P0683 - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 8 (permalink) Old 03-17-2011, 05:36 PM Thread Starter
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P0683

Have the glow plug module fault code P0683, Where do I start???, Is there a relay or fuse that I am missing??

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post #2 of 8 (permalink) Old 03-17-2011, 09:07 PM
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Re: P0683

Subscribed... same code two days ago. I'm searching everywhere and can't find a decent procedure to replace Glow Plugs. I need pictures. Good Luck!
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post #3 of 8 (permalink) Old 03-17-2011, 11:49 PM
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Re: P0683

P0683 is a faulty glow plug controll module about 99% of the time. There is a very long pinpoint test to determine this (i have a known good one that i use to check them)....But i would say if it was my truck and i didnt have any real way of testing it, id be pretty comforatable saying that replacing the module would more than likely fix your problem

The module is the little silver box on the front of the passenger valve cover.

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post #4 of 8 (permalink) Old 03-18-2011, 02:04 AM
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Re: P0683

Snap! I just realized that my code is a P0673, not P0683.
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post #5 of 8 (permalink) Old 03-18-2011, 02:52 AM
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Re: P0683

Quote:
Originally Posted by Komelika View Post
Snap! I just realized that my code is a P0673, not P0683.
P0673 is cylender number three glow plug code. 90% of the time its the glow plug. Every once in a while you see a glow plug module fail on only one cylender though. Easiest way to test is to pull the number three glow plug and measure the resistance. One probe needs to go on the top little metal part that the harness snaps over....and the other one needs to to be touching the threads. Resistance should be less than 1 ohm. If the glow plug is bad, replace it. If it is good, its probably the module (its rare to see a wiring issue but its always possible.)

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post #6 of 8 (permalink) Old 03-18-2011, 04:14 AM
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Re: P0683

Make sure you get the correct size glow plug, they changed length in between the years, putting the wrong size in will definetly not be good!!!

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post #7 of 8 (permalink) Old 03-18-2011, 01:39 PM
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Re: P0683

Its getting warmer here so the glow plugs shouldn't effect starting for a while. I'm thinking about waiting until the fall and just replacing all the glow plugs at the same time. I'd hate to replace one and have another fail shortly after. If I replace all of them then hopefully I will get another 100K out of them before having to worry again. Just have to drive around with a check engine light on until then. We'll see.
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post #8 of 8 (permalink) Old 11-04-2015, 12:26 AM
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Re: P0683

I know old post but I have same problem is it safe to drive
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