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06 &04 Escalade, 00 DeVille
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Hello all i have a 2000 DeVille and the check cooling level light comes one a short while after i start the car every time even when the car is warm i can turn it off start it and here goes the message again. I check the cooling and it is full? ANyone run into this before, any advise is appreciated
Thanks, Pete NJ
 

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I think I have a similar problem with my Chevy Lumina. I'm told there is a sensor in the radiator that sometimes goes bad and sets off the warning light.If that is the problem it does not affect the operation
 

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Cadillac Technician
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If the coolant level is full and you still see the message the sensor is likely bad.
It's usually part of the coolant reservoir so you have to replace the whole thing. It's really pretty simple even though it's kind of silly.
Sometimes the coolant is just low enough to turn on the sensor but doesn't look low.
Have you tried topping it off just a bit and then seeing if the light still comes on?
 

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Cnjmale said:
Hello all i have a 2000 DeVille and the check cooling level light comes one a short while after i start the car every time even when the car is warm i can turn it off start it and here goes the message again. I check the cooling and it is full? ANyone run into this before, any advise is appreciated
Thanks, Pete NJ
i had this problem witha 96 deville it was a sensor located inside the resorvoir tank which cost me $60 online but its about 85 in the dealership because they only sell the whole reservoir and not the sensor by itself.
 

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98 Concours 212,000 orginal motor,trans
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Actually they do sell just the sensor. You go to any parts store and pick up a coolant level sensor. Any GM vehicle uses the same type sensor.
 

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Any GM vehicle uses the same type sensor
I am not sure where that tidbit of information came from but it's not entirely accurate.
I can think of at least 20 different kinds of sensors used on GM vehicles for an indication of low coolant on many different models over just the past 10 years.
 

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2005 DeVille
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Although I never had this problem on my Cadillac, I did recently have it on my VW '03 Jetta TDI. Just started it up and light came on. Driveway has a slight angle to it so vehicle wasn't perfectly flat.

ewill3rd - you are right. The resevoir looked full but was a tad low. Hardly noticeable. Topped it off and no more light.

Hope your problem is this simple.
 
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