Changing water pump on 07 DTS. Did I order all necessary parts?
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Cadillac DTS Forum - 2006 through 2012 Discussion, Changing water pump on 07 DTS. Did I order all necessary parts? in Past Cadillac Vehicle Discussion; Noticed coolant leaking from bottom of water pump housing. And my engine seems to overheat while idle. Engine has 180,xxx ...
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    Rocc4Rocc is offline Cadillac Owners Member
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    Changing water pump on 07 DTS. Did I order all necessary parts?

    Noticed coolant leaking from bottom of water pump housing. And my engine seems to overheat while idle. Engine has 180,xxx miles on it, runs strong, and as far as I know the water pump hasn't been replaced. Ordered a bunch of parts and am going to try changing it myself. I got a lot of info from this thread, http://www.cadillacforums.com/forums...-2007-dts.html, and it recommended I change all the parts associated with the pump.
    Here is a list of parts I ordered, all are GM OEM:
    12559807- Thermostat
    3522676- Thermostat seal/ O-ring
    251 698- AC Delco Water pump (gmpartsdirect lists the water pump as #12583033, do I have the correct part?.)
    12600020- Water pump gasket
    251-2027- (x2) water pump gasket
    251-2023- (x2) water pump gasket
    3535846- Water pump pulley
    12588412- Water pump belt

    Should I order 12555153- Belt tensioner? Am I forgetting anything? If I were to bring all the parts to a local mechanic how much do you guys think they'll charge?

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    Tom's Caddy's Avatar
    Tom's Caddy is offline Cadillac Owners Fanatic
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    Re: Changing water pump on 07 Cadillac DTS. Did I order all necessary parts?

    This is a big job, you are missing the crossover gaskets ( 4 of them ). The crossover has to come off to remove the water pump, you must use NEW GASKETS.

  4. #3
    1BadCadSTS's Avatar
    1BadCadSTS is offline Cadillac Owners Connoisseur
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    Quote Originally Posted by Tom's Caddy
    This is a big job, you are missing the crossover gaskets ( 4 of them ). The crossover has to come of to remove the water pump, you must use NEW GASKETS.
    Since when? All other fwd n*s never needed the cover assembly pulled.

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    Tom's Caddy's Avatar
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    Re: Changing water pump on 07 Cadillac DTS. Did I order all necessary parts?

    No more special tool for the water pump is needed anymore as well. 2006-2011 pump is behind crossover. Pump can not be removed without taking off CROSSOVER.

  6. #5
    Rocc4Rocc is offline Cadillac Owners Member
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    Re: Changing water pump on 07 Cadillac DTS. Did I order all necessary parts?

    What is the part number for the crossover gasket? Either acdelco#, or gm#. Thanks for your reply.

    ----------

    @Toms Caddy- Also how do you remove the water pump pulley without the tool? If I'm correct, its a pressed on part, and the tool grabs one of the outer threads and pulls it out.

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    RippyPartsDept's Avatar
    RippyPartsDept is offline Hi, I'm Chris - Please Read My Signature
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    Re: Changing water pump on 07 Cadillac DTS. Did I order all necessary parts?

    your thermostat seal is the old design part number and will not fit right in the recess where it sits in the pump cover housing

    use #12574478 ... it is a little bit thicker and will form a good seal (as it should)
    Chris Heath (RippyPartsDept) is an ASE Certified GM Parts Consultant at Rippy Automotive
    Rippy is a Cadillac, Hummer, Saturn & Saab dealership - family owned and operated in Wilmington, NC since 1946
    We offer all forum members discounts on parts and freight - e: parts@rippyautomotive.com ph: 800-RIPPY-22
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  8. #7
    Rocc4Rocc is offline Cadillac Owners Member
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    Re: Changing water pump on 07 Cadillac DTS. Did I order all necessary parts?

    Thanks for everyone's feedback. @chris I ordered the new part, thanks. @tomscaddy the water pump gaskets (251-2023, 251-2027) are the crossover gaskets. Looks like I have everything I need.

  9. #8
    Tom's Caddy's Avatar
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    Re: Changing water pump on 07 Cadillac DTS. Did I order all necessary parts?


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