I have owned several powerstrokes, However I just traded in my last powerstroke and bought my first cummins, a 2002, 3500 Dually, automatic. Now I need some help. About a month after I bought it, it started missing, overheating and losing power. I took it to a trusted mechanic and he said the fuel filter was so clogged it was hardly flowing any fuel. He changed the filter and ran some injector cleaner through it, and it ran great for another month. Then it started again. I changed the filter and have ran several bottles of injector cleaner through it over a period of a couple weeks. Now it runs fine after I let it warm up for two or three minutes. However when I first start it, it misses, won't rev to 2000 RPMs and blows grey/white smoke. I put a fuel pressure gauge on it and the pressure is about 15 at idle, about 10 at 75mph. What could be my problem? Is my injector pump going out, are my injectors clogged?
Last edited: