Coolant is supposed to stay in a sealed loop. If you're topping off your Edge every few weeks and can't find a drip, take it seriously. On this particular engine, "where did it go?" has an expensive answer more often than it should.
Which Edges are in the danger zone
The second-generation Edge (2015-2024 in the US) offered a 2.0L EcoBoost four-cylinder alongside V6 options, including the 2.7L EcoBoost on the Sport and ST. The coolant intrusion complaints center on the 2015-2018 2.0L EcoBoost. CarComplaints' page for the 2016 Edge alone lists 278 NHTSA engine complaints.
The *Miller v. Ford* class action in federal court in California lumps the 2015-2018 Edge together with 2013-2019 Escape and Fusion and 2016-2019 Lincoln MKC and MKZ models using 1.5, 1.6 and 2.0L EcoBoost engines. It alleges cylinder head seals let coolant into the cylinders. These are allegations, not findings, and Ford has not issued a recall for the Edge's 2.0L on this issue as of October 2026.
Signs coolant is getting into the engine
- Coolant level drops with no visible leak under the car
- "Engine Coolant Over Temperature" message, or the temperature gauge climbing
- Rough idle and a check engine light, often with misfire codes like P0301 to P0304
- White, sweet-smelling smoke from the exhaust, especially on a cold start
- Loss of power, particularly on hills
Two owners quoted by CarComplaints describe exactly this: low coolant, a misfire on one cylinder, a pressure test showing coolant in the cylinders, and engine replacement quotes of $8,300 and $8,447.54.
Not every coolant loss is the bad one
Before you assume the worst, rule out the normal stuff. Radiators, hoses, thermostats and water pumps all fail on any car, and they're much cheaper.
| Repair | Edge years | RepairPal estimate |
|---|---|---|
| Thermostat | 2011-2015 | $774 to $848 |
| Thermostat | 2020 | $546 to $626 |
| Thermostat | 2022-2024 | $498 to $601 |
| Water pump | 2013-2015 | $1,945 to $2,595 |
| Water pump | 2021-2024 | $500 to $650 |
| Radiator | 2015 | $2,065 to $2,350 |
| Radiator | 2020-2024 | about $1,723 to $2,145 |
| Engine replacement (2.0L coolant intrusion) | 2015-2018 | Owner quotes of $8,300 to $8,447 (CarComplaints) |
Notice the big jump on older water pumps. The 3.5L V6 used in many earlier Edges has its water pump inside the engine, driven by the timing chain. Ford Authority reported on a lawsuit over that design (it was later dismissed) and noted that owners often see no leak at all, the first sign is usually overheating, and some were told to replace the whole engine.
How a shop should diagnose it
Ask for a cooling system pressure test and a combustion leak (block) test. If those point inside the engine, a cylinder leak-down test or borescope can confirm coolant in a cylinder. A good shop will also check the oil for milky contamination. Don't let anyone sell you an engine based on a guess.
What to ask before you pay
- "Did the pressure test show an external leak, or is coolant going into the cylinders?"
- "Which engine does my Edge have?" (2.0L, 2.7L or 3.5L)
- "Is any of this covered by my powertrain warranty or a Ford goodwill program?"
- "Is the replacement engine a new Ford long block, a reman or a used engine, and what's the warranty?"
- "Can I see the codes and test results in writing?"
Repair or replace?
If it's a hose, thermostat, radiator or a newer-model water pump, fix it. Those are normal repairs on a car worth keeping. If the diagnosis is coolant intrusion on a high-mileage 2015-2018 2.0L, do the math: an $8,000-plus engine in a car that may be worth less than that is hard to justify. Get the trade-in or private-sale value as-is first, then decide. And if you do replace the engine, ask about the warranty on the replacement in writing.
See more on the Ford Edge repair page. Brake pedal feeling soft too? Check our Edge brake hose recall and brake cost guide. Prices checked October 14, 2026.
