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Replace #5 Glow plug 6.6 LLY Duramax Diesel - Cars & Trucks

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Posted on Jan 02, 2017

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SOURCE: Jaguar glow plug problem

electronic EGR valve

Posted on May 18, 2009

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SOURCE: #6 glow plug failure, on gmc duramax engine, which

passenger side 3rd cylinder from front

Posted on Sep 21, 2009

  • 832 Answers

SOURCE: 1997 VW JETTA DIESEL GLOW PLUGS

You have to replace the defective glow plug. You can test the glow plug without the test light. Just put a wire on the bolted end of the glow plug and connect this to the battery (+) terminal. Then, put a wire around the body of the glow plug and connect this to the battery (-) negative terminal. Hold at this position for a minute or less. Good glow plug will heat up.

As far as the wiring schematics, I will just describe
it. Your ignition switch is connected to the positive
terminal of the battery by way of the fuse in the fuse
box. From the switch it goes to a timing relay before
going to the glow plug terminals. The glow plug body
is screw mounted to the engine block which serves
as the negative terminal. So, as you switch your
ignition, it heats up the glow plug enough to give a
combustion of the atomized fuel in the cylinder piston
of your car causing it to run.

Posted on Nov 21, 2009

  • 3600 Answers

SOURCE: i have a 2003 gmc sierra duramax diesel and im in

The diagram is simple each glow plug is connected in a series circuit like this -0-0-0-0-0-0-0 that's a in-line 6 for a V-8 it would look like this
[-0-0-0-0
[-0-0-0-0
and the plugs would be hooked up on the back then if you follow the wire to the glow plug relay you will find that the relay has four wires one to battery one to the glow plugs one to the ignition switch and one to ground in the box. If you want you can purchase a manual for 5.99 on-line. and it covers the three fuse-able links for this system and the new Glow plugs available for this truck here is the web page. http://www.wiring-diagram.com/?gclid=CMuAvJ3Ql58CFQZfagod0jpAxQ

Posted on Jan 09, 2010

  • 17 Answers

SOURCE: Need to know firing sequence

I am told the glow plugs heat up in "firing" order, also the Duramax uses a intake air heater to warm the air on cold starts.

Posted on Jan 13, 2011

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6.6 duramax hooked on either


this is not a good idea,,, if the glow plugs come on while cranking you will do some serious damage. glow plugs first must not be coming on... you don't mention what year or engine lb7 lly lbz lmm?? fuel management filters ,,lift pump lb7 had external fuel pump..

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just had this problem it was the PDM ended up replacing the glow plugs
best price and life time warranty for both was at Auto Zone recommend if you buy the PDM get the extension cable and move the PDM to a cooler location

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My 2500 duramax diesel dosent want to start


Does it have diesel?
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I have a 2006 chevy silverado 2500HD 4x4 6.6 litre duramax deisel and the number 5 cylinder glow plug is bad, I purchased a new glow plug and now I want to make sure that I install it into the number 5...


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Need to know firing sequence of glow plugs on a 2006 chevy 2500 hd duramax diesel engine


I am told the glow plugs heat up in "firing" order, also the Duramax uses a intake air heater to warm the air on cold starts.

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I have a 2003 gmc sierra duramax diesel and im in need of a glow plug diagram?


The diagram is simple each glow plug is connected in a series circuit like this -0-0-0-0-0-0-0 that's a in-line 6 for a V-8 it would look like this
[-0-0-0-0
[-0-0-0-0
and the plugs would be hooked up on the back then if you follow the wire to the glow plug relay you will find that the relay has four wires one to battery one to the glow plugs one to the ignition switch and one to ground in the box. If you want you can purchase a manual for 5.99 on-line. and it covers the three fuse-able links for this system and the new Glow plugs available for this truck here is the web page. http://www.wiring-diagram.com/?gclid=CMuAvJ3Ql58CFQZfagod0jpAxQ

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