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.

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.

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 ...

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 ...

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 ...