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1996 Geo Prizm Question: my car overheats at idle not sure why

 

Question

artik, 1.6L 4 Cylinder, Hayward, CA, February 15, 2012, 22:38
 Rookie

i have replace the temp sensor and the fan relay but still the fan doesnt come on

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  • Answer #1

    patrick mannion from Greg Solow's Engine Room, February 15, 2012, 22:43
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     Master

    It could have a stuck closed thermostat not allowing coolant to flow to the radiator from the engine, feel the coolant hoses to the radiator when the engine indicates it is getting hot on the temperature gauge.It the hose is cold coming from the thermostat to the radiator the t/stat is bad. After that you would need a wiring diagram for your car to start tracing wiring and fuses. There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate http://bit.ly/AllData_Repair_Manuals_Online

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    artik, February 15, 2012, 23:12
     Rookie

    but why the temp keep going higher and the fan not coming on ?

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    globalhelper, February 16, 2012, 06:44
     Master

    ck pwr to your fan motor maybe the fan motor is burn't up.take a 12v source and jump the fan motor to see if motor is bad

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