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over heating with new radiator

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Old 03-08-2006, 11:16 AM
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over heating with new radiator

over heating with new radiator, but not when thermostat in? water pump is good, and does not look like head gaskets are leaking, has anyone had this same problem? oh yeah the engine is the 5vz-fe
Old 03-08-2006, 11:18 AM
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new radiator cap too? sometimes an old one will not seal right with new radiator, keepign system from pressurizing correctly...
Old 03-08-2006, 11:45 AM
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yeah all new. took the water pump off and there is no blokage in the block.
Old 03-08-2006, 12:31 PM
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i know this is a stupid question but do you have any air in the lines?
Old 03-08-2006, 04:09 PM
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If its not a Toyota OEM theromstat I would start there.....
Old 03-08-2006, 05:11 PM
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I would agree: Air in the system, Bad Rad Cap, Bad Thermostat.

Could also be a bad/soft lower rad hose that is collapsing.

Last edited by Gerdo; 03-08-2006 at 05:14 PM.
Old 03-08-2006, 08:14 PM
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Originally Posted by TX-BLKRUNNER
over heating with new radiator, but not when thermostat in? water pump is good, and does not look like head gaskets are leaking, has anyone had this same problem? oh yeah the engine is the 5vz-fe
Did you buy the new radiator hoping to fix the overheating? or was it some other issue?

You might want to read this thread for help with diagnosis:
https://www.yotatech.com/forums/showthread.php?t=79202
Old 03-09-2006, 11:56 AM
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yeah hoping to fix the problem, and it was indeed stoped up, my temps have dropped and now it does not reach opperating temperature as quickly, but i did put the new oem thermostat and then it over heats, i am narrowing it down to a faulty water pump, it made a wierd noise today.
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