Ford 7.3 Diesel- GLOW PLUG SYS-TESTS

Welcome back...its obvious what we were doin here on this job. However, i did forget to mention and add i should say....that when testing as I was showing when the relay doesn't click there's one of two things the one I was explaining where the PCM doesn't ground the glow plug relay. It also won't turn the relay on if the engine oil temperature sensor is indicating that it is at operating tmeperature. The glow plugs only come on when it is below that so if the sensor is reading bad then it would cause the relay to not click. To take the EOT sensor out of the equation, if you unplug it you can cycle the key and the relay clicks and you get a light now then you know the engine oil temperature sensor is what's causing your truck to not start, you have to do it cold obviuosly. If your truck has already been ran, if you shut it off you dont have to wait to start. The light does not depict glow plug on time. If its hot GLOW PLUGS WILL NOT COME ON. Theres no need to, cylinder temp is hot enough for combustion. Glow plugs are for cold starts only...thanks guys for watchin!!!!!

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Видео Ford 7.3 Diesel- GLOW PLUG SYS-TESTS канала PowerStroke Tech Talk w/ARod