Nissan Repair Questions? Ask a Mechanic for Answers ASAP
whats the temp on that with a thermometer or digital temp gun? also have you performed a head gasket combustion gas check?
correct, you may have some misleading information from a sensor and would double check everything to make sure it is working properly.
it could be sucking air though the system and or it could be having other issues such as a head gasket which is more likely