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 ...

Upon first acquiring our 4.0L-equipped '01 Jeep Wrangler TJ, we were extremely impressed with its on- and off-road performance. The six-cylinder mill pushed the stock-size tires anywhere we wanted to ...

Engine swaps have been a part of the Jeep community since the first flatfenders landed in civilian hands. That’s because Jeepers are consummate gearheads and hot rodders, and seldom settle for “stock, ...