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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

AC Stopped working

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Old Aug 25, 2018 | 11:33 PM
  #16  
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I'm a general engineer, i got my training on circuit boards on f15's, so my logic is when you want something to work, send power to it. My logic is if you don't want things to go wrong, don't send power to places where it's not necessary. But that's good to know, a completely foreign concept. i guess relays activating ground is safeer than relays activating power.
 
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Old Aug 25, 2018 | 11:56 PM
  #17  
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When you tend to be dropping things having a stray ground turn something on could really suck.
Nothing worse than dropping some object before you over the place where you want it to do the SPLAT at.
 
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Old Aug 25, 2018 | 11:59 PM
  #18  
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Try wiring in an aftermarket backup sensing system to a Lincoln LS working off the reverse lamps. And an Escape. I could go on ......

It can be a mixed bag as on our trucks.
 
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