Consumer Reports explains what the check engine light means and what to do when you see it: how to tell if your car has a loose gas cap—or a serious engine problem.

You know it's going to be a bad day when your car struggles to start or the check engine light comes on. It can cost $200 at the dealer just to have the problem diagnosed.

The costliest check engine-related repair in CarMD’s database is a complete engine replacement at $7,150. Other most-expensive repairs involve replacing the electronic power steering control ...

Since an engine can suffer severe damage if it’s run too hot, you should certainly be concerned if there are indications the engine is overheating. But those indications may not be as clear-cut ...

Here are the 10 vehicles that required the fewest check engine light-related trips to the repair shop over a 12-month period: 2018 Toyota Tacoma 2015 Honda CR-V 2018 Toyota Camry 2017 Honda Accord ...

If the check engine light is illuminated on your 2023 or 2024 GMC Canyon or 2024 GMC Sierra 1500 pickup truck, GM has discovered a loose wiring connection that may be the culprit, rather than a ...