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Oldsmobile Aurora



  • Sorry Henry, but didn't realize you were answering my post. It was such a generic answer that I thought it was refering to one other the other posters'.
    As to the power steering noise...I think all power steerings squeal when they touch the stops.
  • garnesgarnes Posts: 950
    fjk - that is really interesting about the roller bearings. What is the compression ratio on the new 4.0's? The old ones are 10.3:1.

    I just can't believe that after making an improvement like you mentioned, that they would detune the compression ratio just to run on 87.

    Is running on regular really more marketable than additional performance?? Yikes! I know I may be out of touch on this issue, but give me the flipping HP - I'll happily put in the premium. I'll bet that's why the torque curve is not as "flat" too.

    What do you other guys think? Would you rather have 10 more HP and torque (maybe it would be more - who knows) or the regular unleaded gas?

    Is Lexus running their 4.3 V8 VVT engine on premium or regular?

    Just did a lot of highway driving for the new years fun. The Aurora is the greatest highway cruiser. Total comfort all the way. The seats are the best. Yeah Henry you are right - that thing will win you over on a road trip every time.
  • rjs200240rjs200240 Posts: 1,277
    I believe (but am not positive) that the compression ratio is still 10.3:1 The Northstar is now 10.0:1. The new Aurora V-8 has virtually no parts in common with the 1995-99 4.0. In addition to the roller followers, the engine has revised combustion chambers and cylinder head ports, larger intake valves and smaller exhaust valves, and a center-feed intake system for a more uniform intake path to each cylinder. Also, the engine has coil-on-plug ignition and an air-pump.

    As far as making an engine able to run on 87, if nothing else it should improve the reliability of the engine. If you or someone else accidentally put in regular, or if the premium was of poor quality, the engines ability to handle this would be a good thing. Turning back the timing on an engine designed to only run on premium won't necessarily be enough to stop knocking. Plus, an engine doesn't necessarily have to give up compression to run on lower-grade gasoline. The shape of the combustion chamber, and the flow into it can make a large difference. Lastly, the new Aurora V-8 does get a performance benefit from running premium (premium is recommended in the owner's manual, but it mentions that the car will run safely with regular. It doesn't suggest regular if you want performance or if you are towing.)

    You guys mention Lexus a lot. The Lexus 4.3 does require premium (with a 10.5:1 compression ratio) and only makes 40 more hp than the Aurora. It is 7.5% larger (displacement) than the Aurora. If the Aurora were 7.5% larger and made 7.5% more power, it would crank out about 270 hp. So it isn't that large a difference. Plus, it costs about $20,000 more. I would imagine an engine replacement would be a lot more than an Aurora too (I assume even some Lexus owners buy their car to keep.) The Lexus that would compare to the Aurora would be the ES300. I think you would find the Aurora to be superior to this car. Plus, the ES doesn't even have the option of a V-8.

    The 2002 Corvette Z06 makes 405hp, the same as the 1995 ZR-1. The Z06 engine is slightly smaller, has a lower compression ratio (10.5:1 whereas the ZR-1 was about 11.1:1) doesn't use dual intake runners, or dual injectors, or dual overhead cams, yet it makes as much HP and more torque than the super-high-tech ZR-1. The reason for this is advances in the design of things like combustion chambers and intake ports and valves and the swirling in the chamber and a million other little things. It isn't as simple as "they are both 5.7 liters, but one has an 11.1:1 compression and DOHC and variable intake size". I know it seems like that should be straight-forward, but oftentimes it isn't.
  • fjk57702fjk57702 Posts: 539
    According to gm's media online info for the aurora, the compression is still 10.3 and premium (92 octane) is recommended. I think that the changes in design contributed to the shift in the torque curve. The knock sensor will prevent damage from low octane fuel.

    My service manager said that some people with failed water pumps tried to drive home (more than a hundred miles) and wiped out the engines. Also said the water pumps fail anywhere from around 25000 miles to never.
  • HenryHenry Posts: 1,106
    I can always count on you to give us the math behind the numbers.

    How are you on networking 3 computers running windows XP, windows 95 and windows Me? I don't want to buy upgraded software.

  • garnesgarnes Posts: 950
    Thanks guys - I guess nothing is straightforward with these engines and their design. It's all very interesting. Straight line comparisons just don't work sometimes - they are amazingly complex I guess.

    rjs - I agree 189% about the ES300 comparison. No comparison really. I've driven one several times for extended highway drives + some city. Great car, nicely appointed, and solid, but after being in an Aurora, the ES does seem like a glorified Camry. There was no headroom in the back and it was a bit cramped overall for a "luxury sedan". Apples and oranges really. Sorry if this ticks off anybody lurking who is proud of their "L". Just be happy - they are indeed incredible cars.

