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1994.5 - 1997 7.3L Power Stroke Diesel  

Glow plug Controller

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Old Jan 12, 2008 | 12:30 PM
  #1  
jle70's Avatar
jle70
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From: Sullivan, IL USA
Glow plug Controller

I was checking on the glow plug controller and the power side is very hot and you can smell it getting hot.
13 vdc with key off, 12 vdc with key on.
Key on is when it gets hot, the opposite side only gets about 7 vdc.
What causes this?
Bad Controller?
 
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Old Jan 12, 2008 | 01:46 PM
  #2  
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From: Levittown
Sounds like its time for a new relay.

Bill
 
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Old Jan 12, 2008 | 01:54 PM
  #3  
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From: Medford Oregon
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X2 on Bill, probably GPL as you described problem. Sounds like bad contacts inside the glow Plug Relay.
 
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Old Jan 13, 2008 | 03:55 PM
  #4  
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jle70
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From: Sullivan, IL USA
Put in new glow plug relay, works good now. I was also able to plug back in fuel heater after blowing fuse #22 alot, obviously this was the problem.
 
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Old Jan 13, 2008 | 05:40 PM
  #5  
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Great ... Don't ya just love the simple fixes !!!
 
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Old Jan 13, 2008 | 06:00 PM
  #6  
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1997F-350
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From: SHELTON, WA
Originally Posted by jle70
Put in new glow plug relay, works good now. I was also able to plug back in fuel heater after blowing fuse #22 alot, obviously this was the problem.
next time you check your fuel filter check the fuel heater under where the filter sits and make sure the 3 welds havent cracked and the wire isnt loose. could just not be hitting the side of the bowl at the current time. just to be safe. might wanna carry an extra maxi fuse until then.
 
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Old Jan 14, 2008 | 06:27 AM
  #7  
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jle70
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From: Sullivan, IL USA
Actually I soldered some wires to a 20 amp circuit breaker. Now if that fuse blows I am not gonna blow more, just plug in circuit breaker until the cause is found. That fuse will never strand me again. I also carry 1 extra of every size and amps.
 
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