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Where is the coolant thermostat on a 1989 Chevrolet 4.3 liter engine?
Wiki User
∙ 16y ago
Follow the upper radiator coolant hose and where it meets the engine the thermostat is under the little neck. It should be 2 or 3 bolts to remove it make sure to se a new gasket and put the new thermostat in the right way and use sealant on the gasket as well as the bolt threads. Make sure to put the sealant on the INSIDE of the bolt holes on the gasket not all the way around them or it might leak. Also don't use 4 lbs of sealant for one gasket
Wiki User
∙ 16y ago
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