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Low Coolant Light

This is a discussion on Low Coolant Light within the External Engine forums, part of the LSx Technical Help Section category; My low coolant light will come on after driving about 20-30 minutes. I know my coolant is full, but I ...

  1. #1
    Junior Member BWA2110's Avatar
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    Mystic Teal Metallic
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    Low Coolant Light

    My low coolant light will come on after driving about 20-30 minutes. I know my coolant is full, but I am not real sure what exactly is going on. I was talking to a couple of people and they think it might be an air bubble in the system not allowing for proper flow. Anybody else have any ideas. Also if I was going to do a coolant flush is it any different for an LS1. I have heard it can be complicated. Any help please.

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    The Bandit Wesman's Avatar
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    Quote Originally Posted by BWA2110 View Post
    My low coolant light will come on after driving about 20-30 minutes. I know my coolant is full, but I am not real sure what exactly is going on. I was talking to a couple of people and they think it might be an air bubble in the system not allowing for proper flow. Anybody else have any ideas. Also if I was going to do a coolant flush is it any different for an LS1. I have heard it can be complicated. Any help please.
    Its the coolant level sensor.

    Its located at the top passenger side of the radiator if I remember correctly. They get gummed up with coolant and read incorrectly, causing the light to come on.

    As long as you're coolant level is topped off and your temp gauge is normal, don't worry about the light. You can unplug it from the rad if you want as well, that will prevent the light from coming on.

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    Impounded
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    79 T/A -91 Firebird
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    Quote Originally Posted by Wesman View Post
    Its the coolant level sensor.

    Its located at the top passenger side of the radiator if I remember correctly. They get gummed up with coolant and read incorrectly, causing the light to come on.

    As long as you're coolant level is topped off and your temp gauge is normal, don't worry about the light. You can unplug it from the rad if you want as well, that will prevent the light from coming on.
    Booyah

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    Junior Member BWA2110's Avatar
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    I will have to check that out... thanks

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