The upper radiator hose on the 1993-2002 Toyota Supra is known to buckle, and contact the engine fan. When this occurs, the engine will immediately overheat, and hot coolant will pour on the engine causing steam from the engine bay.
The solution is to replace the radiator hose and coolant, and bleed the cooling system.
To prevent this from occurring, the radiator hoses should be changed every 60,000 miles.
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