    I'd even go so far as to say the Aurora stands up very well against the bigger 400's and even 430's when considering the overall package and especially the price.
  • Henry

    I haven't had problem yet--try cleaning your Pass-key II and/or using a
    spare Pass-key II. Pass -key II Decoder Module may not be reading
    valid code. Also could be intermittent or poor connection in Pass-key II
    Decoder Module connector.
  • I am a new participant in Town Hall .... so I apologize if my question is old news. I have a 2001 Aurora that I purchased new in May 2000. I like the styling, interior comfort, and the balance between handling and ride (although I would like it to be a bit firmer). However, the quality has been extremely disappointing. I really do not consider myself to be overly demanding. My prior car was a 97 Grand Prix that operated flawlessly for 60,000 miles.

    I have had numerous small problems with my Aurora - none of which has prevented use of the car, however the quantity has been distressing. The stability control system failed, the computer display has delivered countless false messages (door's ajar, low oil pressure, low tire pressure , etc...). At least once a month the radio and/or computer display fail to operate at all. Another time, the displays converted themselves to metric (the method to do this manually makes it unlikely that it could have been accidental on my part). The service manager told me "with all that computer stuff you have to expect some bugs". I have been in the computer software field for many years and my clients would never accept that answer. On another occasion it sucked documents from the glove compartment into the ventilation system. The service manager said I really should not put anything in the glove box. (????)

    The most distressing problem is intermittent rattles. I am sure my dealer would fix them if I could pinpoint them, however the rattles come and go and even change locations. I have NEVER experienced anything like this.

    Has anyone else experienced similar problems? Did you ever find a solution?

    I really want to like this car (especially since the resale value is poor, however my patience is running out.
  • fjk57702fjk57702 Posts: 539
    My 98, which is a first generation, has not done anything like what you describe. You must have one of the first off the assembly line for the second generation model though. Your service manager does not sound like a good one. Is there another dealer you could try?
  • hardestyhardesty Posts: 166
    Sounds like you need a new servive manager. Seriously, your electrical ghosts (and possibly many of the rattles) point to a poorly installed or originally defective major wiring harness. The glove box paper sucking issue (only on early 2001 Auroras like yours) was resolved by a rolling change (before my 2001 was built in JUL 2000) and addressed in a TSB that included a fix kit. The 2002 glove box has been redesigned to avoid the problem without the kludge fix (which worked well, but surely cost more).

    With regard to rattles, I have found that most phantom rattles come from wires or control cables that have been poorly installed, broken during installation, or just poorly designed. I know it is drastic, but what I have done (on our 1999 Silhouette van, now gone) was just start looking behind every panel for hold down clips that were never pushed into place, were broken during or after assembly, or prudent places to apply sticky foam or duct tape. Rattles really annoy me too, and I am thankfull that my 2002 Aurora and our 2002 Silhouette are without any so far.

    I know that from my shopping experience originally on the 2001 Aurora that there were a lot of build quality issues on early production models, but these are things that a resposible dealer should expend dilligent effort to fix under warranty.
  • rjs200240rjs200240 Posts: 1,277
    Well said Hardesty. I think I would look for another service department as well. You might consider informing Oldsmobile of the crummy service you have been recieving. They would probably be interested in knowing that. There is some info in the back of your owners manual that will tell you how to go about bringing your problems with your dealership to Oldsmobile's attention.

    I can't believe the guy told you not to put anythiing into your glovebox, as if the very idea was absurd.
  • garnesgarnes Posts: 950
    rjs - My thoughts exactly. I've had great experiences at GM sevice departments. Stories like that actually make me mad. A service department like that is hurting GM. I'd be calling GM and reporting that in some way. Perhaps that jerk gets away with it 4 out 5 times and figures it is worth it to operate with no integrity.

