Miquel New member Messages 1 Apr 30, 2020 #1 I need to test glow plugs on a 7.3 Powerstroke. I have a test light, but how can I tell if the glow plugs are bad by using it?
I need to test glow plugs on a 7.3 Powerstroke. I have a test light, but how can I tell if the glow plugs are bad by using it?