If you don’t know what it is, don’t drive over it. A Honda Odyssey came into the shop for a check engine light.
The technician found that the rear heater and air conditioning lines under the vehicle had gotten bent and broken when the driver ran over something., dumping all the coolant. As a result, the engine cooked itself at a nice 320 degrees. After overheating that badly, the only guaranteed fix is a new engine.
Mechanical Malarkey stickers available for $5 anywhere in the US!