This is my mail route car. Lately, after a couple of hours of run time, I smell the distinct smell of carbon burning off. When it first happened, it was after almost 5 hours. Now it's closer to 1 hour. The smell comes and goes. The car runs fine. It actually seems like it's getting better gas mileage. That might be weather related. The only code I have is a P0446, which has been there for a while. I'll get to that eventually. Other more pressing things keep popping up. Recently it had idled high when I could until I turned it off and back on just a couple of times. That seems to have worked itself out. Any clues?
Background info: I bought the car almost 2 years ago. It had sat for at least a year. Then I used it daily. It burned carbon almost immediately because I bought it from an older couple, and I immediately put the hammer down on the gas pedal before bothering with registering the car. I put about 10,000 miles on it without further carbon smell before turning it into a mail car, and I do believe in occasionally opening up the throttle. Frankly, it's the best running car I've ever owned. I've owned a lot.
Background info: I bought the car almost 2 years ago. It had sat for at least a year. Then I used it daily. It burned carbon almost immediately because I bought it from an older couple, and I immediately put the hammer down on the gas pedal before bothering with registering the car. I put about 10,000 miles on it without further carbon smell before turning it into a mail car, and I do believe in occasionally opening up the throttle. Frankly, it's the best running car I've ever owned. I've owned a lot.
Mar 1, 2025 at 5:22 PM
