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How to Replace Thermostat 1997-2005 Lexus GS300

Created on: 2019-12-20

The thermostat controls the flow of coolant in your vehicle’s engine. When a thermostat fails, it can lead to overheating, which will damage the engine. One sign of a faulty thermostat is a cool upper radiator hose when the engine is at full operating temperature. It’s important to replace the thermostat immediately if you suspect it is failing. How to install a new TRQ thermostat in your 1997-2005 Lexus GS300.

Tools needed

  • Razor Blade / Gasket Scraper

    Torque Wrench

    Rubber Mallet

    Silicone Paste

    Hose Clamp Pliers

    10mm Socket

    Coolant Vacuum Filler

    Drain Pan

    Ratchet

    Cloth Rags

    1/2 Inch Impact Gun

    Coolant Funnel Set


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