2002 Chevrolet Silverado 2500 HD Q&A

2002 Chevrolet Silverado 2500 HD Question: 2002 diesel pickup smokes. I have changed the injectors. The smoke is blue.

2002 diesel pickup smokes. I have changed 3 injectors. The smoke is blue. -
Answer 1
Does the smoke have a "sweet" smell to it? -
Answer 2
Thanks Is that blue smoke after you changrd the Injectors or before ? -
Comment 1
After...but was doing it before.. why I change them. -