The 2.4L Ecotec four-cylinder in the 2010-2017 Equinox and Terrain (and the Buick Verano that shares it) is in this database for one reason: it drinks oil. Not a slow seep — a genuine burn that on a worn example runs a quart every 1,000 to 2,000 miles with nothing on the ground to show for it. The mechanism is the piston rings, specifically the oil-control rings. The design lets oil work past the rings and into the combustion chamber where it's burned off, and a PCV system that pulls oil vapor back into the intake makes it worse. None of that would be catastrophic on its own — plenty of engines use a little oil — except for the part that turns it dangerous: the consumption rate outruns the oil-change interval. An owner who changes the oil every 7,500 miles and never checks the dipstick in between is running the engine two or three quarts low by the end of the interval. Low oil on these means spun bearings, and a $400 oil-consumption problem becomes a $4,000 engine. GM knew. There was a class action (Sloan v. GM) over exactly this, and the Equinox and Terrain were the headline vehicles. The fix that actually works is a piston-ring replacement — heads off, pistons out, new rings, sometimes a new PCV setup. Done right it's $2,000-$3,500 and it solves it. Cheaper "fixes" — thicker oil, additives — just mask the burn. The other thing experienced GM techs watch on this engine is the timing chain; the 2.4 stretches chains on higher-mileage examples, which throws timing codes and adds another repair on top of the oil issue. If you're shopping a used Equinox or Terrain from these years, the oil consumption is the whole inspection. Run it, check the dipstick before and after, and ask the seller — flat out — how often they add oil.
GM 2.4L Ecotec (LAF/LEA/LUK) problems
7,577 owner complaints filed with NHTSA across 22 vehicle applications. 9 active recall campaigns.
Every vehicle in the 2.4L Ecotec family
Production span by model. The 2.4L Ecotec shipped roughly 2010-2017 across 3platforms we track.
Year ranges are curated editorial mappings of which vehicle generations carried this 2.4l ecotec. Color is per manufacturer.
Known issues
- Excessive oil consumption from worn/stuck oil-control piston rings — often a quart per 1,000-2,000 miles with no external leak
- PCV system design that pulls oil vapor into the intake, compounding the burn
- Low-oil-level engine damage when owners do not check between changes (the consumption outruns the oil-change interval)
- Timing chain wear/stretch as a secondary documented issue on higher-mileage examples
- Oil consumption class action (Sloan v. GM) covering the 2.4L Ecotec, centered on the Equinox and Terrain
Where the safety risk concentrates
Top problem categories across the 2.4L Ecotec fleet. Bar length is total complaint volume; the colored bands at the start of each bar are the share of complaints in that category that carried a crash, fire, injury, or fatality on the NHTSA record.
Affected vehicles Top 22 by complaint volume
Recent owner reports 8 most recent across the family
Oil leak caused by insufficient ventilation and excessive oil burning caused rear main seal and timing chain belts to fail. Oil warning systems were too late in warning about problem until engine stalled out and all oil was consumed, causing engine failure. No low oil warnings came up until minutes…
The blower fan for heat In my vehicle was replaced in October 2022, recently the Defroster will not engage and it is vital to winter driving. The mechanism that switches between which vent to blow out air was replaced and the Defroster will still not engage, rather it comes out of the heat and…
I just spent 1,600 dollars to replace the timing chain. I know their were recalls on this, I was wondering why my vin and model were not included in these recalls?
Engine failure due to excessive oil consumption. Timing chain failure causing major damage to engine, fuel pump failure, catalytic converter failure due to excessive oil consumption .
My family and I were driving on the highway and my engine stopped without any warning lights or notifications. We were able to safely coast from the left lane to the shoulder. We had the car towed to a nearby dealership. When they inspected my car they said there was no oil in in the engine and…
I bought my 2013 Chevy equinox in july of 2019, about a month after buying it my husband checked the oil and the oil wasnt even on the dipstick. After that we kept an eye on it and every week we have to put at least a quart of oil in the vehicle. We have brought it to our shop and have determined…
Common questions
What vehicles use the GM 2.4L Ecotec (LAF/LEA/LUK)?
The GM 2.4L Ecotec (LAF/LEA/LUK) was used across 22 model-year combinations from 2010-2017. The most-affected applications are listed in ranked order on this page. Each entry links to the full reliability profile for that specific year/model combination.
What are the most common problems with the 2.4L Ecotec?
The dominant complaint patterns are: excessive oil consumption from worn/stuck oil-control piston rings — often a quart per 1,000-2,000 miles with no external leak; pcv system design that pulls oil vapor into the intake, compounding the burn; low-oil-level engine damage when owners do not check between changes (the consumption outruns the oil-change interval). Across all affected vehicles in our database, 7,577 owner complaints have been filed with NHTSA, plus 9 active recall campaigns.
How serious are the 2.4L Ecotec problems?
Severity varies by model and year. Across the family, NHTSA records show 20 crash-related complaints, 4 fire incidents, and 10 injuries. Critical recalls on file: 0. Click into any specific vehicle below to see severity tied to that exact application.
Should I avoid vehicles with the 2.4L Ecotec?
Not automatically. The complaint data points to specific failure patterns that are well-understood, and many of them have known fixes — sometimes covered by extended warranty, sometimes by class-action settlement, sometimes by aftermarket service procedures. The right call depends on the specific vehicle, its maintenance history, and whether the known issues have been addressed already. Read the editorial above and click into the specific vehicle you're considering for the full picture.
Is an extended warranty worth it on a vehicle with the 2.4L Ecotec?
On engines with documented expensive failure modes, an extended service contract can pay for itself in one repair. Average independent-shop repair on an engine of this scope runs $2,500-$8,000 depending on what fails. A quality service contract is $1,800-$3,500 over 3 years. The math depends on the specific vehicle's complaint pattern, age, and miles. Use the calculator on the specific vehicle's page for a real estimate.
The 2.4 Equinox and Terrain are everywhere on the used market because GM sold them by the hundreds of thousands, and the cheap ones are cheap for a reason. A clean example with documented ring work, or one that genuinely doesn't burn oil on a consumption test, is a usable vehicle. One with an unknown history and a seller who "tops it off now and then" is a coin flip on whether the bottom end is already damaged. Treat a consumption test as mandatory, not optional, on this engine.