had codes PO171 and PO174 come up on a scanner. replaced the intake manifold gasket and the check engine light comes back on within 3 miles of driving it. The idle sems a bit low but other than that it runs OK. I need the light off for emissions..please help !!!!
RepairPal Certified shops can diagnose and repair your 2003 Mercury Sable. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.