Fuel is getting in crank caseI want to know how to check to see where it’s comin

What is your question?

I replaced the cups and injectors prior to that there was no fuel getting in crank case after I did the work now to crank case filter full of fuel after running for about 15 minutes

How long has your 2003 GMC Sierra 2500 HD had this problem?

Since I put new injectors in it