How do you replace a thermostat housing on a 2000 Hyundai Elantra?

Answer 1

1.Disconnect the battery cable from the negative terminal 2.Drain the cooling system.If the coolant is relatively new or in good condition,save it and reuse 3.Follow the upper radiator hose to the engine to locate the thermostat housing 4.Loosen the hose clamp then detach the hose from the fitting.If its stuck,grasp it near the end with a pair of large adjustable pliers and twist it to break the seal,then pull it off.If the hose is old or deteriorated,cut it off and install a new one 5.Inspect the condition of the outer surface of the thermostat cover inlet that mates with the hose.If its corroded or pitted,replace the thermostat housing cover 6.Remove the thermostat housing cover bolts and then remove the cover.If the cover is stuck,tap it with a soft-face hammer to jar it loose.Be prepared for some coolant to spill as the gasket seal is broken 7.Note how the thermostat is installed (which end is facing out)and then remove it 8.stuff a rag into the thermostat housing,and then remove all traces of old gasket material and sealant from housing and cover with a gasket scraper.Remove the rag from thermostat housing and then clean the gasket mating surfaces with lacquer thinner or acetone 9.Install the new thermostat in the housing.Make sure that correct end faces out.The spring end is normally directed into the engine and that the bleed hole is at the top 10.Apply a thin ,uniform layer of RTV sealant to both sides of new gasket and position it on the housing