I imagine that if the light is blinking the engine most likely has a glow plug out. This can often be tested by removing the preheat harness from the time/relay and using a test light. Attach the clip of the test light to the positive connection of the vehicles battery. Then probe the terminal of each glow plug, you might have to remove insulators and things to get to them. The result, if it lights up its good, if it does not, replace.
Glow is probably for "glow plug" which is a diesel engine application. If your vehicle isn't diesel, it had that option as an engine, so that fuse would be found empty in your vehicle. If your vehicle is a diesel, a blown fuse here would lead to a "hard to start"or "no start" issue.
Glow Plug/Heater Cylinder 4
the differenc eis this a 1.6 petrol is a 1.6 liter engine that is fueled by gasoline a 1.8 diesel is a 1.8 liter engine fuels with diesel
The glow plug light flashing on a 2004 Isuzu NPR typically indicates a problem with the engine's starting system, particularly related to the glow plugs or the diesel fuel system. This could mean that the glow plugs are malfunctioning, the fuel is not reaching the engine properly, or there could be an issue with the engine's sensors. It's advisable to have the vehicle diagnosed by a qualified technician to determine the exact cause and ensure proper repairs.
Glow plugs need changing. Is it diesel?
The most probable cause is that one or multiple heater plugs are faulty.
A flashing check engine light normally means you have a misfire.
The glow plugs are warming up prior to the motor being started up.
B series trucks do not have glow plugs, they are gas engines glow plugs are used only on diesel engines. You mean to say spark plugs. Simply unplug the plug and install a spark plug socket and loosen with a wrench
The engines cylinders displace 1.5 liter. i.e. if petrol is the fuel for the car and not diesel
because flashing green lights mean go and the green lights that are not flashing mean stop
Trouble code P0680 means: Reserve for future glow plugs 9-12