Too Much Spent, Same Problem
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Northstar Engines and System Technical Discussion Discussion, Too Much Spent, Same Problem in Cadillac Engine Technical Discussion; 1998 Deville Concourse New Radiator, new Tstat, flushed out system. Car maintains regular temp on idle. Once I take it ...
  1. #1
    SupremeHustler is offline Cadillac Owners Member
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    Angry Too Much Spent, Same Problem

    1998 Deville Concourse
    New Radiator, new Tstat, flushed out system. Car maintains regular temp on idle. Once I take it out on the street it starts to overheat. My last resort is to check the "vapor line" or how it may be refered to as. Read 60 pages worth of post trying to figure something out. Also spoke with previous owner and claims he put some kind of radiator stop leak sh!t in the system. Please advise.

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    Cadillac_Rancher's Avatar
    Cadillac_Rancher is offline Cadillac Owners Member
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    Re: Too Much Spent, Same Problem

    Quote Originally Posted by SupremeHustler
    1998 Deville Concourse
    New Radiator, new Tstat, flushed out system. Car maintains regular temp on idle. Once I take it out on the street it starts to overheat. My last resort is to check the "vapor line" or how it may be refered to as. Read 60 pages worth of post trying to figure something out. Also spoke with previous owner and claims he put some kind of radiator stop leak sh!t in the system. Please advise.
    What about a water pump?

  4. #3
    zonie77 is offline Cadillac Owners Connoisseur
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    Re: Too Much Spent, Same Problem

    This is the section to post your tip on fixing something. I can't move this.

  5. #4
    SupremeHustler is offline Cadillac Owners Member
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    Re: Too Much Spent, Same Problem

    I'm new to the forum. Sorry.

    Caddillac Rancher, yes even a new water pump. The only thing left for me to do is to check vapor line attched to the reserve radiator reserve looking thing leading to the water pump housing. Thanks in advance.

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    zonie77 is offline Cadillac Owners Connoisseur
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    Re: Too Much Spent, Same Problem

    The obvious thing. Did you do compression/cyl pressure/combustion byproduct tests?

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    EcSTSatic's Avatar
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    Re: Too Much Spent, Same Problem

    How about a collapsed coolant hose? rad cap? fans working?

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    Re: Too Much Spent, Same Problem

    Yeah, it could be the radiator cap not sealing well.

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    SupremeHustler is offline Cadillac Owners Member
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    Re: Too Much Spent, Same Problem

    I'm willing to try anything. Hoses, new t-stat, new water pump, new radiator. Everything is in working condition and no flaws or leaks. Buying new radiator cap tomorrow. Anything at this point is worth a try. I appreciate the help guys. Thanks.

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    zonie77 is offline Cadillac Owners Connoisseur
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    Re: Too Much Spent, Same Problem

    have you done the tests I suggested?

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    EcSTSatic's Avatar
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    Re: Too Much Spent, Same Problem

    Quote Originally Posted by zonie77
    have you done the tests I suggested?
    Thinking headgasket? Wouldn't he be losing coolant? No mention of that but it would be a symptom to look for.

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    zonie77 is offline Cadillac Owners Connoisseur
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    Re: Too Much Spent, Same Problem

    EcSTS,

    Your right, I read that into the overheating.


    Supreme,

    Is it loosing coolant or just running hot?

  13. #12
    SupremeHustler is offline Cadillac Owners Member
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    Re: Too Much Spent, Same Problem

    Quote Originally Posted by zonie77
    EcSTS,

    Your right, I read that into the overheating.


    Supreme,

    Is it loosing coolant or just running hot?
    It's just overheating. About to do some work on it now. Checking purge line for blockage.

  14. #13
    SupremeHustler is offline Cadillac Owners Member
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    Re: Too Much Spent, Same Problem

    Quote Originally Posted by zonie77
    have you done the tests I suggested?
    Done this test no.

    Car runs great and no hesitation on power. Still over heating.

    Just for the record before my car had any problems. I had a slight loss of coolant. I would have to fill the purge tank will coolant once a month. Never could find it, so I added once of these "radiator stop leak" things to the purge tank. MAJOR MISTAKE! Car ran perfect before this.

    Things done to it.
    1. New radiator
    2. New T Stat
    3. New Water Pump ( bought the tool for - read about it here - Thank You!)
    4. Flushed out system 3 times
    5. Removed purge tank and clean it out. The "radiator stop leak" had crystalized in the tank where you could crush with fingers. Cleanout where all ends water flowed perfect without no problems. Installed back with screw type and got rid of those annoying hose clips.

    Things about car.
    1. Car runs good at start up
    2. Cooling fans do kick on when car needs them
    3. On idle, car maintains normal temp. (rev up engine without no hesitation - all power). Car still maintains normal temp.
    4. When it does overheat some, coolant is expelled through the purge tank line on the side of tank.
    5. Car has no leaks or under car. Only at the purge tank when it gets hot enough, but I don't let it overheat.
    6 Purge line does not flow until car is at regular temp. At start up, it does not flow for nothing.

  15. #14
    zonie77 is offline Cadillac Owners Connoisseur
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    Re: Too Much Spent, Same Problem

    When you say coolant comes out of purge line on side of tank, is it line going onto ground?

    Were the pellets put in the overflow tank? They need to go into a radiator hose. They do nothing in the overflow tank.

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    zonie77 is offline Cadillac Owners Connoisseur
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    Re: Too Much Spent, Same Problem

    Have you been watching this thread?

    http://www.cadillacforums.com/forums...ad.php?t=50175

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