Answer
Jun 12, 2025 - 04:50 PM
The two different colors on your new camshaft VVT (Variable Valve Timing) solenoids—gray and black—typically indicate intake and exhaust positions. For your 2015 Chevy Equinox with the 2.4L Ecotec engine, this color distinction is standard.
Here’s the breakdown:
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Gray VVT solenoid = Intake camshaft
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Black VVT solenoid = Exhaust camshaft
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Installation clarity: It helps mechanics (and DIYers) avoid mixing them up, as installing the wrong solenoid in the wrong position can cause timing issues or performance problems.
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Different tuning: Though they look similar, intake and exhaust solenoids often have slightly different calibrations or part numbers because they manage different timing events.
When looking at the engine from the front of the vehicle (hood open):
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The intake solenoid (gray) goes in the rear (closer to the firewall).
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The exhaust solenoid (black) goes in the front (closer to the radiator).
Always double-check with your vehicle’s repair manual or part numbers, but the color distinction is a commonly accepted guide for the 2.4L Ecotec engine. Let me know if you’d like torque specs or a diagram! Hope this helps!
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