The 1.6 EcoBoost's open-deck block cracks under sustained load — bad enough that it drew a class action in 2020. We confirm the failure properly and do the complete repair in your driveway.
The 1.6 EcoBoost carries the same open-deck architecture as the other small EcoBoosts, and it fails hardest under sustained load — towing, highway hills, hot-day climbs. The unsupported cylinder walls flex under boost and heat until the deck cracks or the head gasket gives way, opening a path between the cooling system and the combustion chambers. The failure pattern was widespread enough that owners filed a class action against Ford in 2020.
Once coolant reaches a cylinder, you get the classic signature: overheating that seems to come from nowhere, coolant loss with no external leak, white steam out the exhaust, and misfires marching through codes P0301 to P0304 as plugs foul. Under load it compounds — the harder the engine works, the more pressure differential drives coolant through the breach, which is why owners often first notice it towing or pushing through traffic on a hot day on the QEW.
An overheated aluminum engine adds its own damage on top: warped head decks, crushed gaskets, sometimes scored bores. The repair has to be matched to what testing finds — head and gasket service if the block is sound, short block if the deck has cracked. Guessing wrong in either direction wastes thousands, which is why we test before we quote the repair path.
If your Ford is doing any of these, this is the likely cause:
Every overheating event on an aluminum engine compounds the damage — heads warp, gaskets crush, and what started as one breach becomes several. Coolant in the oil attacks bearings at the same time. A 1.6 caught at the first overheat is usually repairable; one driven through a summer of 'just top it up' often isn't. Stop driving it and get it tested.
Yes — it's a core part of what we do. The vehicle stays parked at your home for the duration, we bring the equipment, parts and fluids, and we secure everything between sessions on multi-day work. You skip towing an overheating car across the GTA and skip the shop queue entirely.
Because a cracked deck means a replacement short block — a major part plus days of labour at dealer rates — and many dealers quote that path by default. The right answer depends on testing: an intact block needs a much smaller repair. We test first, then quote one flat price for the complete correct repair before anything is opened up.
The 2020 class action established how widespread the failure is, but for most Canadian owners it doesn't translate into a free repair today. It's worth a call to Ford with your VIN to check for any goodwill coverage — we'd rather you exhaust that first. If the answer is no, we fix it at your home.
That delays the symptom, not the failure. The breach is already there; load just pushes more coolant through it faster. Light driving still cycles heat through the crack and still pulls coolant into the cylinder overnight. Reducing load buys you days to schedule the repair — it isn't a fix.
Send it over for a free second opinion. I'll tell you straight what the job actually involves — and if their quote is fair, I'll tell you that too.
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