Why is my coolant temp going down?
Let’s start with over and under heating. A thermostat stuck in the open position will allow a constant flow of coolant causing a lower operating temperature. Low coolant, a clogged radiator, bad water pump, and a handful of other things could all be a potential issue.
Why is my Toyota Avensis overheating?
One of the most common reasons that a vehicle overheats is a bad thermostat. If your radiator overflow is full (and you radiator fan is kicking on), it is very likely that a bad thermostat or bad water pump are causing your Avensis to overheat. Of these two, the thermostat fails more often than the water pump.
Why is my engine temperature gauge not working?
The most common cause of faulty temperature readings is a broken coolant temperature sensor (CTS). The part, which is normally located near a vehicle’s thermostat near the base of the radiator (consult your owner’s manual or repair guide) can get gunked up and fail. Disconnect the temperature sensor’s wiring connector.
What to do if your Toyota Avensis heater stops working?
At this point, the blower motor blows air across the it and the newly heated air blows on to the driver and passengers. If the heater has stopped working in your Avensis, this process has failed in one way or another.
What does the thermostat on a Toyota Avensis do?
Never touch the radiator cap unless the vehicle is ICE COLD. The job of your Avensis’s thermostat is to regulate the temperature of the engine. It does this by allowing water to enter the engine when it is getting hot, and by keeping coolant from entering while the vehicle warms up.
Why is my Avensis air conditioner not cold?
Most of the time, when your Avensis’s air isn’t blowing cold enough, it is going to be a lack of refrigerant causing the problem. We recommend having a professional recharge your A/C if it does end up being a coolant issue. If you put too much coolant into the system, you can really do some damage.