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Low Coolant Code

Old Apr 12, 2022 | 07:54 PM
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Default Low Coolant Code

I have a 1999 Camaro SS and every time I start the car after like 2 minutes the low coolant sensor comes on. I have no idea why because theres full coolant plus i changed the coolant level sensor on the back of the radiator and i also changed the whole radiator. I even took the positive off the battery to reset the code but it just pops back up. Someone plz help!
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Old Apr 13, 2022 | 12:41 AM
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From: Schiller Park, ILL Member: #317
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When you replaced the sensor, did you use a GM/AC Delco one? I seem to recall the aftermarket ones not working very well in this application.

Anyway, if you can't get it to work properly, you can always just unplug the sensor. The light should go off with the sensor unplugged.
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Old Apr 13, 2022 | 06:50 AM
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It's a very simple sensor, but as RPM WS6 points out, they are known to be bad out of the box.

These sensors are also prone to contamination. Did you fully flush the collant when you changed the radiator? (Half of the coolant stays inside the engine.) Do you have any additives in the coolant? Are you running a 50/50 mix? (Any deviations could cause problems.)
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