Kia 2550023001 Thermostat Assembly

Before deciding the thermostat is broken in cars made since 1998, first check both coolant levels and if the temperature gauge works properly. If your engine doesn't heat up normally, the thermostat might stay in the open position and need replacing. Since the engine stays hot while the top radiator hose stays cool, it means the thermostat has become stuck in its closed position and must be replaced. Keep the thermostat installed while driving to maintain good emissions and fuel economy. When your upper radiator hose is warm, it tells you that the thermostat is already open, making both hot and cold coolant move. Take out the battery cable from the negative terminal, empty all coolant while keeping good fluid for later use. The location of the thermostat housing cover is easy to find by looking along the upper radiator hose. Loosen the hose clamp, detach the hose, and you're good to go. Use pliers to either break the stuck seal or trim away an old hose when needed. Disconnect the thermostat housing cover and remove its fasteners. If the cover won't come off easily, hit it with a soft-faced hammer while being ready to deal with spilled coolant. Keep track of how you put in the thermostat and its gasket while noting the jiggle pin direction. Then get rid of the old thermostat and make the mating surfaces spotless. Put the jiggle pin on the 12 o'clock position when you install the new thermostat, with the spring end facing into the engine. Then place a factory-style gasket under it and put it in correctly like the old one. First apply RTV sealant, then put on the cover housing and tighten all fasteners. Return the hose to its place and secure it with the clamp, handling all restored items the same way. We replace the battery, refill the cooling system, start up the car, and test for leaks while making sure the thermostat works correctly.

Before deciding the thermostat is broken in cars made since 1998, first check both coolant levels and if the temperature gauge works properly. If your engine doesn't heat up normally, the thermostat might stay in the open position and need replacing. Since the engine stays hot while the top radiator hose stays cool, it means the thermostat has become stuck in its closed position and must be replaced. Keep the thermostat installed while driving to maintain good emissions and fuel economy. When your upper radiator hose is warm, it tells you that the thermostat is already open, making both hot and cold coolant move. Take out the battery cable from the negative terminal, empty all coolant while keeping good fluid for later use. The location of the thermostat housing cover is easy to find by looking along the upper radiator hose. Loosen the hose clamp, detach the hose, and you're good to go. Use pliers to either break the stuck seal or trim away an old hose when needed. Disconnect the thermostat housing cover and remove its fasteners. If the cover won't come off easily, hit it with a soft-faced hammer while being ready to deal with spilled coolant. Keep track of how you put in the thermostat and its gasket while noting the jiggle pin direction. Then get rid of the old thermostat and make the mating surfaces spotless. Put the jiggle pin on the 12 o'clock position when you install the new thermostat, with the spring end facing into the engine. Then place a factory-style gasket under it and put it in correctly like the old one. First apply RTV sealant, then put on the cover housing and tighten all fasteners. Return the hose to its place and secure it with the clamp, handling all restored items the same way. We replace the battery, refill the cooling system, start up the car, and test for leaks while making sure the thermostat works correctly.