Question about 1992 Lexus Ls 400
Some things to look for if your car is overheating: THermostat stuck in the closed position, cracked head, blown head gasket, leak in radiator, punctured hose, low coolant, cracked block.
Examine the cooling system for obvious leaks in any hoses or parts of the radiator. Let the car run until hot and check the upper and lower hoses. They should both be hot and firm to the touch when the thermostat opens. If the top one is hot and the bottom one is cool and flexible then coolant isn't flowing through the system which most likely is a stuck thermostat. If the coolant level is low you have a leak spomewhere in the system. Have someone pressure test the system if you can't do it yourself. Good luck!
Posted on Aug 20, 2010
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Posted on Jan 02, 2017
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