Awasome Check Engine Light Coolant References. When the coolant is too low to effectively protect the internal temperature of. Causes of ect fluctuation here are the significant causes of engine coolant.
This is a common problem that can be caused by a few different things. Web the check engine light still on after filling coolant is usually due to a compromised coolant level sensor (it could be faulty or stuck). If it is, then there might be another issue causing the check engine light.
