11:40 PM
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Well I must say I'm quite pleased with the results. Cooling system works just as well as it did before, but now without it feeling like I'm dragging 3 tons of bricks behind my van on a hot day. I'm a tad **** so I'm getting a wee bit annoyed with the fan running after I shut the van off, but I'll just have to learn to live with it I suppose
 
  #47  
Old 08-03-2010 | 12:07 AM
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Originally Posted by banner1124
I'll just have to learn to live with it I suppose
Perish the thought! Rip the fan controller out and replace it with a relay. Wire the CTS to one side of the relay coil and an ignition wire to the other side. Then run the battery wire to 30 and 87 becomes your output. Now when the ignition is turned off, there's no power to energize the relay.
 
  #48  
Old 08-03-2010 | 12:35 AM
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Originally Posted by alloro
Perish the thought! Rip the fan controller out and replace it with a relay. Wire the CTS to one side of the relay coil and an ignition wire to the other side. Then run the battery wire to 30 and 87 becomes your output. Now when the ignition is turned off, there's no power to energize the relay.
So then you're saying that the only way to do this is by not using the controller at all? By the way, after all that crap I went through I ended up scrapping the double-relay setup and just using the fan controller and the high speed on the fan. Works great.
 
  #49  
Old 08-03-2010 | 12:40 AM
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Originally Posted by banner1124
So then you're saying that the only way to do this is by not using the controller at all?
Yes, unless the controller has some means to allow you to eliminate the timer.
 
  #50  
Old 08-03-2010 | 01:04 AM
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Originally Posted by alloro
Yes, unless the controller has some means to allow you to eliminate the timer.
I'll just learn to get used to it. Heck, can't be a bad thing.
 


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