Loose Injector
Has any one heard of the Cummins 8.3 ISC having a loose injector causing combustion products to enter the return fuel going back to the main tank and causing the fuel to turn black, then clogging filt...
Forum Discussion
in the 8.3 CAPS system the return fuel and the combustion chamber are separated by 1 crush gasket at the bottom of the injector. Soot from the combustion chamber is what makes you oil black, and it will do the same for the fuel.
