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Evening all,
I've got a 2006 F350, it threw codes for 2 glow plugs, then 3, then 5. I replaced all 8 glowplugs and both harnesses with Motorcraft parts. Got plug 1 and 3 code still. Replaced GLCM, still have 1 and 3, and now 6. Any thoughts on this? With winter almost upon us, I need to get this sorted out. The only thing left to change is the section of harness between GP harnesses and GPCM, pretty sure that's the main harness and not replaceable
Sean