Unveiling 2012 Chevrolet Equinox Problems: From Engine Troubles to EVAP Issues

In this article, we’ll discuss the top issues and repairs associated with the second-generation Chevy Equinox. While these problems are not unique to this vehicle, it’s essential for Equinox owners to be aware of them.

Engine Options

The second-generation Equinox comes with different engine options, including a 2.4L four-cylinder and 3.0 or 3.6L V6 engines. The V6 engine, in particular, is prone to timing chain issues, which is identical to the ones found in the Cadillac CTS.

Timing Chain Problems

The timing chain synchronization is crucial for the proper functioning of the engine. Over time, these timing chains can stretch, causing a misalignment between the crankshaft and the camshafts, leading to potential issues and triggering a check engine light. Regular oil changes and maintenance can help prevent or mitigate this problem.

Oil Consumption in Four-Cylinder Engine

The four-cylinder engine in the Equinox is known for oil consumption. Checking the oil regularly and inspecting the PCV system are crucial in managing this issue. Oil leaks, particularly from the rear main seal, are also common and may require attention.

Variable Valve Solenoids

The four-cylinder engine may experience issues with the exhaust and intake variable valve solenoids, potentially leading to stalling or triggering specific engine codes. Regular maintenance and prompt replacement of faulty parts can help address this problem.

Throttle Body and Accelerator Pedal Position Codes

Codes related to the throttle body and accelerator pedal position may indicate a need for inspection and potential replacement of sensors or wiring. These components are critical for engine performance and should be regularly checked for any signs of damage or malfunction.

Evaporative Emission Control System (EVAP) Issues

An EVAP code can often be attributed to a loose or faulty gas cap. Additionally, the purge solenoid in the EVAP system may require attention and possible replacement to ensure proper functionality.


These are some of the common problems and repairs that owners of the second-generation Chevy Equinox may encounter. Regular maintenance, timely inspections, and addressing any issues promptly can help in keeping the vehicle in good working condition.

What are some common issues with the second-generation Chevy Equinox?

Some common issues with the second-generation Chevy Equinox include timing chain problems in the V6 engine, oil consumption in the four-cylinder engine, exhaust and intake variable valve solenoid issues, throttle body and accelerator pedal position sensor problems, and potential evap system codes.

How can I identify timing chain issues in the V6 engine?

If the vehicle sets a check engine light with codes related to engine or camshaft position performance, it’s advisable to check the timing chains for wear or stretching.

What maintenance can help prevent timing chain issues?

Regular oil changes and maintaining proper oil levels with high-quality oil can help prevent timing chain issues in the V6 engine.

How does oil consumption affect the four-cylinder engine?

The four-cylinder engine of the Chevy Equinox is known for burning a significant amount of oil. Regular oil checks and inspections of the PCV system are recommended to monitor oil consumption.

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