CPC 4: Troubleshooting Common Issues 🔧🚚 CPC 4 controllers, commonly found in Freightliner and other Detroit-powered trucks, can sometimes experience glitches that affect throttle response, communication, and gauge functionality. Here are some of the most common CPC 4 issues: -No throttle response: The engine doesn't respond to pedal input. 🚫🚛 -No communication: The controller loses communication with the ECM or other components. 🔄🔌 -No start: The engine won't crank or start. 🚫🔑 -Random g

Having trouble with your CPC4?🔧 These units, typically found in Freightliner trucks with Detroit engines, but also in Oshkosh, Terex, and Pierce trucks equipped with Detroit engines. These often have issues with no communication, no start, or throttle response. ⚠️🔋Currently, we’re fixing one with a throttle response problem and another with no communication/no start. 🔄🔍If you’re facing CPC4 problems, drop your issue in the comments! 💬👷‍♂️ Want to learn more about CPCs and ECMs? Follow me f