Malibu 2001-2005

Coolant Temperature Sensor

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2.2L (L61) Engine



The Engine Coolant Temperature (ECT) sensor is located just to the left of the exhaust manifold in the thermostat housing between the two coolant pipes.

3.5L (LZ4) & 3.9L (LZ9) Engine



The Engine Coolant Temperature (ECT) sensor is located on the left cylinder head at the rear. It is just above the transaxle mounting bolts.

 
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