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Old Sep 14, 2006 | 10:01 AM
  #1  
86 F-250 Diesel 4X4's Avatar
86 F-250 Diesel 4X4
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Starting 6.9

I live in NC and this summer I have noticed starting (turn key and wait for start light to go out) that first thing in the morning the light does not stay on for very long and I may have to cycle key several times and get a light before motor will start. After driving to work or anytime later that day when I turn the key the light stays on the correct amount of time and motor starts fine. Any thoughts??
Relay problem??
 
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Old Sep 14, 2006 | 03:47 PM
  #2  
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bilder12
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From: Northeastern Pa - USA
could be the controller or simply corrosion on the connection lugs of the controller. Could also be some of the glow plugs in the cooler morning air acting up.
 
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Old Sep 14, 2006 | 09:41 PM
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sailors30
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From: Oregon
I have an 85 6.9, and I bypassed the controller and use a spring loaded off/on switch to control the glow plug system. There is a wiring diagram floating around in a past threads that show how to do it. Saves on glow plugs, by not using the system more than needed. Works for me and lots others on this list.
 
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