sounds like the heater core is out or you have an air bubble in the cooling system
Even though you have already replaced the thermostat, there are other issues that can cause your Nissan Maxima to overheat. Your fan may be stuck and not operating as it should.
If your thermostat is showing a blank screen even though it has no batteries, it could be due to a power issue. Check if the thermostat is properly connected to the power source or if there is a problem with the wiring. It is also possible that the thermostat itself is malfunctioning and may need to be replaced.
The heat may still be on even though the thermostat is off due to a malfunction in the thermostat, a wiring issue, or a problem with the heating system itself. It is important to troubleshoot and address the issue promptly to prevent energy waste and potential safety hazards.
A 2001 Mitsubishi Spyder will experience overheating even though the fluid is good and the fans are working if the thermostat is stuck. A stuck thermostat will prevent coolant from circulating and will quickly overheat the engine.
There could be several reasons why your boiler is not producing hot water even though it is working. Some possible causes include a malfunctioning thermostat, a problem with the heating element, airlocks in the system, or a buildup of limescale in the pipes. It is recommended to contact a professional technician to diagnose and fix the issue.
Maybe you need a freon boost.
sounds like a bad thermostat even though it is replaced
There may be a problem with the thermostat or heating element in your electric oven, causing it to continue heating even when turned off. It is recommended to have a professional technician inspect and repair the issue to ensure safe operation of the appliance.
you may need new water pump the cooling fins wear out a common cause.
A thermostat is a device that controls the temperature of an operation / device e.g. in an electric iron the thermostat disconnects the electric supply to the heating coilwhen the set temperature is reached , thus saving electrical energy. The thermostat itself does not emit any CO2 , though you could say that in its own manufacture energy was spent and hence some CO2 was emitted . This is called embedded CO2 and is generally not considered to be significant.
I just replaced the thermostat housing on my magna TR -91 model and that was on the left hand side just behind the head and underneath a whole pile of hoses- its a pig of a spot to get to - not as bad as the timing chain though.
You're Thermostat may possibly be stuck in the closed position, therefore not allowing coolant (water/antifreeze) to pass through to the engine. Basically check your thermostat is working.