Here are 2025's most popular questions and answers from The Journal's Car Doctor column, from rotating tires to oil changes.

Engine cylinders can misfire due to problems with the ignition system, the fuel system, air and compression, or sensors and ...

Models are listed in ascending order, from the least reliable to the most reliable.

Sony has officially entered the 200MP mobile camera sensor race with the launch of the LYTIA 901, a large-format sensor designed to prioritize in-sensor zoom, AI remosaicing, and superior dynamic ...

There is more to Formula 1 than its swift speeds. Behind these thrilling races are integral parts and mechanics that come at a staggering price, all for the sake of victory. Normal cars can be ...

That does not mean the vehicles are submerged. In a sense, the drivers are. More than one in four trade-ins had negative equity in the third quarter of 2025, Edmunds reports. In auto industry parlance ...

Google and Mercedes just gave us a glimpse at what Gemini will be able to do inside cars, and it’s pretty impressive. The demo video shows Mercedes’ Chief Software Officer, Magnus Östberg, and Google ...

What exactly does car insurance cover? This is one of the most common questions we get, but the answer is surprisingly complex. It depends on the state where you live, what coverage you’ve chosen, who ...

Editorial Note: Content was created in partnership with Money Research Collective. Cars.com receives a commission from the partner links contained within the content. By Kiah Treece An extended ...

Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I document my learning in order to be able to inspire other people to make ...

Some engine bays are as droolworthy as the cars they adorn, but under the twisty mechanical artistry lies an array of electronic wizardry to help run your car. The crankshaft position sensor is one of ...

Back when I was selling Volkswagens, a couple came in to look at a new Passat. They picked out a dark blue SE with a beige interior and drove it. Then the woman spotted a gray one with a black ...