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Follow the radiator hoses one leads to the water pump the other leads to the thermostat housing. The thermostat housing hold the thermostat all you do is unbolt it romove old thermostat and replace with new one.

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13y ago
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14y ago

some are in the lower hose and some are at the housing on top where the top hose connects to the block

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Q: How do i replace a thermostat on a 4.6 northstar engine?
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