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Old Feb 25, 2013 | 05:46 PM
  #1  
plumberboy76's Avatar
plumberboy76
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Trailering
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GPR

Hello all,

7.3 won't start under 25 or so degrees. Heard about the GPR problem, tested and no voltage when KOEO. Replaced GPR and brand new one still has no voltage with KOEO. Is there any fuse for the relay or did I just get a bad one from the store?

Thanks
 
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Old Feb 25, 2013 | 08:43 PM
  #2  
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nlemerise
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From: AZ
Originally Posted by plumberboy76
Hello all,

7.3 won't start under 25 or so degrees. Heard about the GPR problem, tested and no voltage when KOEO. Replaced GPR and brand new one still has no voltage with KOEO. Is there any fuse for the relay or did I just get a bad one from the store?

Thanks
Did you check voltage on the hot side of the relay? If so, what did you get for a reading with KOEO? Haven't checked the manual, but no fuse for the GPR that I know of...
 
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Old Feb 25, 2013 | 09:09 PM
  #3  
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The incoming voltage was 12.7 on the hot wire. Never checked the little wires, which one is the trigger wire that I have read about? I have also read about the dome light dimming down KOEO means the GPR is working and mine dims slightly but, I can't get voltage on the load side of the relay and it's brand new. Kind o mind boggling.
 
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Old Feb 25, 2013 | 09:24 PM
  #4  
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Ken made a good video that should help. The trigger (ground) comes from the pcm.

 
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Old Feb 25, 2013 | 09:53 PM
  #5  
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JT250
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From: OKC, OK
If your pcm isnt supplying the ground you can make your own switch to energize the system.
 
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