The Malibu / Chevrolet Coolant Temperature Sensor is a critical engine management component used on GM L-series platforms including LY6, L96, LS3, and LSA engines. This sensor monitors engine coolant temperature and sends real-time data to the ECM, helping optimize fuel mixture, ignition timing, cold-start performance, and engine protection strategies.
Built with marine-grade materials and OEM-spec threading and sealing, this sensor ensures reliable performance in demanding marine environments. A failing coolant temp sensor can cause hard starts, poor fuel economy, inaccurate temp readings, or engine warning codes—making timely replacement important for peak engine health.
Key Features:
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Direct replacement for GM L-series marine engines
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Accurate temperature feedback to ECM
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OEM-style connector and thread fitment
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Helps prevent overheating and performance issues
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Marine-ready durability and sealing
Common Symptoms of Failure:
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Erratic temperature gauge readings
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Check engine light
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Hard cold starts
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Rich or lean running conditions
Fitment:
Compatible with GM-based LY6, L96, LS3, and LSA marine engine applications (including Malibu Monsoon platforms where applicable).
