Neighbor has a 2002 Ford Explorer. About three weeks ago it ‘ate’ a starter relay - one of the black cans in the box on the driver’s fender.
Replaced it, it ran fine for three weeks. HOWEVER, this week, owner drove it about 7 miles to work and parked - and it wouldn’t crank, same exact symptom as before.
What do I need to do to confirm that there is not a further problem with the starter/bendix/solenoid? I don’t just want to go put new relays oin it and have this happen in another three weeks.