How many miles on it ? Any codes ? Any cooling system problems ?
391k and no cooling problems. The smoke has actually cleared up I pulled the injector and reinstalled it which fixed the mist of white smoke while I drive but it’s knocking now and cyl 4 fails a contribution test which is they cylinder that cracked an injector. It has a new injector but could it be a faulty injector or is it more likely I may have cooked that cylinder? I haven’t ran a compression test yet don’t have the adapter right now.How many miles on it ? Any codes ? Any cooling system problems ?
Sorry for confusion I’m using forscan. At first it told me 3/8 but I found it was 4 that had a cracked injector I replaced it with a new injector from thoroughbred diesel which has cleaned up my smoke but I have a slight knock and cylinder 4/8 still fail a contribution test. Cylinder 8 was knocking when I bought the truck after replacing it my knock went away but it still never passed the testSo it was 3 & 8, but you replaced 4.
Now its 8 and 4 again, but you say they are new?
Where are you getting the injectors?
What scanner are you using?
If you are sure they are new and functioning, then it could be the harness, or something unrelated that you broke while doing injectors.