Coolant sensor bad?
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Old August 30th, 2010, 12:02 AM   #1
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Coolant sensor bad?


I have the code on the far right hand side of the display area. It looks like a garbage can with an X in the center. If I recall it is referring to "low coolant level", but I don't have low coolant. What else could this be? The tranny cooler we just installed is leaking at a brass fitting a bit if that makes a difference. Don't know why it would. Any ideas? Do I need a new sensor?
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Old August 30th, 2010, 02:00 AM   #2
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we prob bumped it hard or jarred it while moving the degas tank around installing the cooler, do you have any thread sealer? prob gotta remove the large brass fitting and thread seal that and then thread seal the small brass one
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Old August 30th, 2010, 06:49 AM   #3
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Originally Posted by freefallin2000 View Post
I have the code on the far right hand side of the display area. It looks like a garbage can with an X in the center. If I recall it is referring to "low coolant level", but I don't have low coolant. What else could this be? The tranny cooler we just installed is leaking at a brass fitting a bit if that makes a difference. Don't know why it would. Any ideas? Do I need a new sensor?
Compare the fitting where is screws into the rad vs. trans line fitting itself. If it is life most late model fords the fitting is a little ditterent and you will need to make it look like the factory line nut with a file.

Move the sensor, probably stuck
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Old August 30th, 2010, 09:51 AM   #4
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That coolant level sensor is a bitch. They are notorious for failing over time, and I think the replacement is $100. Mine would get stuck all the time and I got tired of what looked like a battery with X lighting up on the dash. I just unplugged the sensor. That keeps the check engine light off, and I check the level myself every week with the oil and heat exchanger reservoir.
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Old August 31st, 2010, 07:40 PM   #5
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Right, because the sensor really has not bearing on how the car performs. So your saying you just unplugged where the sensor clips in just behind the expansion tank?
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Old August 31st, 2010, 11:01 PM   #6
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Originally Posted by ESABATM View Post
Compare the fitting where is screws into the rad vs. trans line fitting itself. If it is life most late model fords the fitting is a little ditterent and you will need to make it look like the factory line nut with a file.

Move the sensor, probably stuck
we had a brass fitting that threaded in fine to the fitting on the radiator, just got dumb for a second and didnt put teflon tape on the threads, all is better now
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Old September 1st, 2010, 09:20 AM   #7
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Originally Posted by freefallin2000 View Post
Right, because the sensor really has not bearing on how the car performs. So your saying you just unplugged where the sensor clips in just behind the expansion tank?
Exactly. There is no input from the coolant level sensor to the ECU. It's just a dummy light similar to low fuel or e-brake light. It just lets you know. Seriously, I am super meticulous about everything working, but it seems like a waste to worry about this one. Mine has been unplugged a long time with zero issues.
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