Question about 1990 Toyota 4Runner

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Overheat i test drive my toyota hilux surf on the highway and after 10 kms we stop and found that water spills from the radiator and the temperature reading goes up high thru the red markings

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Radiator could be blocked there is a drain tap on the bottom undo and flush out when cold or another problem could be in the top of the water pump there is a thermostat which sometimes rusts closed and restricts water flow intern creates over heating and high pressure which then makes the radiator build pressure and drop the water through the over flow hose you can run the car with no thermostat but it will run cold most of the time meaning no heater or very little heat

Posted on Nov 09, 2008


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2003 Honda Civic LX 90k miles replaced parts: thermostat, radiator cap, radiator. major timing belt job including water pump. Car is overheating: When i am idle coming off the highway the gauge...

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there's a good chance the water pump is faulty/worn and will need replacing hope this is helpful glenn........

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