: High temperatures can cause fuel in the lines or injectors to vaporize, creating bubbles that disrupt injection timing and quantity.
There is a specific kind of heat that doesn't register on a thermometer, but etches itself into the muscle memory of a mechanic. It is the heat of the BD2 injector—a phrase that, in certain diesel circles, is uttered with a mix of reverence and a wince. bd2 injector hot