Winter is coming and the truck is starting to hard start. 6 out 8 glow plugs showed no heat when hooked up to battery voltage. Other 2 got a little warm but not enough to burn me or make me regret my decision to touch the tip (that's what she said). So, its not that cold yet but I would rather do it now that when its 10^ out and I'm freezing my tail off. I painted the valve covers Ford blue because why the fuck not. Although it did make the rest of the engine bay look like shit. Need to fix that. I retained all factory stickers. The truck is a 99.5 F-350 with 7.3 Powerstroke.