Preparing for cooling system maintenance
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Cadillac Seville / Cadillac Eldorado Forum Discussion, Preparing for cooling system maintenance in Past Cadillac Vehicle Discussion; I have a few questions about the cooling system. Whenever I get a new to me car, I like to ...
  1. #1
    txtaz is offline Cadillac Owners Fanatic
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    Preparing for cooling system maintenance

    I have a few questions about the cooling system.
    Whenever I get a new to me car, I like to replace wear and tear parts so I know what I have and can rely on it.
    I'm going to be replacing coolant, the water pump belt and hoses. Since I have not been into a N* water pump, should I replace it?
    I know some designs like the Jeeps are pretty bullet proof.
    What do you suggest to do the whole job at one time?

    Thanks,
    Taz

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    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: Preparing for cooling system maintenance

    I assume you are talking about the '02 since you mentioned Northstar.

    If it ain't broke, don't fix it. First off, you need a specail WP socket to remove.install it. Secondly, they are pretty reliable. Cross that bridge when you get to it. I'd just drain and refill it and DO NOT use any sealant tabs aka cooling system supplement. Belts and hose are optional and up to you. Mine are still original.

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    txtaz is offline Cadillac Owners Fanatic
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    Re: Preparing for cooling system maintenance

    , the '02.
    I have a random coolant leak. I drive the car daily now and about 3 times a week I will see about 3 oz of fluid under it. Sometimes in the morning after getting to work I'll check it after an hour or so, sometimes at night. I've been under it 3 times looking for a trail of fluid off a shield or the motor/tranny and I can't find anything.
    It appears under the tranny side of the motor so I assume the water pump, gasket or the hose at the pump.
    The belt has some cracking so I figure I'll do that and hoses and check what comes out of the radiator.
    Yeah, no tabs.

    Thanks for the info.
    I have to say this '02 is turning out to be a very nice car but I'm getting the gas mileage of the '72 (with a 502) and it's the lighest of the 3!
    I just finished my first tank with the motor running properly and only got 15.7 MPG. I get almost 19 in the '92 and it weights 600 lbs more.
    Taz

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    Ranger's Avatar
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    Re: Preparing for cooling system maintenance

    Quote Originally Posted by txtaz View Post
    It appears under the tranny side of the motor so I assume the water pump, gasket or the hose at the pump.
    Oh shit! 2000+ engines seem to have crossover manifold gaskets leak with some regularity. Mine was replaced under warranty. Another spot to check in that area is the heater pipes that run along the rear head. I don't recall hearing about them too much on the post 2000's, but the pre-2000's used to rust and leak.

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    Re: Preparing for cooling system maintenance

    Quite the collection of Eldorados !!
    do they follow you home or something?

    My '92 Eldo also gets about 18 MPG, varies with City driving.. 14,16,17 MPG depends...

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    txtaz is offline Cadillac Owners Fanatic
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    Re: Preparing for cooling system maintenance

    Quote Originally Posted by The Gold View Post
    Quite the collection of Eldorados !!
    do they follow you home or something?
    I get it from my Grandfather, who passed it on to my Father and somehow I got the bug.

    The '72 was given to me by my Grandfather when he was alive and I inherited the '92 after he passed. He loved Cadillacs. I recently finished restoring the '92 and just put it into storage last weekend. The '72 was restored 15 years ago.

    I got the '02 because I was driving the '92 all the time and I want to keep the miles off it (currently at 81k). I really like the Eldorados and prefer driving them over my other daily driver, which I guess is no longer my daily driver.

    The '72 is obviously a land yatch. The '92 and '02 have the same body, FWD and lots of the parts are the same, and yet they are two completly different cars.

    "crossover manifold gaskets leak" I don't like the sound of that. I did a coolant crossover repair on a 8 cylinder BMW which was not fun. It was under the intake and I've had this intake off so it must not be the same. Nothing in there but oak leaves and a starter.

    Time to research.
    Thanks for the heads up.

    Taz

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    txtaz is offline Cadillac Owners Fanatic
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    Re: Preparing for cooling system maintenance

    Quote Originally Posted by Ranger View Post
    Oh shit! 2000+ engines seem to have crossover manifold gaskets leak with some regularity. Mine was replaced under warranty. Another spot to check in that area is the heater pipes that run along the rear head. I don't recall hearing about them too much on the post 2000's, but the pre-2000's used to rust and leak.
    My pipes look good. I think the front crossover is leaking.
    Is there an upgraded parts/procedure to address this, or just replace the gaskets?

    Thanks,
    Wes

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    No upgrades, just gasket replacement. BIG PITA job.

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    Quote Originally Posted by MoistCabbage View Post
    No upgrades, just gasket replacement. BIG PITA job.
    And i'll take son of a bitch'n royal pain in the arse job for a thousand Alex.

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    txtaz is offline Cadillac Owners Fanatic
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    Re: Preparing for cooling system maintenance

    I am a glutton for punishment.

    Just for grins, how much would an idie charge for such a job in case I go lazy, uhm...er, I mean hurt my arm or something?

    Taz

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    At a dealer? >$1,000.

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    Re: Preparing for cooling system maintenance

    ^^^ Yup - labor is not cheap, even in a good Mom&Pop shop.

  14. #13
    txtaz is offline Cadillac Owners Fanatic
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    Re: Preparing for cooling system maintenance

    Quote Originally Posted by Submariner409 View Post
    ^^^ Yup - labor is not cheap, even in a good Mom&Pop shop.
    It is at "Taz' Garage"

    Can it be any worse than replacing the HVAC cover?
    This weekend I'll find out.
    Taz

  15. #14
    mike5514 is offline Cadillac Owners Enthusiast
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    Re: Preparing for cooling system maintenance

    Taz before you start go to autozone rent there pressure tester I think it will be the large kit with 7 adapters (free).

    Pressurize the system take a bright light and a mirror and check very close for leaks you might get away with just tightening a clamp or bolt.

    I did exactly that and stopped a leak by tightening a hose clamp.Mike

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    txtaz is offline Cadillac Owners Fanatic
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    Re: Preparing for cooling system maintenance

    Thanks Mike. Great idea.
    I still want to swap out gaskets and flush the system. I mean, I have these new parts and all, now I have to put them in.

    This car will go into storage with the others and I'd like to know I took care of anything possible. Plus, I'm going to drive it a few years and everyone knows I work on my cars. To have one leave a puddle would be embarrasing.

    Besides, the wife is out of town and this will keep me busy.

    I can come up with more excuses....
    Taz<---Probably needs car restoration rehab.

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