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help please overheat on my brother 2000 lexus lx470

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Old 06-13-14, 03:51 AM   #1
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Default help please overheat on my brother 2000 lexus lx470

Hi guys
My brother lx470 2000 with 190k miles has over heat problem
and because he is not in cars, I'm helping him to solve this problem.
He serviced the car month ago, full service with replacing t-belt and water pump,all lubricants and filtersthe and radiator had been cleaned and checked for any defects. Overheat problem appeared before service I thought changing water pump will solve it but now he has the same problem. Even I removed the thermometer to make it directly cooling the system to see the affect but same thing.
The heat gos up some times especially when driving up hill or sometimes in normal driving.
Please any suggestions
Please help
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Old 08-13-14, 02:26 PM   #2
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check the easy stuff first, clogged path to radiator, fan not running, ect.
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Old 08-19-14, 01:52 PM   #3
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thermostat may be playing a role too
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