Chevrolet Equinox
2.4-liter Ecotec direct injection with flat chain drive and VVT. Power and economy look fine on paper, infamous in practice for worn low-tension oil control rings starting around 50,000 mi. Forty-two million dollar class action settlement for this exact piston ring story. Buying the engine means buying the risk.
The forty-two-million-dollar oil burner
The 2.4L Ecotec is the reason GM paid a $42 million settlement. Cheap low-tension rings, early timing chain stretch, and if you miss an oil check once the engine eats itself. Drives slow, sounds strained, feels like work. A grocery hauler for people who had no other choice.
Engine Weaknesses 3
2.4L Ecotec LAF/LEA suffers worn low-tension oil control rings. Burns up to one quart per 1,000 miles. Subject of a $42M class action settlement.
Symptoms: Blue smoke on cold start, low oil between changes, cylinder 2 misfires, oil warning
The 2.4L Ecotec timing chain stretches early, often before 110,000 mi — especially when oil burn is ignored and the engine runs low on oil.
Symptoms: Cold start rattle, P0008/P0017 codes, power loss, check engine light
Water pump and thermostat housing on the 2.4L Ecotec develop leaks with age. Gradual coolant loss typical after 80,000 mi.
Symptoms: Coolant loss, wet spots under engine, overheating in hot weather
Vehicle Weaknesses 6
NHTSA investigated 781,000 Equinox/Terrain 2010–2012 for sticking steering. GM replaced steering gear via service bulletin, no formal recall.
The 6T45/6T70 6-speed shows flares on 2-3 and 3-4 shifts caused by AFL accumulator bore wear and debris blocking channel plate passages.
The A/C compressor internally locks up. Engine stalls when A/C is engaged, belt chirps on startup, often preceded by grinding noise.
Faulty wheel speed sensors trigger StabiliTrak/ABS warnings. Especially vulnerable in winter from salt and moisture.
Front wheel hub bearings on the GMT172 wear noticeably early. Hum starts around 80,000 mi, often both sides within months of each other.
Blend door actuators on the second generation fail as early as on Gen 1. Clicking behind the dash, temperature cannot be regulated.