Has anyone had any experience with replacing the converter box on a 99 QX4?
What is your question?
With acceleration my 99 infiniti QX4 will make a loud metal rattling sound from under the center front of the car. My best guess is the converter box? Any help pretty please?
RepairPal Certified shops can diagnose and repair your 1999 INFINITI QX4. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Before replacing the expensive catalytic converter we would strongly recommend that you verify the source of the rattling - either yourself or at a shop.