long story but i'll try to sum up best as possible. one cold morning it wouldnt start (dont worry i plugged it in that night). sounded like starter was out, b/c ive replaced it twice so i know the sound. Replaced that, still wouldnt start, so i put two new batteries, and fuel filter. Still wouldn't start, so I bled the lines, still nothing. Called my uncle and we used the spray, and now that is the only way to get it started. Starting to think its fuel pump, but this is my first diesel so im not to sure, need and experienced owner's opinion.