2004 LLZ Duramax glow plug failure

[merritt racing engines]

I have a 04 Duramax the glow plug light stays on seen on this forum it might be the controller replaced it still have the problem.
Is there a fuse inline some where?
Any ideas?

[More Power]

The wait to start light stays on?

Does it power the glow plugs while the light is on?

A Tech II scan tool can be used to test the system.

Jim

[merritt racing engines]

Dropped it off at the dealer today I will soon find out.

[merritt racing engines]

It was the glow plug control module.
Also found a burnt glow plug and a bad injector in number 6 cylinders.
Does the LLY Duramax have a problem with eating glow plugs?
Did a bad injector take the glow plug out?

[DmaxMaverick]

A bad injector can cause a failed glow plug. It depends much on what is bad about the injector. If a cylinder is constantly overfueled, excessive heat can cause premature failure. The GP's are generally reliable, but do fail from time to time. I've had 4 GP's fail in my LB7, and I attribute the failure to the injector failures. I don't think it was just coincidence the cylinders with failed GP's just happen to also be the "problem injector" cylinders. They're not too costly, and easy to replace, so it's a minor issue as far as I'm concerned. When they fail, they do so quietly w/o mechanical damage or difficult removal, unlike the 9G plugs in a 6.2L.

[OC_DMAX]

I have read a number of Duramax posts where failed glow plugs "snapped off" when mechanics went to remove them. The entire cylinder head had to be removed. The repair went from being fairly simple and inexpensive to costly.

[merritt racing engines]

Thanks they had to order the injector it will be in after the holidays.
will it hurt the truck if I run it til then?