![]() Good Luck and let us know how it is going. That is really all I can think of right now, I do hope that this will help. If relay fails either continuity test, replace cooling system fan relay. Check the continuity between terminals No. ![]() the coolant temperature and coolant level sensors and shut off the engine to. If the antifreeze vanishes without any apparent reason, check these components for cracks, damage, or defects. It could be a blown head gasket, a fractured cylinder head, damaged cylinder bores, or a manifold leak. Check the continuity of the terminals No. Check the timing marks on the crank and cam pulleys. When you are losing coolant but no leak is visible, several parts could be the guilty party. Remove the cooling system fan relay (high and low) from the relay box under hood.Ģ. Testing Cooling System Fan Relay See figure 3 for location.ġ. Turn your ignition on, your fan should turn on.At operating temperature you can check with an ohm meter to see if the sensor is closed, check for continuity.If no continuity, replace the sensor. If not, replace your fan.If your fan turns, check your sensors, unplug the cable from the terminal and shorten the wires with a paper clip. connect on of the top terminals to the positive of your battery and one of the bottom ones to your negative terminal. Of course, you also have the actual fan behind the radiator. (2.7L) At top rear of engine, on engine coolant outlet fitting. 2 In engine compartment fuse/relay box.Ĭooling Fan Low Relay In engine compartment fuse/relay box.Īnd then you have the engine coolant sensors.Not sure what engine you have I attached two images with the location based on your engine size. If the Engine Oil Level Warning light illuminates, check the engine oil level as soon as possible and add the recommended engine oil as required. 1 In engine compartment fuse/relay box.Ĭooling Fan High Relay No. The Engine Oil Level Warning light will illuminate when the oil level is insufficient for continued safe operation of the engine. ![]() Then there are three relay's in your fuse boxĬooling Fan High Relay No. First, make sure that all your wires are properly connected especially the fan wire and the sensor wire. There are a couple of things you can check on. The speeds are determined by the vehicle speed, the air-conditioning load and engine coolant temperature. here is a long answer:-).The Engine Control Module (ECM) provides a control logic for the cooling system and A/C condenser fans.The ECM controls the cooling system and A/C condenser fans in 3 speeds (Lo, Middle, Hi). ![]()
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