    I guess there is a lot to be said for first year cars. I'm sure glad we have a 2001 Impala and not a 2000. Lots of first year issues there too.
  • fjk57702fjk57702 Posts: 539
    My 95 Riviera was #3000 (about) off the assembly line and did not cause me any grief. The supercharge sucked in the gasket which caused the service department some grief, as they finally had to ask GM for help in fixing it. Perhaps the Riv I should have gotten (#600 or so) would have been a different story, but they took that one for "evaluation" and reran the order.
  • susy1susy1 Posts: 4
    Where did GM hide the paint code on my 95 classic? Its color is 'light gray metallic' but I need a WA number to order some touch-up paint.
  • ewtewt Posts: 127
    The parts guy ran out and looked at a sticker on the spare tire cover on my 96.
  • gisomgisom Posts: 144
    Yep it is in the trunk for the 95's.
  • pizza442pizza442 Posts: 110
    In 95 it was actually stuck on the inside of the pass side 1/4 panel (in the trunk), but to get to it you need to removed the trunk lining.
  • HenryHenry Posts: 1,106
    Its also in the parts department of an Oldsmobile dealership.
  • HenryHenry Posts: 1,106
    If you have not done this already, I recommend that you get the stats for your car. The dealer can do an inqury that will tell you everything about your car (what is on it, the paint code, the day it was built, the plant it was built at, etc . . .). If you are going to keep your classic, it would be good information to have.

    Just a thought.
  • HenryHenry Posts: 1,106
    Its also in the parts department of an Oldsmobile dealership.
  • I have just purchased a 2001 4.0, a program car with 9100 miles and thought I would join you folks as my decision to purchase was partially influenced by the discussions I followed on this board. I though you might benefit from my experience as a new buyer.
    I originally was going to buy either a Lexus LS 400 (used prob 1998) or a similar aged 740iL but after years of not worrying about it, became leery of a rear wheeled car--I live in Idaho and this winter has been a bit more snowy than usual and tho I drove a rear wheel for years with no problems, I still like the idea of having those heavy front wheels pulling than the light rear ones pushing. I considered a 2001 DeVille but to get one with similar equipment I was looking at $8000 more with no better return on my money. I tend to keep my cars a long time, if I like them, so mileage and residual are not a consideration.
    I rented a new deville in the spring and while a nice, quiet car, it was boring--did like the room.
    My Aurora is a bit tight up front and the trunk is limited--two golf bags and I am cramming the clothing into corners--but, considering the last car was a GMC pickup with shell, I think it unfair to compare the Aurora--getting in and out of a Pickup is much easier than a low sedan.
    My experience has been positive so far--I have driven about 1500 miles--one 1000 mile trip to play golf in Nevada and the car was great. It is quiet, with just a bit of tire rumble on some pavements, getting used to the options--found the automatic sound control on the radio had to be turned off because it was either too loud or too soft--couldn't get it right until I found and turned off.
    Only other problem is with intermittant wipers--they do not work with the stalk control! I discovered by accident, hitting a bump that there was a connection so I looked at the rain sense device behind the rearview--when I pressed the triangular box, the intermittant wipers worked for about two cycles and stops--car is going in shop next week. All else seems ok and I am trying to program all the options to my preference-I do not like the automatic door lock feature.
    I would like the seat to move backward a bit but always forget that in a truck the knee position is always different and does fit me better.
    Driving the car on the road is a real pleasure, it goes about its business very competantly and is comfortable. I was in light fog coming back from my trip and found the fog lights to be surprisingly effective--I have never had them on other cars and these gave me enough illumination to get on down the road at highway speed.
    The car came with three Michelins and one Perrelli on the left rear! The dealership shows that a wheel was replaced at 9 miles and I assume the off tire came on then--I have asked them to replace with a Michelin as this difference should have been noticed at the pre-sale check--I can't worry about any noise and traction difference the mixed tread will be giving me.
    One feature in owning a new Aurora that I really like is that I don't see myself coming down the street every five minutes--in the month I have owned the car, I have seen two others, one on the interstate and a neat maroon one here in town that is a 3.5. I also was somewhat worried about my customer's reactions to a Lexus, BMW, and Caddy, they can be a bit touchy about luxury cars since they are paying the freight. The Aurora gave me the V8, the luxury, the size, the performance, and a bit of a mystery with its European look. The more I drive it, the more I am satisfied--wish I could get under and outfrom the wheel a bit easier but what, other than our Mothers and children, are perfect?
    I will stay in touch and hope I haven't bored you all with the narrative. Since I am a new owner to both the Aurora and Oldsmobile, I thought my experiences would be enlightening. Thanks for your ears.
  • fjk57702fjk57702 Posts: 539
    Are you tilting the tilt steering wheel up before you get out of the car? That makes getting in and out easier.
  • fjk, I was perhaps a bit to harsh on getting in and out of the car. As you know, the car has the exit button that positions the seat and wheel for easy exit. My problem is that I am used to the height of my pickup and after years of stepping out of a truck, any sedan is going to be a chore.
    The Aurora is a bit snug for a luxury sedan but I am sure I will get used to it--especially after I get past the static electricity in the headliner that gets my hair all excited--I wasn't making a criticism of the car--just my age and lack of agility.

