Hello everyone.

I have a 99 F-350 SD 7.3 that had a bad glow plug relay causing hard start [...] had a 2 volt drop from battery feed to relay to glow plug [...] to lug. I did ohnm test glow plugs at valve covers and came up with 2.2 to 2.4 ohms on all 8. Doe... Login to read more.

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