Dodge Durango 2008 5.7L: P3425 Fault Code and Cold Start Engine Vibration Explained
I'm experiencing two issues with my 2008 Dodge Durango 5.7L engine. First, the vehicle is displaying fault code P3425. I would like to know whether this code can cause long-term engine damage or impact performance. Second, when starting the car in cold weather and driving for approximately 2 to 3 minutes, the engine begins vibrating intensely—often causing a noticeable whole-body shake. This vibration forces me to shut off the engine and restart, which temporarily resolves the issue. The problem does not occur during summer months. I'm seeking expert advice on both issues, especially the cold-start vibration that is particularly concerning.
P3425 is a known OBD2 fault code related to the engine's fuel pump control circuit. For your 2008 Dodge Durango 5.7L, this code may indicate an issue with the fuel pump control signal or wiring, and while it doesn't always cause immediate engine damage, prolonged unresolved issues can affect fuel delivery and performance. Refer to https://www.obd-codes.com/p3425 for detailed technical information.