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Old 04-26-2008, 09:34 PM   #1
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Default burnt out plugs.

I have two trucks, that were running great each different engines, all of a sudden they both started burning out brand new glow plugs within 2 or 3 minutes of run time. Tried a few different kinds of plugs and setting, nothing seems to work, anybody have any ideas?
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Old 04-26-2008, 10:25 PM   #2
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try richening it up.
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Old 04-27-2008, 02:11 AM   #3
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did you change fuels? i got a customer who has a shot glow heater... it's putting out more than 3volts and burnt the plugs after about 8 secs on it...

not sure if this applies to you, but can give it a check....

2 cents...
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Old 04-27-2008, 06:02 AM   #4
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Blowing plugs mean one of two things typically.

Is it black on the face? If yes, you're running to lean, generally on bottom and to rich on top.

Is is still kinda shiny? Too rich on bottom.

A nice golden brown? Great tune.

Not gospel by any means but it should be a great start.
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Old 04-27-2008, 07:15 AM   #5
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Water contamination in your fuel will eat glowplugs as well. Seeming how it started happening to both vehicles out of nowhere and the only variable that is the same is the fuel your using (if your using different fuels for each vehicle it is definitely your tune) for both vehicles.

The tiniest amount of water in your fuel will cause you all sorts of hell i had it happen to me once and i about pulled my hair out till while trouble shooting, i ran outta fuel and had to buy another gallon, and the problem magically went away.
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Last edited by wes95_z28; 04-27-2008 at 07:15 AM. Reason: spelling
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