Where is the glow plug relay on 2005 ford 6.0 diesel?
The glow plug relay on a 2005 Ford 6.0L Powerstroke diesel is not a single, easily identifiable relay like in some other vehicles. Instead, the glow plug control module (PCM) handles the glow plug operation. There's no separate relay to replace. The PCM itself is responsible for controlling the glow plugs via the wiring harness. Therefore, you won't find a "glow plug relay" in the fuse box or anywhere else. Any issues with glow plug operation point to problems with the PCM, wiring harness, or the glow plugs themselves.