Originally Posted by Donnel1976

Need some help here, sounds a lot like what's going on with my 90 7.3 non turbo. Truck ran great when I bought it, but had jiffy lube change out the fuel filter and they talked me into doing a fuel system clean for free, wishing I hadn't done it, now the trucks harder to start and blows blueish grey smoke at startup. Trucks been dieing on me as we'll now, acts like its out of gas, does a fast idle then shakes and stalls. Thinking it may be fuel pump but nt sure. Did see some gas leaking when the truck is parked nose down on a hill , looks like its coming from fuel pump?? Also had alittle fuel on outside of filter they just put on. I knew I should of just changed it myself. Any help would be appreated