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Old 10-25-2006, 11:22 AM   #1 (permalink)
miamidieselflorida
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Where Exactly are the Glow Plug Relays / Controller 2003 Duramax ?

Hello guys,

I just got a check engine light in a 2003 Chevy Duramax Automatic 4X2 truck with 140K Miles.

The scanner showes two codes:

P0380 - GlowPlug Heater

P0404 - EGR Flow

I did some research and came to the point that I must change my glow plug relays or the glow plug controller. Where are the relay's located and the controller?

Guys I am new with Duramax... where is the turbo located? I think the relays are close to the turbo area... if i am correct... if there any site with diagrams?

Thanks guys !
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Old 10-25-2006, 12:09 PM   #2 (permalink)
The Neens
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The glow plug controller is on the top of the driver's side valve cover near the firewall...The turbo is in the middle of the engine near the firewall...
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