Can my truck still run if someone stole my catalytic converter?
Well, far enough to get it to the shop to be fixed anyway, You will make lots of noise and may attract the attention of the local police, but just tell them your catalytic converter was stolen, and you’re on the way to get it fixed. Unfortunately that is happening a lot these days, they bring a lot at the scrap metal places. Your O² sensors will be giving the wrong signals to the computer, and it will be trying to compensate for what it’s seeing, which means your engine will be running too rich and your mileage will suffer, and eventually it won’t be able to compensate and the check engine light will come on, but they will reset that when they put on the new converter.
