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    Mickster4's Avatar
    Mickster4 Posts: 24, Reputation: 2
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    #1

    Dec 11, 2014, 01:58 PM
    2005 Pontiac Grand Am Vibrates while heat on
    Hello, When I turn my heat on more than a little bit in my 2005 Pontiac Grand Am 3.4 L V6 Engine inside the car it vibrates violently. Just started this afternoon, is it a big problem or should I not worry about it? What could it be?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #2

    Dec 11, 2014, 03:52 PM
    Could be a broken section on the fan squirrel cage and it is off balance.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #3

    Dec 11, 2014, 03:56 PM
    Verify that the coolant level in the reservoir is at the full line. Check the operation of the blower motor.
    Mickster4's Avatar
    Mickster4 Posts: 24, Reputation: 2
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    #4

    Dec 11, 2014, 11:05 PM
    Ok is it a big deal? Should I get it fixed right away? It is a car that has 153,000 miles on it and didn't spend too much money on it so just wondering if it is truly worth fixing this problem if I don't have to.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #5

    Dec 12, 2014, 05:57 AM
    Wait, if it is the blower motor making the noise.
    talaniman's Avatar
    talaniman Posts: 54,325, Reputation: 10855
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    #6

    Dec 12, 2014, 08:53 AM
    Identify the problem, and then you can see how much a repair will cost, and whether it needs to be done right away, or is worth doing at all.
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