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
He has been posting about this since 2011. There is not a fuel return line from the injectors on that vintage ISC (2000) so a loose injector would only have compression leaking by it if loose. Cummins has said the only place oil and fuel can mix is in the CAPS injection pump... $$$$. BUT supposedly the excess fuel goes back to the inlet, not back to the tank which turns black. Changing the fuel filters is the cheapest option.
A IH 4300 probably has a IH DT466 engine, not a Cummins.
A IH 4300 probably has a IH DT466 engine, not a Cummins.
