Vehicle Questions and Answers
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Why does the check engine light on my Chevy Cruze keep blinking?
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6 answers
★ Top Answer
The check engine light in your Chevy Cruze is a signal that can be activated by various systems in the car. The emission system and ignition system are the main reasons for this warning to appear, with ignition issues being the most frequent problem in a Cruze. Common issues that can trigger the check engine light include misfires, faulty fuel injectors, and low-quality fuel. A misfire happens when fuel goes unburned and exits the engine, potentially causing damage to the catalytic converter. Defective fuel injectors or fuel quality can not only trigger the light but also impact the car's performance.
More answers
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There are several reasons why the check engine light might start flashing on a Chevy Cruze, but in many instances, it's related to the ignition system, which includes the ignition coil packs, spark plug wires, and spark plugs.
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My 2014 Chevrolet Cruze has been giving me trouble from the beginning with the check engine light randomly coming on. Initially, the code was P0420 for the catalyst, followed by issues with misfiring and the O2 sensors. I've tried replacing various parts like the valve cover, intake, turbos, exhaust components, O2 sensors, spark plugs, coils, water pump, inlets, outlet, exhaust manifold, EVAP solenoid, and purge valve, but the check engine light still persists with the P0420 code even after resetting it countless times. There's also a strange smell sometimes when I start the car. Should I give up on it and consider junking it?
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Go to a large auto parts store and ask them to retrieve the error codes from your car. This service is typically offered for free. Afterwards, research the codes online to learn about possible reasons and solutions.
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Is it possible for issues with the transmission to be the reason why the engine light blinks?
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Inspect for firing issue due to faulty spark plug.
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