How do you repair head gasket on 1997 Toyota T100?

To repair the head gasket on a 1997 Toyota T100, first, remove the engine components obstructing access, including the intake manifold and valve covers. Then, drain the coolant and oil, and carefully unbolt the cylinder head to inspect for warping or damage. Clean the surfaces thoroughly before replacing the old gasket with a new one, ensuring proper alignment. Reassemble the engine, refill fluids, and conduct a leak test to confirm the repair was successful.