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1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Cadillac a wise decision ? in Past Cadillac Vehicle Discussion; Originally Posted by CadillacLuke24 I'm not advising you do what I do, as Northstars can be very expensive. HOWEVER, if, ...
  1. #16
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    Re: Cadillac a wise decision ?

    Quote Originally Posted by CadillacLuke24 View Post
    I'm not advising you do what I do, as Northstars can be very expensive.

    HOWEVER, if, down the road, you find a low miles, well maintained Northstar Cadillac, and you have funds to support it accordingly, I'd say why not. They are very nice cars, the Northstar is an awesome engine, and if you take care of them, they definitely return the favor.
    Even if properly maintained, is it still possible to blow a headgasket ?!
    I know it wouldn't be wise to buy one with high mileage since that's when most go out.

  2. #17
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    Re: Cadillac a wise decision ?

    I love my northstar motors..just keep the oil.changed and dont let.it run hot..youll.get long lives out of the 4.6
    jojostar25 likes this.

  3. #18
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    Quote Originally Posted by jojostar25

    Even if properly maintained, is it still possible to blow a headgasket ?!
    I know it wouldn't be wise to buy one with high mileage since that's when most go out.
    Regardless of maintenance, HG issues can occur at 10K, 50K, 100K, 250K, or never. There is NO age or mileage at which they "go out". If someone tells you that, they're either misinformed, or lying.

    The number of engines with HG issues is MUCH smaller than the number of engines with no HG issues.

    As for not letting it run hot, that's not recommended for any engine. But FWIW, the Northstars' "camel mode" will allow you to drive the car for 50 miles, with NO COOLANT, for 50 miles, with no damage.
    RippyPartsDept and jojostar25 like this.

  4. #19
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    Re: Cadillac a wise decision ?

    Quote Originally Posted by MoistCabbage View Post
    Regardless of maintenance, HG issues can occur at 10K, 50K, 100K, 250K, or never. There is NO age or mileage at which they "go out". If someone tells you that, they're either misinformed, or lying.

    The number of engines with HG issues is MYCH smaller than the number of engines with no HG issues.
    My brother has a Cadillac STS, don't think he ever had a issue with his northstar yet.
    I guess you just have to be lucky to have one without those issues.
    What you said, have truth to it that it can occur at anytime.
    I seen a few 4.5 and 4.9 with blown headgaskets but the numbers are small.
    I guess it all depends in the end.

  5. #20
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    There are many members on here (which represent an EXTREMELY small percentage of Northstar powered cars) who have high mileage cars with no HG issues. One member (DrivenDeville) has over 600K.
    jojostar25 likes this.

  6. #21
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    Re: Cadillac a wise decision ?

    Quote Originally Posted by MoistCabbage View Post
    There are many members on here (which represent an EXTREMELY small percentage of Northstar powered cars) who have high mileage cars with no HG issues. One member (DrivenDeville) has over 600K.

    Sounds to me someone really took care their car religiously.
    I notice most issues with these cars people neglect them but expect them to run top of the line.

  7. #22
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    Other than oil seepage, and the exaggerated HG issue, Northstars are pretty bulletproof. Cost of repair is higher, not frequency of problems.
    jojostar25 and SGWORLDWIDE like this.

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    Re: Cadillac a wise decision ?

    Quote Originally Posted by MoistCabbage View Post
    Other than oil seepage, and the exaggerated HG issue, Northstars are pretty bulletproof. Cost of repair is higher, not frequency of problems.
    I take it you love your STS Northstar ?! lol

  9. #24
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    Re: Cadillac a wise decision ?

    Quote Originally Posted by MoistCabbage View Post
    Other than oil seepage, and the exaggerated HG issue, Northstars are pretty bulletproof. Cost of repair is higher, not frequency of problems.
    BINGO! I follow a very regular maintenance schedule (some would say excessive), fix stuff RIGHT as it comes up, and drive her like a racecar. She give me NO issues.
    jojostar25 likes this.

  10. #25
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    Quote Originally Posted by jojostar25

    I take it you love your STS Northstar ?! lol
    My first Northstar ('97 SLS) developed HG issues at ~67K. The original engine in my '01 cracked a head (which is unheard of) at ~74K (IIRC), and was damaged while being studed. The replacement was studded and resealed I think almost 2 years ago now, and has only needed CKP sensors and a MAP sensor so far. The rest of the car, by comparison, has required much more maintenance and repair.

    But yes, great engine, and great car overall. Spent about 2 hours yesterday just driving, highway and rural twisties.

    For the average person' looking for a comfortable cruiser, I'd recommend a '94/'95 Deville (non Concours).
    CadillacLuke24 and jojostar25 like this.

  11. #26
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    Re: Cadillac a wise decision ?

    Quote Originally Posted by MoistCabbage View Post
    My first Northstar ('97 SLS) developed HG issues at ~67K. The original engine in my '01 cracked a head (which is unheard of) at ~74K (IIRC), and was damaged while being studed. The replacement was studded and resealed I think almost 2 years ago now, and has only needed CKP sensors and a MAP sensor so far. The rest of the car, by comparison, has required much more maintenance and repair.

    But yes, great engine, and great car overall. Spent about 2 hours yesterday just driving, highway and rural twisties.

    For the average person' looking for a comfortable cruiser, I'd recommend a '94/'95 Deville (non Concours).

    That's what i want a comfy cruiser, and that might be my perfect fit.
    I was also considering a SLS in that same year i hear how extremely smooth and how it floats.
    See this is why i love Cadillacs, not only the styling but the performance and the ride.

  12. #27
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    If the engine is a concern for you, only '92 and '93 SLSs have the 4.9.
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  13. #28
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    Re: Cadillac a wise decision ?

    Quote Originally Posted by MoistCabbage View Post
    If the engine is a concern for you, only '92 and '93 SLSs have the 4.9.

    I will run into a Northstar powered SLS before a 4.9 in that year. I rarely see those on the street.
    just want to be wise in what i choose right now. But, from all the awesome feedback on here
    i guess the 94-95 Deville win by far. As much i love the styling of the SLS.
    To get my hands on a diamond pearl and fully loaded will be bad ass.
    But who knows i can find one with low miles and a great maintenance history
    I may have to reconsider and get it.
    bigm57ict likes this.

  14. #29
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    Personally, between an older SLS and Deville, I'd buy the Deville.
    basscatt and jojostar25 like this.

  15. #30
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    Re: Cadillac a wise decision ?

    Quote Originally Posted by MoistCabbage View Post
    Personally, between an older SLS and Deville, I'd buy the Deville.
    I have a strange question........
    not exactly sure, but i have heard the hood ornament isn't easily seen from the driving seat of the Deville.
    Is that true in anyway ? lmao
    Faith76 likes this.

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