OBD Auto Doctor app reads car diagnostic codes for $15 total cost versus $150+ dealer visits, turning check engine light ...

When the check engine light comes on in a vehicle, it’s indicating that there is some issue with the car that should be checked out. It could be something minor, such as the gas cap not being screwed ...

It glows on your car’s dashboard and instantly ignites terror and loathing in the hearts and wallets of drivers; the dreaded “Check Engine” warning light. For ...

When your vehicle's check engine light (CEL) comes on, it's often a sign that something needs attention. But with over 20,000 parts working together in your car — many important for normal operation — ...

A car can be compared to the human body and may need diagnostic tests very often. For humans, when a patient consults a doctor about a symptom, the doctor runs a medical diagnostic test to ascertain ...

Don't ignore what your car is trying to tell you. Here are four critical indicators that your card engine is on the verge of ...

The costs of buying a new or used car have climbed in recent years, and so has the average repair bill. If a vehicle purchase or major repair isn’t in the cards (or budget), maintaining the health of ...

In the last Diagnostics episode, we outlined the vital information provided by compression and leakdown testing and illustrated how to use these most important tools. These tests reveal the internal ...

Here's What Your Car's Dashboard Warning Lights Mean—And How Long You Have Until It's a Big Problem! Here's Why You Really Shouldn't Have Bumper Stickers on Your Car (Hint: It's About More Than Just ...

Forbes contributors publish independent expert analyses and insights. Jim Gorzelany is a veteran automotive journalist. You’ll usually know when it’s time to take your car, truck or sport-utility ...