6.9 Glow Plug Controller Problems
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6.9 Glow Plug Controller Problems
My 83 6.9 is having glow plug problems. Sometimes the glow plugs come on sometimes they dont. sometimes when they dont i can bump the starter, turn the key off then back on and they then start working. 8 new plugs, new relay. only thing left is a faulty controller and a messed up ignition switch. Anyone know how to test the controller before i go and drop $70 on a new one?
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From: Saint Maries Idaho
I dont know of any tests right off, but if you are going to change it out I would recommend spraying it with every penetrating oil you have right now... The body of the controller is aluminum and is known for twisting off.
There is a possibility that it is your ignition switch so you may want to test if your controller is getting power first. I do not have a pinout handy but one of the wires to the controller should be switched power and you should be able to locate it with a test light. If not, it is probably the switch.
There is a possibility that it is your ignition switch so you may want to test if your controller is getting power first. I do not have a pinout handy but one of the wires to the controller should be switched power and you should be able to locate it with a test light. If not, it is probably the switch.
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I replaced the switch last year when I bought it because the lady couldnt find a key. I ended up taking out the little gear at the end of the tumbler and I know I got it in wrong. to get the radio and everything else to come on after it starts ive got to turn the key back slightly. But it did fine for a year and a half. Now its working whenever it feels like it.
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Joined: Nov 2003
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From: Saint Maries Idaho
I replaced the switch last year when I bought it because the lady couldnt find a key. I ended up taking out the little gear at the end of the tumbler and I know I got it in wrong. to get the radio and everything else to come on after it starts ive got to turn the key back slightly. But it did fine for a year and a half. Now its working whenever it feels like it.
Here is the location of the switch.
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