Duramax Diesels Forum Truck of the Week
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Old 11-29-2016, 02:55 PM
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Johnston11106 Johnston11106 is offline
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Default P0678 Glow Plug 8 Control Circuit

So, I now apparently have a faulty glow plug When it rains, it pours. I did a little looking on here for the same code and seems to be an all to common issue. Noob question, but how are the glow plugs numbered and which one is number 8. Any help would be appreciated. Thanks.
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Old 11-29-2016, 03:10 PM
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clrussell clrussell is offline
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Number 8 is back driver side.. Easy from the bottom..

Number 1 is passenger front off #s this side
Number 2 is driver front even #s on this side
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Old 11-29-2016, 03:12 PM
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Quote:
Originally Posted by clrussell View Post
Number 8 is back driver side.. Easy from the bottom..

Number 1 is passenger front off #s this side
Number 2 is driver front even #s on this side
Thanks a bunch man
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2008 LMM LTZ CCSB
EFI Live Tuning(Moonshine) via Tony@RidgeRunner, 4094 STG2 Garrett Turbo, 4" Stainless Magnaflow Exhaust, Magnaflow Downpipe, AirDog II 165 4G, Edge CTS Insight, S&B CAI, Transgo Jr, PPE trans pan , PPE ported fuel rail fittings, DMAX store ultimate front end stage 3, DMAX store stage 3 leveling kit and ALWAYS running with AMSOIL👍
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Old 10-05-2017, 12:04 PM
tjburke75 tjburke75 is offline
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Default P0678 Not a Glow Plug

2009 Duramax Chevy 2500 Glow Plug 8 Circuit fault. Have replaced this Glow Plug twice and code still shows up. Any Suggestions. Yes the code was cleared. Thanks
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Old 10-05-2017, 01:06 PM
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clrussell clrussell is offline
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Quote:
Originally Posted by tjburke75 View Post
2009 Duramax Chevy 2500 Glow Plug 8 Circuit fault. Have replaced this Glow Plug twice and code still shows up. Any Suggestions. Yes the code was cleared. Thanks
Are you replacing the driver rear glow plug?
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Old 10-05-2017, 01:11 PM
tjburke75 tjburke75 is offline
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Default p0678 Code

Yes have Chevy Dealer do it once and independent Mechanic do it once.
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