Draining Coolant
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Cadillac DTS Forum - 2006 through 2012 Discussion, Draining Coolant in Past Cadillac Vehicle Discussion; The only way I can see to drain the coolant is by removing the lower hose where it attaches to ...
  1. #1
    coolvt is offline Cadillac Owners Member
    Automobile(s): 2007 DTS
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    Draining Coolant

    The only way I can see to drain the coolant is by removing the lower hose where it attaches to the radiator. To get at that clamp it appears I would have to remove the intake air box. Is there another way??
    Thanks,
    Mark

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  3. #2
    teckguy's Avatar
    teckguy is offline Cadillac Owners Member
    Automobile(s): 2006 DTS (Titanium) 43,000 KMs
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    Yup take out the air box and it's easier to disconnect the lower rad hose at the engine vs the rad.


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  4. #3
    coolvt is offline Cadillac Owners Member
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    Thread Starter

    Re: Draining Coolant

    Thank you. Another question.....if a shop sucks it out, how much is actually removed? And, could I do the same thing with a shop vac?

  5. #4
    teckguy's Avatar
    teckguy is offline Cadillac Owners Member
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    Problem is that the thermostat will be closed .... I drain what I can and refill with Dex and distilled water every 2-3 years... Refreshes enough chemicals and works well enough. I do the same on my Vette.


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  6. #5
    coolvt is offline Cadillac Owners Member
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    Re: Draining Coolant

    Wonder how the dealer or quick lube places change it? They claim they suck or pump it out.

  7. #6
    billbill1 is offline Cadillac Owners Member
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    Re: Draining Coolant

    You may have "IT", claim, is the name of the GAME.

  8. #7
    coolvt is offline Cadillac Owners Member
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    Re: Draining Coolant

    And when they suck it into a big tank there is no way of telling how much they are getting out. That's some pretty quick money for anyone in the coolant changing business.

  9. #8
    coolvt is offline Cadillac Owners Member
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    Re: Draining Coolant

    Well, removed air box and was going to remove hose. The hose wouldn't twist off and if I began prying I figured I might get into a mess. I ended up sucking about 3 quarts from the expansion tank with a shop vac and 1/4" hose attached. Figure I'll just do that each year or so.

  10. #9
    billdaman is offline Cadillac Owners Fanatic
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    Re: Draining Coolant

    Quote Originally Posted by coolvt View Post
    The only way I can see to drain the coolant is by removing the lower hose where it attaches to the radiator. To get at that clamp it appears I would have to remove the intake air box. Is there another way??
    Thanks,
    Mark
    Remove splash shield, purchase long hose clamp pliers from Harbor freight, Drain coolant. Replace factory clamp with stainless worm gear clamp and position screw so you can reach it in the future from the top of the engine bay

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