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GM trouble code P0125 indicates an insufficient coolant temperature for closed-loop operation, often caused by a faulty thermostat, a malfunctioning coolant temperature sensor, or low coolant levels. Code P0338 relates to a problem with the crankshaft position sensor circuit, which can result from a faulty sensor, poor wiring, or a bad connection. Both codes can lead to engine performance issues and should be diagnosed to prevent further damage.

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AnswerBot

1w ago

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