Coolant level drops - Page 2
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Coolant level drops in Past Cadillac Vehicle Discussion; Only if you keep adding them or use too much and don't follow the proper maintenance....
  1. #16
    mc_marto's Avatar
    mc_marto is offline Cadillac Owners Enthusiast
    Automobile(s): 1991 Cadillac Sedan deVille
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    Re: Coolant level drops

    Only if you keep adding them or use too much and don't follow the proper maintenance.



  2. #17
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: Coolant level drops

    If it ain't broke, don't fix it.

    Once more: If your engine does not and did not have nuisance weeps before cooling system work, there is no need to use the tablets/powder. I have NEVER used the stuff in my STS and my coolant level, cold, does not change by 1/8" in a year (Yes, different engine, but the advice is germane.)

    You guys can run anything you want in your cooling systems, but EaRL knows better (so do I) - and the 2 of us have 87 combined years of fooling with cars. (add in Ranger and we have over 550 years of wrenching........ )

  3. #18
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: Coolant level drops

    Quote Originally Posted by Caddy-EaRL View Post
    Gm no longer recommends the use of gm seal tabs.

    They clog up the system

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  5. #19
    r_2016's Avatar
    r_2016 is offline Cadillac Owners Fanatic
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    Re: Coolant level drops

    I had all the fluids flushed before I put the car back on the road, so the coolant is brand new. I am thinking that there might have been an air pocket in the coolant, or bad cap (rubber is dried). I am going to start with the cap and keep and eye on it. I don't see any signs of a leak on any hoses. Oh, one other thing; right before I took the car off the road, a friend of mine and I replaced the water pump. I don't know if that could have anything to do with the air pocket theory, it was 7 years ago. Thanks

  6. #20
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: Coolant level drops

    cajunboy, Please don't hijack threads. I created a new thread with your radiator replacment in it. Thanks.

  7. #21
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: Coolant level drops

    Quote Originally Posted by r_2016 View Post
    right before I took the car off the road, a friend of mine and I replaced the water pump. I don't know if that could have anything to do with the air pocket theory, it was 7 years ago. Thanks
    VERY possible (actually likely).

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