Customer insisted his truck had a "ghost vibration" so I rode along, and 20 feet in I knew exactly what it was
Turns out his 12 pack of Mountain Dew in the bed was sliding around every time he tapped the brakes, and he'd been blaming the U joints for six weeks. I didn't have the heart to charge him the diag fee, but I did make him buy me lunch at the Dairy Queen off Route 9. What's the weirdest thing a customer has sworn was a mechanical problem?
Had a guy swear his rear end was gonna lock up on the highway, turned out his kid left a bowling ball rolling around in the trunk. At least yours bought lunch, mine just stared at me like I was the idiot.