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| daloud1 |
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I need help. Don't know why but the coolant light is staying on, In my El fairmont Ghia. its been loosing coolant and it came on so i filled it back up. When i start the car it isn't there but after about 20 sec. it comes up. Any ideas would be helpful.
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| hickmanioz |
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could be the head gasket going
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| ebxmple |
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faulty level sensor in header tank <where u fill your radiator>
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| daloud1 |
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I've been leaking only when it gets to normal temp. Did have a cold thermostat in but it wasn't even close to the line under normal, so i got another thermostat and now its leaking more.
I fill it up in the bottle about the battery. Yeah i was thinking it could be the senser thats on the side of the bottle.
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| ItchiOne |
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If the coolant level is correct and the light is still on, then your problem is most likely the coolant level sensor is stuffed.
These coolant level sensors tend to get brittle over time and the floats start to leak which causes the float to sink and the warning light to come on. You will know if the coolant sensor is stuffed when you remove it as all stuffed sensors have a green colored float since they are full of coolant ! The replacement coolant sensors cost around the $50 mark which gives you a complete sensor and gasket and takes 5 minutes to replace 
Cheers, Itchione |
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| Jizm |
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For anyone interested...this is what an old coolant sensor may look like
 I just got a replacement from ford for $65.
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| 4.9 EF Futura |
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It could be air trapped in the system. Air will compress as the cooling system pressurises, causing the level in the header tank to fall.
To check, start the car and wait for the coolant light to come on. Look at the header tank. If the coolant level is appropriate and above the sensor in the tank then the sensor is stuffed. If the level is dropping a fair bit then you most likely need to burp the system. Remove the cap and let the engine idle until it is warm. If the level keeps falling then we need to look at whats causing this.
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| Chooka1 |
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I had the light come on and stay on, all coolant was topped up, took it in for a serivce, was the float that messures if its high or low, had water in it. Just had it replaced, fixed the problem.
_________________ Chooka - Ford Fairmont EL
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| twirqurky |
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Mine was the same thing.
In the end it was a head gasket going. |
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