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Will The Check Engine Light Come On If The Coolant Is Low? [Solved]

If the level falls below a critical amount of coolant in the radiator or expansion tank (attached to the radiator via a hose or pipe), the sensor sends a signal to the vehicle’s onboard monitoring system which then turns on the low coolant warning light on the instrument panel in order to alert you of the issue.

Can Low Coolant Cause Check Engine Light?

If

Most Common Reasons Your Check Engine Light Is On

In this video you

Low Coolant Level May Cause Stop Engine Light and possible Derate your Freight Liner Cascadia

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