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Re: 92 eldorado coolant fans dont come on
The fans have relays that are located in the fuse box under the hood on the driver side. a quick check involves just switching the a/c clutch relay with the fan relay if they turn on when engine is hot the relay is bad. if not that means there is a bad connection or the temp probe is bad. make sure no loose or frayed wires are present. hope this helps. please rate this solution. thank you.
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Before replacing your thermostat make sure the fan is fully functional, the coolant system is clean or flush it with a radiator flush and see if the temperature won't drop. If it persists, then U need to change the thermostat. Good luck
on my 2000 malibu 3.1, the fans come on at about 220 and go off at 210. tempurature should read about a line past the half mark. if hotter then this, check coolant level to be sure its ok. and there are no leaks in system. good-day! you might want to check the coolant temperature sensor. Also, there is a relay for the fan in the fuse box. engine is not considered over heating unless it gets to the red line portion of guage about 250 degrees. the fans work for a/c so it must be the coolant sensor thats not turning fans on when it gets hot.
CHECK COOLANT FAN FUSE AND RELAY.IF ALL IS GOOD YOUR COOLANT TEMPERATURE SENSOR FAULTY. AT CERTAIN TEMPERATURE LIKE 190 TO 200 DEGRESS COOLANT FAN WILL TURN ON.BUT FIRST CHECK COOLANT FAN.HOT WIRE IT.IF FAN DONT RUN REPLACE COOLING FAN. IF FAN DOES RUN YOU HAVE BROKEN OR DAMAGE WIRE IN ELECTRICAL CONNECTOR.FAULTY PCM.
CHECK COOLANT LEVEL IN RADIATOR. BUT WAIT UNTIL THE ENGINE COOL DOWN. CHECK WATER PUMP.IF YOU SEE COOLANT LEAKING FROM WEEP HOLE REPLACE WATER PUMP. REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP WHEN CAR OVERHEATING IF CAR AT A STANDSTILL IN LONG TRAFFIC LINE OR MOVING SLOWLY.COOLANT TEMPERATURE SENSOR FAULTY.NOT TURNING ON COOLANT FAN.CHECK COOLANT FAN FUSE AND RELAY.IF ALL IS GOOD.HOTWIRE COOLANT FAN.IF COOLANT FAN DONT COME ON FAN MOTOR FAULTY.IF FAN COMES ON CHECK ELECTRICAL WIRE CONNECTOR FOR DAMAGE WIRES.
doubtful fuse blown,but Make sure all the air is out of cooling system,by bleeding it out or filling coolant reservoir ,and radiator full.Then run engine to about 210 degees,or close,then turn engine off.Wait about 30 to 40 minutes,and reservoir should have dropped in the level of coolant.Then add more coolant and repeat as nessasary for the fan to come on.Then make sure the fan goes ogg on it`s own.Then you will know the system is ok.Do this with ac,and heat off.
yea.. coolant temp sensor. if you are over heating you may need more indepth tersts done to determine more precisely why so that the correct failed reason can be corrected. Sometimes a blown fuse will keep the fans from comming on. 210 is right about where u want the engine temp to be anyway.