Parts-first diagnosis

Definition

Diagnosing before the truck rolls so the right part rides on the first visit.

Why It Matters

Every truck roll without the right part turns one job into two, and the second visit is the margin leaving. Shops that diagnose by phone or photo before rolling load the van for the fix and complete on the first visit far more often. Ask how dispatch decides what rides on the truck, because that answer is the operating system a buyer inherits, and a seller who cannot state a first-visit completion rate has not measured the cost of a second trip.