2019 Toyota Avalon Engine: 2.5L L4; Coolant Temperature Sensor; Located on water outlet;. 2022 Toyota Avalon Engine: 2.5L L4 FULL HYBRID EV-GAS (FHEV); Coolant Temperature Sensor;. 2020 Toyota Avalon Engine: 2.5L L4; Coolant Temperature Sensor; Located on water outlet;.
