2016 Chevrolet Equinox engine problems

Filed Oct 5, 2026 · Engine · MI

I am filing this complaint regarding a safety-related engine problem with my 2016 Chevrolet Equinox. My vehicle is currently experiencing excessive crankcase pressure associated with the PCV system. The vehicle requires PCV service, and I have been advised that the excessive crankcase pressure has contributed to multiple engine oil leaks, including a timing cover leak and front main seal leak. I am concerned that the underlying PCV/crankcase-pressure problem is causing or contributing to these failures rather than these being isolated gasket or seal failures. Excessive crankcase pressure can force engine oil past seals and gaskets, resulting in significant oil loss. This creates a safety concern because an engine oil leak can worsen suddenly and result in substantial loss of engine oil, potentially causing engine damage or engine failure while the vehicle is being driven. Oil contamination of the serpentine belt is also concerning because it can affect the belt's ability to operate properly and may result in belt failure and loss of engine-driven components. I believe the PCV/crankcase ventilation issue should be investigated as a potential underlying defect in the 2016 Chevrolet Equinox. I am requesting that the federal safety agency investigate whether there is a recurring safety defect involving the PCV system, excessive crankcase pressure, resulting oil-seal/gasket failures, and associated oil contamination in these vehicles. I am also concerned that owners may be required to pay for multiple repairs to correct the consequences of an underlying PCV/crankcase pressure problem. The vehicle is currently in need of repair for the PCV system, excessive crankcase pressure, front main seal, timing cover gasket, and oil-contaminated serpentine belt. The timing chain may also require replacement depending on the inspection and extent of damage. Documents are included.

Filed Oct 3, 2026 · Engine · IA

Timing chain guide broke and caused catastropic engine failure while driving 70 miles an hour on the highway causing steering, brakes etc to lock up putting me and my family at risk of accident and great bodily harm. Vehicle is available for inspection. No prior knowledge of mechanic problems due to only having purchased the vehicle from Mac's Chevrolet 4 months prior. Have since learned of the oil consumption issue associated with this year equinox which likely contributed to the timing chain failure. Vehicle has been inspected by two independent mechanics. This vehicle completely locking up on the highway at this speed could have killed us all if near another vehicle or semi.

Filed Aug 22, 2026 · Engine · MI

In February of 2025, while driving my 2016 Chevy Equinox home from work, I heard a loud pop and loss of engine power a block from home. The weather conditions at the time were below freezing and light snow. After getting my vehicle home, my neighbor, who works for GM looked under my Equinox and discovered the rear main oil seal had blown and informed me this was a known issue with the GM 2.4L Ecotec engine. The GM 2.4L Ecotec engine contains a non‑serviceable Positive Crankcase Ventilation (PCV) system that uses a fixed orifice built into the intake manifold instead of a replaceable PCV valve. In cold weather, moisture and vapor inside the crankcase can freeze or accumulate as sludge within this orifice. When the orifice becomes obstructed, the PCV system can no longer vent crankcase gases properly, causing internal pressure to rise significantly. This condition is most common in sub‑freezing temperatures and is documented in multiple GM technical bulletins. When crankcase pressure increases beyond normal operating limits, the pressure seeks the weakest escape point, which is often the rear main seal. As pressure builds, the rear main seal can rupture suddenly, resulting in an immediate and severe oil leak. This failure can occur without warning and may lead to rapid oil loss, environmental contamination, and potential engine damage if the vehicle continues to operate. The defect is inherent to the PCV system design and is not related to owner maintenance practices. General Motors has been aware of PCV system obstruction issues in the 2.4L Ecotec engine since at least 2013, when internal service bulletins first documented rear main seal failures caused by crankcase over‑pressurization in cold weather. GM issued additional bulletins in 2014, 2016, and 2019, each reiterating the same failure mechanism. In 2014, GM created Special Coverage Adjustment 14882 but many vehicles equipped with the same engine and PCV design were not added, including mine.

Filed Jul 14, 2026 · Engine · CA

: "I live in my car. The 2016 Equinox 2.4L burned all its oil in 2 weeks with no leaks, failed to give a dashboard warning, and the engine is now knocking, threatening to leave me unsheltered." This ties my vehicle's specific failure to the federal database for future legal payouts.

Filed May 15, 2026 · Engine · NY

I started up my car on a cold winter morning and I heard a loud popping noise. I backed up my car minutes later and discovered puddles of oil in front of me in my driveway. I asked my husband to come out and look. He got under the car and said my oil blew out of the rear seal. I was unable to drive my car as the seal was blown. After some investigating I discovered it was the PCV valve that froze and blew out the rear seal. I discovered that Basil Ford was sent this Bulletin and told to clean the PCV valve when people brought their car in. They never reached out and told me to bring the car in to have this done. It could have been an easy fix. I also discovered by researching that people had this happen to them when they were driving on the highway and it caused them accidents. I called GMC and they are telling me my 2016 isn't in the class action suit. Basil wanted way too much money so I took it to Pep Boys and it cost me $3,000 to have the PCV valve replaced with the kit that prevents it from freezing up again and I had to replace my manifold and my rear seal

Filed May 1, 2026 · Engine · SC

Around 100,000 miles car started burning through oil. Have to check oil weekly. No warning lights come up when the oil is low. Patiently waiting for them to put a recall on it.

Filed Apr 7, 2026 · Engine · MO

Excessive oil consumption with no warning light, loss of power, and stalling. Also caused the master seal to leak and plugged the PCV valve. I have records for the repairs. It continues to excessively use oil and is not a reliable vehicle. When it stalls, power steering is lost as well as the stabilitrack.

Filed Mar 9, 2026 · Engine · MO

engine constantly eats oil, no oil leak

Filed Feb 20, 2026 · Engine · FL

Engine failure. There is a class action that has been filed for this exact make, model, and engine size. There were no lights indicating an issue and the car had recently been serviced with an oil change and oil filter change and was being regularly maintained on oil changes. When it was brought to a mechanic, they told me the entire engine had failed and there was no power to one of the spark plugs anymore. I reached out to GM regarding this and they acknowledged the failure

Filed Feb 6, 2026 · Engine, Wheels · VA

Transfer case and front differential failure. No warning lights came on beforehand