Starting a 1982 GMC 6.2L Diesel that has been sitting for several years
I need tips on how to start a 6.2L diesel engine that has been sitting for
several years. Both batteries were bad and I have a single one in there now
and hook up another vehicle to it with jumper cables(good ones). It turns over
fine steadily that way. Not sure how to operate the glow plugs, or check if they
are working. The fuel filter in the engine compartment is full.