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Thread: 2000 DHS - cooling system problems

  1. #16
    Join Date
    Mar 2013
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    If the mechanic don't want me to waste my money on fixing the water crosser cause they is a chance I might have some head damage why shouldn't I try I don't have a lot of option right now?


  2. #17
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
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    Jun 2004
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    Woodstock Ill.
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    Re: 2000 DHS - cooling system problems

    You don't "buy a motor". You repair the had bolt threads and replace the HG (still not cheap). Heads do not crack and I have never heard of a cracked crossover either. That doesn't mean it's not possible. You might want to get a second opinion.

    You won't be the first to ignore the snake oil warnings, but consider yourself forewarned. Do some searching. It's all in the archives.

  3. #18
    vincentm's Avatar
    vincentm is offline Cadillac Owners Connoisseur
    Automobile(s): 1997 Cadillac Eldorado ETC
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    Quote Originally Posted by jermaine haynes View Post
    I'm willing to try anything b4 I buy a motor cuz money is tight right now
    Say bye bye to your heater core and radiator then. Oh and your purge line too.

  4. #19
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    Mar 2013
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    So what should I do?

  5. #20
    stoveguyy is offline Cadillac Owners Connoisseur
    Automobile(s): 03 STS
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    Please explain WHAT your problem is? You have to add coolant? The system is sealed. Yes the pressure rises as motor get hot but it than cools down when you shut off car. There is no "release" of pressure happening here. I think you are not exactly following what shop is telling you. The problem seems to be coolant loss? So, bad radiator cap may cause system to boil over? Stuck thermostat may cause overheating? Did shop say your coolant crossover gaskets are leaking? That could be reason for fluid loss. Your waterpump could be leaking. Do you have external leak in engine compartment? Can shop show you?

  6. #21
    Join Date
    Mar 2013
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    I changed out the radiator cap already... Got it flushed out and no boiling out but I have steam from water pump area when start running hot

  7. #22
    stoveguyy is offline Cadillac Owners Connoisseur
    Automobile(s): 03 STS
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    Ok. Waterpump area means leaking waterpump, loose hose, leaky coolant crossover gaskets. You take off the air box and perhaps some of the plenum ducting and can usually see this area fairly well to eyeball any leaks.

  8. #23
    Join Date
    Mar 2013
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    How would I know if my head gasket is blown?

    ----------

    Quote Originally Posted by stoveguyy
    Ok. Waterpump area means leaking waterpump, loose hose, leaky coolant crossover gaskets. You take off the air box and perhaps some of the plenum ducting and can usually see this area fairly well to eyeball any leaks.
    I already replace the seals on the water pump

  9. #24
    stoveguyy is offline Cadillac Owners Connoisseur
    Automobile(s): 03 STS
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    If motor is overheating you should determine if that is true by doing a block test. Use the chemical strips that detect exhaust gas in the surge tank air space.

  10. #25
    Join Date
    Mar 2013
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    29
    No smoke from tail pipe or moister at all

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