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Cadillac Seville / Cadillac Eldorado Forum Discussion, Hot Northstar - Please help ! in Past Cadillac Vehicle Discussion; Keep a close eye on things... The needle in my '98 Eldorado seems to be very heavily dampened. It has ...
  1. #106
    Faded Crest's Avatar
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    Re: Hot Northstar - Please help !

    Keep a close eye on things... The needle in my '98 Eldorado seems to be very heavily dampened. It has never gone past 12:00 even in traffic with a/c on and 106 degree temps outside.

  2. #107
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    Ok so I was looking online for a splash shield/air deflector , the only thing I saw was one for the right side and one for the left side.i'm missing the long black plastic thing ,it's one piece that goes underneath the radiator and part of the engine compartment.what is it called I looked up air deflector and got nothing.

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    Re: Hot Northstar - Please help !

    Talk to Chris in parts at Rippy Cadillac over there on Thursday (holiday tomorrow ?).

    Depending on the parts list it's either "front air dam" or "front air deflector".

    It takes 11 or 13 plastic push-pin rivets - get them, too. (Yes, 11 or 13.............)

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    Ok I'll get with him, still makes me wonder if that's making the temp rise on the highway, cause this just started happening recently .also I a few times I heard swooshing/bubbling sound coming from the dash when I first take off happens once in a while.

  5. #110
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    Re: Hot Northstar - Please help !

    also I a few times I heard swooshing/bubbling sound coming from the dash
    Oh oh!

  6. #111
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    I've read that can be the heater core or water not draining properly after rains from the sun roof drains (I think), why do you say oh on.it only happened a few times here and there and when it does happen it's when I first take off .

  7. #112
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
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    No, water on the floor is (possibly) from the sunroof drains. COOLANT on the floor (front passengers footwell) is a ruptured heater core. Gurgling behind the dash is from air in the cooling system, possibly from an HG issue.

  8. #113
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    If was hg issue would I be loosing coolant.it's only made this noise a few times , it happened after my radiator hose busted a couple of months ago the last time I heard it was a couple of Weeks ago.it only happens when pulling off usually in a turn if I can remember.I think my floor has been wet before and I accused my wife of spilling something.but now I have something to worry about since my temp fluctuates on the highway even though it's still not running Hot.my coolant level stays the same right at the top fill line.

  9. #114
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    Forgive me for not reading through this whole thread again, but have you checked the purge line?

  10. #115
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    Yep it had a flow.i'm just wondering when my radiator hose busted maybe air got into the heater core,I heard it's hard to purge the air from the heater core.but this gurgling sound isn't all the time in fact it's probably been a few Weeks since I heard it and I've only heard it maybe four times in the past couple months.but yeah it didn't start till after the radiator hose busted..it's not daily or every time I accelerate like some other threads I've read .

  11. #116
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    Is it possible for the purge line to be partially block where under higher rpm it's not flowing fast enough, for the needle to fluctuate on the highway.(I did use the coolant tabs when I first got the car)

  12. #117
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    I'm wondering if you might have a partially clogged purge line. Can't remember if you've thoroughly checked it tho. Have you?

    Edit: I posted before reading all the posts. Good idea MC. Def check it out sts03
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  13. #118
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    There was a flow but not saying it couldnt be partially block tough.rippy the air deflector that goes under the radiator who much $? Sub left a diagram in a post yesterday.

  14. #119
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    Re: Hot Northstar - Please help !

    Quote Originally Posted by sts 03 View Post
    There was a flow but not saying it couldnt be partially block tough.
    That purge line is NOT going to flow coolant like a wide open faucet - just a nice, steady flow.

  15. #120
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    When I took the purge line off of the nipple of the surge tank the nipple the outside of the nipple was soaked . is that ok ,cause the hose goes on and off fairly easy.but i'm wondering if maybe loosing some pressure from the end that goes in the surge tank.its not blocked when I pulled the hose off the metal nipple coolant came flowing out,when I blow in the purge line I can blow the coolant through then I can here it coming back up the system.

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