Tom_Barb
Dec 18, 2015Explorer
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...
sjholt wrote:
After looking at this thread a second time, I see that "under the microscope there is a hard particle"?
That would mean to me that there is hot exhaust getting into the fuel system under high pressure. I would suspect a cracked head. Somehow the fuel is getting burned to create a hard particle.
Maybe a compression check would verify it? Maybe not. Is there a fuel passage way in the head?
If the filter changes/mileage remains the same, then I would just change them every so often and keep on driving.
JMHO