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Ford 3.5L Ecoboost Motor -- Timing Chain Pattern Failure. Timing chains on this motor stretch prematurely and are EXPENSIVE to replace. On three occasions, Ford has acknowledged timing chain problems on this motor via technical service bulletins (TSB 14-0194, TSB 15-0131, and TSB 16-0027). Each bulletin contains specific explanation of the problem with a detailed, long listing of parts needed to correct the apparent defect. Repair Cost was $2634.44, which Ford did not cover. REPEAT: Ford has published guidance for and is fully aware of repeated problems with the timing chain mechanism on this motor and is making a healthy profit from repairs at customer expense. On my vehicle, mileage-based warranty coverage for this issue just barely expired. I also had an extended warranty which expired three months prior (I had low miles for the model year).
- Jason K.,
San Antonio, US