Diagnosis is the most important aspect of any repair. If you can't make the correct diagnosis - then you're only guessing, all be it an educated guess, as to what needs to be repaired or replaced. If you get it wrong, you are wasting time and money on parts that won't fix the problem. We have experienced diesel technicians who can guide you through the diagnosis as well as point you in the right direction as to the tools that can prove what needs to be done to execute a the right repairs.