so my poor sad 1982 300td has been sitting in my driveway since july. quick recap: boyfriend put some bad biodiesel into the diesel tank ( i run a two tank wvo system) The car hated it, it puttered all the way to the gas station, i filled it up, it ran fine all the way home then it wouldn't start again.

I drained the diesel tank, filled it with fresh diesel, changed all the fuel filters, and replaced the primer pump which also stopped working. No good, so recently (this past week) i installed an auxiliary fuel pump on the diesel side to bypass the lift pump completely. It still won't start.

When i crack the injectors, no fuel is coming out as i try to turn the car over. the new pump is working and there is fuel in the fuel filter. i cracked the return line coming out of the injector pump and no fuel is pumping through it.

so does this sound like a clogged IP or a bad IP? I'm fearing the worst here, i'm gonna have my mechanic check it out, but i always like to ask fellow MB owners for suggestions and opinions. thanks!!