The powertrain control module (PCM) is the brain behind your vehicle’s engine and transmission, but diagnosing it can be tricky. From spotting symptoms to verifying electrical integrity, a methodical ...

The problem: Piston rings may rotate and align in certain Honda cars. If this happens, uncontrolled oil burning may occur inside the engine, causing it to misfire. This may be due to faulty piston ...

The powertrain control module (PCM) in your Jeep Wrangler – often referred to as your engine’s “computer” – acts as the brain of your vehicle’s engine. More specifically, the PCM in your Jeep is ...