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Pull the connector off the reservoir and make sure that coolant isn't seeping into the connector pins. Make sure the coolant level is correct.
Make sure that your fans are turning on when you get to operating temperature- or turn on your A/C, fans should always be on when A/C is on.
Does the temperature gage reading a high temperature along with the temperature warning light blinking as well absolutely mean its overheating? Also keep in mind this happens periodically with the warning light and the temperature needle not showing that.
Thanks checked the coolant and that's what it was level was really low.