Ford replaces turbo because of pre-ignition detonation
DEAR DOCTOR: My 2015 Ford Fusion with the 2.0-liter turbocharged engine is at the local Ford dealership for a new engine, due to a piston breaking from a low speed pre-ignition incident. Luckily, the failure occurred at 59,000 miles, so the new engine is covered on the 5-year/60,000-mile powertrain warranty. What do you know about this issue? I’m told it’s pretty much unique to turbocharged direct-injection engines? — John DEAR JOHN: Pre-ignition engine detonation can cause major engine failure. There are many potential factors involved in causing this problem. On older ...