2005 Ford Five Hundred Multiple Misfire Codes: P0300, P0303, P0306, P0354, P0355, P0356 and P2544 - Troubleshooting Guide

Model: 2005 Ford Five Hundred Fault Code: P0300 Posted: 2012-02-25 16:43

My 2005 Ford Five Hundred with a 6-speed automatic transmission and 3.0 L 6-cylinder engine is showing multiple misfire codes: P0300, P0303, P0306, P0354, P0-355, and P0356. The vehicle runs very rough but can still start and drive. Additionally, I have a P2544 code, which has a Technical Service Bulletin (TSB) available—however, the TSB recommends addressing all other misfire codes before resolving this one. I'm looking for clear guidance on where to begin troubleshooting these issues.