  • fjk57702fjk57702 Posts: 539
    You would have liked getting in and out of the 84-?? Corvette's then.
  • cwiley1cwiley1 Posts: 82
    To the person that was modifying their air cleaner to remove the restrictions. I have a '95 and a '97 Aurora, my '95 does not have the plastic insert in the top half of the air cleaner like the '97 does. The bottom half is the same in both cars, it appears there would be some restriction because the inlet holes in the bottom half of the air cleaner are small.

    I enjoy reading all the stories on the "classic". I think with all the accessories that are on the cars they will have more problems. I've been use to driving cars with ps,pb,pw,pl,auto and a/c. When you add all the other goodies the Aurora has I'm sure there is more to go wrong.
  • garnesgarnes Posts: 950
    cwiley - I'm one of the air box guys. Is the 95 top part look just like the 97 and only differs by not having a liner?? I hope you got the K&N to go with it. They work.

    I sent pictures to of the mods and hopefully they will be added to the page I have there about the Aurora dyno tests.

    Xtreme Motor Sports said they will be developing a replacement induction system for the northstar and hopes to have something this spring. I hope to get it when it is done and test fit it to the Aurora. They plan to include a heat shield so as to not pull hot air from the engine compartment. I think such a system will add at least a few more peak HP at the wheels over what my mods have done. The air box mods don't add much HP or torque past 5200 +/-. My theory is that it adds HP and torque at "lower" rpms, but after 5200 or so, that hard 90 out of the box and other design inefficacies become major limiting factors on air flow. I hope xms does this.

    Question - how does the drag coefficient on the Aurora compare to other cars? Is it a lot better than an STS? The car sure looks much more aerodynamic than most anything on the road, but you never know just by looking.

    Top speed is not my thing, but is interesting to consider. At the high speeds, the drag is every bit as important as HP.
  • cwiley1cwiley1 Posts: 82
    garnes---The top part of the '95 appears to be identical to the '97 except for not having the liner. The '95 has the same electrical hook-up as the '97.

    No, I haven't tried the K&N filter. I've looked for them at the auto store, they didn't have any for the Aurora. I'll try another store next time. Any suggestion on which store???
  • Hello all! This may have been covered b4(sorry, 2000+ posts were just too many!) and I'm probably dealing with a slightly biased audience. *smile*
    In any case, here's the scenario. I've fallen for
    a '95 listed at a local dealer, sight unseen. It just sounds great! It has the tape, CD, leather, power, etc. And great Ceaser's ghost, that's standard! My in=house auto "guru" thinks the mileage is waay too high for a '95...111 thousand and some change. Price...$5850, of course not counting some haggling/negotiating.
    My car was old like blue Wonder bread, and I had a fender bender that's not worth repair. For the record, it's an '85 Plymouth Gran Fury that I understand is on it's 3rd odometer revolution. It also had a hit or miss (mostly hit...forcefully)am/fm radio.
    Imagine my awe when I read this car's description. I've been wanting something for the daily short commute, that's a good runner for somewhat frequent road trips. (See: not a one-way tank like my old car)We have a toddler, so a 4-door was much more convenient for me than Pop's 2-door('89 Ciera or Calais?) Yet, I have a longing for a gorgeous, sporty car. (sigh..Firebird..grrr) Yet again, after handling the Gran, I'm leery of a light-in-the-butt car in wintry conditions. I've been thinking about the '95 constantly!
    My dilemma: Is it not worth taking the hit on the extra miles? The price sounds reasonable to me, but once I spring for this new car, frequent repairs would be a travesty. I've heard you all mention there being small kinks and bugs in the car and I'm not sure it's worth the headache and especially the expense. Also, being the 1st year(right?), am I opening myself up even more to inevitable problems. Maybe the previous owner already did everything?
    Any advice, especially in-depth, would be appreciated! Thanks AuROAReans!
  • HenryHenry Posts: 1,106
    I have the 95 and I can not honestly recommend it at that price. The milage is high and the 95's can be tempermental. There are toomany maintenance issues or a 95 at that milage. You should try ebay where a 95 can go for as little as $3,900. If you want a Classis, I would recommend the 98 or 99.

  • HenryHenry Posts: 1,106
    I don't believe it but warranty gold renewed my contract for another two years or 25,000 miles. Cost per year is $750.00.

    Any bets on whether the repairs will NOT exceed $750 a year???
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