Cosbool

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I found a pic of engine. And I believe No.2 is the thermostat that you replaced. Am I right? Thank you.

Thank you for the information. The water control valve that mechanic was talking about is I guess those one of the thermostat that you mentioned. May I ask you the where the thermostats located and How did you replace it ? Mine has overheating issue very high not slightly. Thank you.

Hey guys. I have a questiin. I have a 2002 infiniti qx4. It has overheating issue. While I was driving, I was reving around 5000rpm and suddenly, I felt engine power is all gone for a sencond. After that, coolant was come off from reservoir line and having overheating issue. I replaced a thermostat, radiator cap. And I did air bleeding well, and heatercore bypass. But still issue. So I went dealership and they checked pressured on cooling system and they told me It seems water control valve problem. Here is my question. Does anyone know how to replace water control valve and where it is? Thank you and have a wonderful day.