Question about 1994 Toyota Corolla
My guess is water pump
Posted on Apr 06, 2015
You could have received a bad thermostat from the factory. To test a thermostat, drop it in boiling water and see if it opens. If you did not overheat without the thermostat then logic tells me it's the thermostat. It should visually open at 180 degrees fahrenheit. Put a meat thermometer in the water with the thermostat and turn off the flame. When the water cools to approx 180 the thermostat should begin to close. If it closes at a higher temp, then it is not the correct thermostat. Make note at what temp it closes. The temp is marked on the thermostat but it wouldn't be the first time that the factory mislabeled a part.
Posted on Apr 04, 2015
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Posted on Jan 02, 2017
The Normal Temperature Range to the Fan Start is: A/C ON 181 F.
A/C OFF 199 F. When the Engine Reach this Temperature the Fan should start.
OK. Do this simple test.
1---- Start the engine, Desconnect the ECT Switch located on the Radiator,
See if the Fan come ON. If yes, if not go to step #2
Connect the ECT SWITCH and leave the car Running and with a Temperature gage.
See the temperature, if the Temperature go more than 199 F.
Turn the Engine OFF.
Disconnect the ECT sensor and check for Ground at the WHITE/BLACK wire.
If ground exist, Replace the ECT switch.
But if not. Check the wire for any damaged, and the ground at the Front Left Fender.
Repair as need.
2---- check the Fuse link RDI FAN . 30 amp.
Check the Fuse link CDS FAN 30 amp.
Replace if need.
And Return to step # 1.
Check the Radiator fan Relay, Rad fan relay 2 and 3. Replace if need.
Ok. I hope this help on your question.
I can give to you the WIRING DIAGRAM of the Fans, But I need a E-MAIL adress to do that.
Thank you for use fixya....
Posted on Sep 25, 2008
Ok first check the water pump and if that is ok sounds like the head gasket blown, look for water in the oi, thisl will be like a milky colour
Posted on Dec 01, 2008
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