High and low mileage STSs in Austria - opinions appreciated
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Cadillac Seville / Cadillac Eldorado Forum Discussion, High and low mileage STSs in Austria - opinions appreciated in Past Cadillac Vehicle Discussion; Hello folks, I'm new in this forum and I live in Vienna / Austria. Several weeks ago I found a ...
  1. #1
    BenzinoNapoloni is offline Cadillac Owners Member
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    High and low mileage STSs in Austria - opinions appreciated

    Hello folks,

    I'm new in this forum and I live in Vienna / Austria.

    Several weeks ago I found a 1996 STS to be sold and since that time I'm dealing with the conditions this car may be now.

    That STS was bought 6 years ago with about 155.000 km and no more driven since that time.

    Than again some weeks ago a 1992 STS was to be sold with "1000 km". That's true.
    The ancient lady drove the car only once or twice a year.

    Does anybody here have experiences with 4.9 or 4.6 STS in similar conditions?

    I'm very experienced in car repair including transmissions. But unfortunately I've no experience at all what could be the outcome of engines that being not much used.

    Thanks for your replies in advance and kind regards.

    Thomas

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    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: High and low mileage STSs in Austria - opinions appreciated



    The 4.9 is much more reliable. The 4.6 is a great , powerful and fuel efficient engine, but the pre 2000's where a bit more prone to HG failures and if that happens, you need to drop the drivetrain to disassemble it and all 20 head bolt holes must be drilled, retapped and inserted.

  4. #3
    stoveguyy is offline Cadillac Owners Connoisseur
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    92 Seville with 1000miles? Now there is a rare bird indeed. Miles/kilometers. Who is arguing? That is damn low.

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    basscatt's Avatar
    basscatt is online now Cadillac Owners Master
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    Re: High and low mileage STSs in Austria - opinions appreciated

    I would also prefer the 92 with the 4.9 motor -
    than the 96 with the Northstar -

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    Jim964 is offline Cadillac Owners Member
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    Re: High and low mileage STSs in Austria - opinions appreciated

    I owned a 92 Seville with the 4.9 and agree with the others it was a reliable fun to car to drive.

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    BenzinoNapoloni is offline Cadillac Owners Member
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    Re: High and low mileage STSs in Austria - opinions appreciated

    Thanks a lot to all of you and thanks to the mod for rendering more precisely the header of the thread.

    1000 km are about 620 miles and suggest the ancient lady drove the STS once a year to be controlled routinely as usual in Austria.
    Because of the log unused times of both cars I'm afraid of dried out gaskets (eg. valve stem gaskets) and sealing rings (eg. both crankshaft sealing rings).

    I'm quite familiar with disassembling engines and I think renewing the head gaskets and the valve stem gaskets would be the first work to do at both cars.

    Kind regards

    Thomas

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    stoveguyy is offline Cadillac Owners Connoisseur
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    Re: High and low mileage STSs in Austria - opinions appreciated

    you "found a car to be sold"? does that mean you bought it? sounds like you did since you now mention tearing down the 600 mile motor to replace old seals. i have to ask. what does the underside of the car look like? was it stored in dry conditions? no surface rust or corroded steel surfaces like brake lines or such?

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    BenzinoNapoloni is offline Cadillac Owners Member
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    Re: High and low mileage STSs in Austria - opinions appreciated

    I'm just searching for such a car right now but I know for sure that not 5 or 6 years without driving or even cranking the engine nor 600 miles within 20 years are the worst conditions to keep rubber seals and gaskets ready for daily driving.

    Until now I didn't see the underside of both cars. The 92 STS was stored in dry conditions, the 96 wasn't.

  10. #9
    orconn's Avatar
    orconn is online now Cadillac Owners 10000+ Posts
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    Re: High and low mileage STSs in Austria - opinions appreciated

    Just my two cents, if you are OK with doing the head gaskets, I'd definitely prefer the 1996 Seville STS. The Northstar system cars are great performers much quicker and more satisfying that the 4.9 engine cars.

    Both of these cars will be hard to get parts for in Europe, so if you are going to go for a 4th generation Seville (my favorite)I'd definitely go for the later car and get all the benefits of these great cars have to offer.

  11. #10
    BenzinoNapoloni is offline Cadillac Owners Member
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    Re: High and low mileage STSs in Austria - opinions appreciated

    Since I own a 93 Pontiac Trans Sport too and because of a very large community of Pontiac and Chevy owners (Trans Sport up to Uplander) we have a wide field of US suppliers for parts (even for specific connectors and terminals).
    I'm just a little bit unstable by reading comments and watching videos about drilling the holes for new bolts during head gasket repair.

    I did a lot of head gaskets since I'm driving cars but I never have to drill new holes for the bolts.

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