Check engine light came on. Ford dlrshp advised of internal trans. module failure. They reprogrammed the TCM and relearned Trans. Drive Strategy. Eng. light came on again. Where is the TCM? How hard is it to change? Damage if still driving it?
RepairPal Certified shops can diagnose and repair your 2009 Ford Mustang. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
