The Tricky Truck
It's time for the new puzzler. And I thought I would use an automotive puzzler.
This is a real, actual true story, because it happened to none other than yours truly.
This one has to do with my old truck.
My son comes to me years ago, my older son, Louie, who had been driving my truck, and he says, "Dad, there's something wrong with the truck."
I said, "What, is it out of gas again?"
And he says, "No, no. I start the thing up in the morning and I drive it. And then he radio stops working, the whole radio won't work. The whole thing is dead. And I drive it for a little bit, and it comes on all by itself, and it goes off again. It is all messed up."
So, I decide I am going to fix the truck. So, I take the truck into the shop the next morning. And while I am driving, I notice that the radio indeed stops working. But I also notice something else. Something really interesting. When I step on the gas, it stops working. When I take my foot off the gas and go to step on the brake, it starts working again. Then when I take my foot off the brake, and step on the gas, it stops working again.
So I think to myself, this will be easy to fix. It must be a loose wire under the dash. When I step on the gas, the throttle cables must be hitting this loose wire causing the radio to stop working. Simple.
So when I get to the shop, I spend 2 hours working on this truck. There is no loose wire. There is constant current going to the radio. I can't find any reason that this might be happening. The truck appears to work perfectly. The radio works fine. I can't recreate the problem in the garage.
So, I give up on the truck for the day. As I am driving the thing home, the same thing happens, of course. So on this drive home I am fiddling with everything on the dash. And I discover that when I pushed in the cigarette lighter, the radio worked. I pulled out the cigarette lighter, the radio stopped working. So, I put the lighter in, and I hold it in. I don't let it pop out, and the radio works the whole time. Until the cigarette lighter fuse blows and then the radio stops working again.
I continue the drive home and I realize at that moment, that I can't see a thing. All of a sudden, both headlights have stopped working.
And just then, I realize what is happening.
And the puzzler is, what is going on here?