radiator replaced but bubbling up out of surge tank. - Page 3
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, radiator replaced but bubbling up out of surge tank. in Past Cadillac Vehicle Discussion; +1 let it cool down and I bet you will be able to add more coolant. Did the 2002s not ...
  1. #31
    Slipgate is offline Cadillac Owners Enthusiast
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    Re: radiator replaced but bubbling up out of surge tank.

    +1 let it cool down and I bet you will be able to add more coolant. Did the 2002s not have digital readout gauges? Is there a dash display where you can cycle through readings? Don't lose hope. Like I said, these cars are notoriously hard to get air out of the cooling system when it is evacuated. It will burp and be ok.

  2. #32
    cajunboy is offline Cadillac Owners Member
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    I let it cool off checked the level and it was just where it should be. I took it for a ride and it started overheating again. I did have a thump sound was that the engine burp. Right now I letting it cool off I am looking at the coolant level and it is not going down. I only put 1 1/2 gallons.

  3. #33
    Submariner409's Avatar
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    Re: radiator replaced but bubbling up out of surge tank.

    Have you removed the safety shroud and visually checked the water pump drive belt and tensioner pulley ?

  4. #34
    cajunboy is offline Cadillac Owners Member
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    Yes pulley seems fine belt also. Describe a engine burp thanks

  5. #35
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    Re: radiator replaced but bubbling up out of surge tank.

    I think they're saying that, when the cooling system is able to move enough coolant to force an air bubble/air lock out of wherever it is and the resulting aerated coolant passes the water pump to get ejected into the purge line > surge tank - - - the engine "burps". I doubt that you would feel it.

    Same idea as turning on a garden hose that has been unused for a while - several spits, bubbles, steady stream.

  6. #36
    cajunboy is offline Cadillac Owners Member
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    Well I did everything. The radiator top hose got hot thus the thermostat opened so that not the problem. Fans are blowing. Purge line is unclogged. And I am getting hot air from heat which indicates enough coolant. But it still overheats. Am I supposed to idle while it is overheating. Or shut it off. I am frustrated sorry. I changed out the front engine mount and that came out a success. I guess I'll bring it to a shop and have them look at it. I don't like bringing it to the shop right in front my apartment complex there strictly about money and expensive. But I don't want to go to far. I still have some hope. So if anyone can give me a tip or solution as you'll have been doing ill appreciate it. Thanks

  7. #37
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    Are you sure it's actually overheating?

  8. #38
    cajunboy is offline Cadillac Owners Member
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    Has for has the temp display yes it got to 3 bars over normal the first time I drove it. And two over the second time. I shut car off and the fans kept running for about 2 mins. Hey what the gauges can be wrong. What u think can it be. I am in my car right now and the coolant is at the correct mark. So I do not know but I just scared to go 14 miles to work and it overheats in me. Head gasket can go. Please help

    ----------

    When the engine is on does the coolant rise in the tank. I just turned the heater on and it is blowing hot air.
    Ok it has been running 20 mins. And already 1 bar above normal temp.

    ----------

    The hoses are hot and stiff. Ok 2 bars over ok I shut engine off fans still blowing.

  9. #39
    Xavier23 is offline Cadillac Owners Member
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    Re: radiator replaced but bubbling up out of surge tank.

    have 03 deville not having the issue but where is the purge line

  10. #40
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    Re: radiator replaced but bubbling up out of surge tank.

    How many "bars" in the graphic display ? IF there are 9, my guess is that they correspond to the tick marks on the analog "gauges" in other models. IF SO, then the fifth bar is 186 - 214 degrees (the readout is heavily damped). Do you own, or can you borrow, an IR thermometer ? It would be good to know what the coolant temp is at the water pump cover when the temp readout in the DIC is at "2 bars over normal".

    IF
    the DIC temp bars correspond to the analog gauge ticks, there is an annotated gauge in my albums. ^^^ Community tab, Albums, the red Seville.

  11. #41
    cajunboy is offline Cadillac Owners Member
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    Ok would ipm current code have anything to do with it. IPM 0429

  12. #42
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    Re: radiator replaced but bubbling up out of surge tank.

    B 0429 ??? - refers to the diverter door/actuator for air to the rear seat console controls.

  13. #43
    cajunboy is offline Cadillac Owners Member
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    Purge line runs across top of engine from water pump side to surge tank. It gets to two bars and I shut it off. The hoses are stiff and hot so I know it is flowing something around coolant and air maybe. This is driving me crazy. I have a feeling it is something simple but I can not point it out.

  14. #44
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    Re: radiator replaced but bubbling up out of surge tank.

    Have you gone back and read all the posts to this thread in the last day or so - ?????

    Coolant hoses are SUPPOSED to get stiff and hot: They're carrying 200+ degree coolant at 18 psi.

    If the engine is sitting there, idling, it's no wonder it gets hot. Let it run until the fans come on at 224 degrees - then let it run some more. If everything is normal the engine will cool to 213 degrees, fans turn off, and the cycle starts again.

    IR thermometer ???? Cylinder block exhaust gas test ???

  15. #45
    Slipgate is offline Cadillac Owners Enthusiast
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    Re: radiator replaced but bubbling up out of surge tank.

    I think you are worrying over nothing. I think there is still a bit of air in the system. Getting hot is not the same as overheating. Your car has a lot of safeguards to protect the engine in the event of a real overheating. I would park it for the night and when you come out in the morning see if it needs more coolant. If not, just drive it until all the air is worked out. The cooling system will not work 100% until all the air is purged.

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