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Where is the thermostat in a 1991 Toyota truck?

1. Open the hood of your 1991 Toyota truck.

2. Locate the thermostat's housing, which is located on the front side of the engine.

3. You can identify it by the metal pipe, which is connected to the rubber hose from the radiator.

4. Remove the two bolts holding the thermostat housing in place.

5. Pry the housing open and remove the thermostat located inside.