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    flrrican48's Avatar
    flrrican48 Posts: 6, Reputation: 1
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    #1

    Jan 8, 2010, 01:39 PM
    Over heating on a 2000 Montana
    Changed thermostat over heating and the heater inside is not working. Relays for the fans new and working now what
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #2

    Jan 8, 2010, 01:54 PM

    Try reverse flushing the cooling system, including the heater core, replacing the radiator (due to phosphate scale), and refilling with a 50/50 mixture of Dex-Cool and distilled water. This link may help:

    https://www.askmehelpdesk.com/cars-t...tml#post235973
    flrrican48's Avatar
    flrrican48 Posts: 6, Reputation: 1
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    #3

    Jan 8, 2010, 03:14 PM

    It was very helpful thank you.
    flrrican48's Avatar
    flrrican48 Posts: 6, Reputation: 1
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    #4

    Jan 8, 2010, 03:22 PM
    If I did not use Dex-Cool on the radiator can I have it flush professionally
    Or do I need to replace the radiator.
    twinkiedooter's Avatar
    twinkiedooter Posts: 12,172, Reputation: 1054
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    #5

    Jan 8, 2010, 03:27 PM

    If you used just regular antifreeze you can have your radiator professionally flushed. You will need to replace the radiator if it leaks or the inside is extremely rusty.
    flrrican48's Avatar
    flrrican48 Posts: 6, Reputation: 1
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    #6

    Jan 8, 2010, 03:31 PM
    If I did not use Dex-Cool on the radiator can I have it flush professionally
    2000 Montana I did not use Dex Cool when I witerized. Now is over heating. Can I have the system flush or do I have to change the radiator.
    flrrican48's Avatar
    flrrican48 Posts: 6, Reputation: 1
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    #7

    Jan 8, 2010, 03:51 PM
    Quote Originally Posted by TxGreaseMonkey View Post
    Try reverse flushing the cooling system, including the heater core, replacing the radiator (due to phosphate scale), and refilling with a 50/50 mixture of Dex-Cool and distilled water. This link may help:

    https://www.askmehelpdesk.com/cars-t...tml#post235973
    God must have sent you to help me. Thank you. I will be praying for you.
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