We earn commissions from purchases you make using links in our articles. Learn more. If your car or truck’s check engine light is on, there’s a stumble when accelerating, or if the transmission just ...

Q: I am shopping for a used car. What do you think about bringing along a computer scan tool to test the car before buying it? Do you think the dealer or private seller would mind? A: I think scanning ...

If your car or truck’s check engine light is on, there’s a stumble when accelerating, or if the transmission just isn’t ...

️ Editor's note: This product category requires new testing about once a year. We'll update this article with the most recent information when it's available. Modern cars are technological marvels, ...

Q: You have mentioned a scan tool that was not overly expensive but bordered on something a professional would use. What kind was it? When I look online, there are many to choose from. A: Innova ...