Toyota car and truck forums

I'm searching for the thermostat on my daughter's 1999 corolla. Is it located directly behind the passenger's side headlight or some other place? Thanks for your help.

Located next to the alternator. Just follow the radiator hose to the housing on the front of the engine, right by the intake runners. You'll know you are looking at the houses, as there is an coolant temperature switch and associated wiring running to the top of the housing.