Chevrolet Cavalier oil light activates after prolonged driving with A/C on on Chevrolet Cavalier

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Chevrolet Cavalier owners report experiencing the activation of the oil light after prolonged driving with the A/C on, which may indicate several underlying issues. These include low oil levels due to leaks or consumption, which can trigger the oil light. Additionally, a faulty oil pressure sensor that is damaged, dirty, or unplugged may activate the light even when oil pressure is adequate. Some owners also find that a worn or damaged oil pump fails to provide sufficient oil flow, leading to low oil pressure and the oil light's activation. Clogged oil passages can restrict oil flow, causing a drop in pressure that triggers the warning light. Lastly, electrical issues within the oil pressure system may also contribute to this problem. It is advisable for owners to check the oil level, inspect the oil pressure sensor, ensure proper oil pump function, and examine for any blockages in the oil passages to address these concerns effectively. Regular maintenance, including timely oil changes, is essential to prevent such issues and maintain the vehicle's performance.

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