Why Test Before Replacing the Starter?
A clicking or no-crank symptom can also involve battery condition, battery terminals, cables, voltage loss, wiring, relays, control circuits, or other starting-system conditions. Replacing the starter without confirming the cause can leave the original problem unresolved.
Rapid repeated clicking often points toward low available voltage or a connection problem. One solid click may place more attention on the starter circuit or starter itself, but further testing may still be needed.
If the starter has not yet been tested, begin with Starter Testing and Starting System Service. If the engine cranks normally but will not start, visit Car Won't Start. If the battery has already failed testing, see Car Battery Service.