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Regarding oil pressure, I'll duplicate blk97aurora's contention that it's as high as 80 psi at startup, but only 30-35 when driving (I don't recall what it was at idle after the engine warms up).
Regarding oil consumption, and the "Northstar repuation" of being an oil burner, I wonder how much of this is really consumption versus leakage (crankshaft seal)? I must have the only Classic Aurora (98) which doesn't burn oil. Last year about this time it _appeared_ to be using oil, but, as I found out in March, I was bitten by the crankshaft seal bug which afflicts many (if not all) Auroras. There was never a puddle under the car, but it apparently pooled in and/or ran off the engine cover. This was an $1800 job that thankfully my warranty company covered.
Regarding your initial post of a vibration between 65 and 75 mph, this is a characteristic of nearly all late-model GM G-bodies (Aurora/Riviera/STS/et. al. - due to their stiff body structure), when the tires aren't perfectly balanced. Bottom line is, you need to find a shop that has a Hunter GSP9700 Road-Force balance machine (see http://www.gsp9700.com to find the closest one to you). This machine applies a counter-force to the tire as it spins, detecting wobble that wouldn't otherwise be noticeable on a regular balance setup. My local Tire Centers place only charges me $12.50 a tire to do this - my Olds dealer wanted $34.95 for the same procedure (ouch!)...
Hope this helps,
--Robert
Is it part of the radiator? Where is yours leaking? If it is in one of the end tanks, I would check the local radiator shops and see how much it would cost to replace the end tank. If you are otherwise certain it is in good shape, i.e. no corrosion eating it up, this should save you a bundle particularly if you pull it. Cap lines so dirt doesn't get in. That being said, I've used aftermarket radiators and usually for just a few extra dollars you get an extra core for larger capacity. You will want to pay close attention to where all the foam dams are that force the air through rather than around. you might even have some missing and look for some high quality weather stripping to replace it. While you have it apart you might even check the fan motors for the possibility of lubricating the bearings. As a guess, something like 20W "non-detergent" , maybe synthetic if available or if you find a better spec. This could save you a couple of hundred dollars in motors if you get it before the bearing run dry. Don't over do it and get oil on the brushes as that will shorten the life of them. But experience is that the bearings usually go long before the brushes so you may double their life at a cost of a little time to saturate the bearings. If they are roller or ball bearings they may use a grease. Again, check carefully the sealing around the radiator and condenser so that you are sure it will pull air through both without a lot of leaking. When not moving and the fans must pull air through both it reaches one of the hardest times on your AC. With less air moving through the condenser, head pressures start to increase with the decreased cooling at idle. As you pull away the engine revs and increases these pressures further before you are able to regain enough air movement to cool the freon in the condenser. Although most systems have a blow-off if the pressure gets to high (loss of some freon)and some have a high pressure cutout which means it is overloaded and isn't cooling at all until it resets, I think you'll agree it would be better to have it cooling all of the time and never reach that condition. "Very high head pressures are rough on the compressor"
I bought a life time water pump and upon returning the core I learned that they gave me the wrong one for the lifetime. I grumbled because this was most of a day removing other components because of the brackets that bolted up to the water pump. They gave me a lifetime warranty on it, little concession if it fails early, but a mechanic getting parts overheard and bragged he could change that in thirty minutes. How with all the brackets? He just bent them out of the way. It is almost impossible to bend metal back exactly the way it was and I'll bet every vehicle he did this to would not keep a belt for long. I had to struggle hard with the slack in the bolt holes just to get the new belts running straight without having bent them.
Back to your problem. If I understand this OBD II, it is supposed to take a snapshot of all perameters at the time things mess up and it is supposed to keep up to three if I remember. The problem will be finding someone with the equipment and knowledge to read and interpret that data correctly. Maybe you'll be lucky and they will find a hard code set in memory which should put them on the correct track immediately. Are you having to pay for this? Why did they jump onto all coils and plugs? Did they replace with the double platinums, which are supposed to be good for 100K. Definitely recommend asking for all old parts and if there is a core, ask to see the parts at least. Did they use the silicone dielectric grease on the plugs wires and coils. This stuff will keep any minor arcing from eating up terminals.
Last weekend my wife drove to a local mall and when she tried to start the car to come home, all she got when she turned the key were some faint clicks. She tried a number of times with the same result. By the time I got there (10 minutes), she had tried again and it started right up. It continues to work normally (in my driveway...).
Anyone had similar problems? Solution?
Thanks,
ottoracefan
My '97 has exhibited the same intermittent symptom for about two years. Only once in that time did it not start with the first turn of the key; that time it started right up on the second try. The delay is less than a second. I, too, thought maybe I was imagining it, but it has happened enough times that I know it is real.
I suspect a balky starter solenoid or corrosion on a connector in the starter circuit. Battery is 2-year-old ACDelco of the correct type. I keep my AAA membership up-to-date and don't let my wife drive my Classic.
I hope I'll never be able to best your middle-of-the-Lincoln-Tunnel fuel-pump failure.
If I had something else my wife would drive I would trade with her, but she doesn't like my minivan. We, too have started wondering where/when the worst non-start could be but don't want it to actually happen.
You guys have mentioned exactly what I was thinking - - either starter solenoid or connections, or the column ignition switch (not the lock assembly). Maybe I'll get a used starter and tackle that job. It's cheaper than the switch and probably easier for a DIY guy. Will kill the solenoid and connection possiblities all in one job.
Thanks...........
Thanks
The early Classics had an engine oil cooler in the radiator. It was dropped from production part way through the 1997 model run.
Just to be sure -- six screws retain the storage compartment and there are two more at the ashtray. There are four bayonet-type clips, two on each side of the console top. I insert a hand under the console top (in the shifter area) and gently press upward along the sides to dislodge the clips. Careful, that's a $600 piece of wood.
I haven't heard of the power switch wires breaking, although that wouldn't surprise me. Almost universally the shift indicator illumination wires break because of inflexible wire and poor wire dress. Good luck.
Had a similar problem on my 95. Ended up being the security module, which wasn't recognizing the PassKey thing. It eventually got so bad that it would only start about 1 in 10 times. When I replaced it, I couldn't reprogram it, so the security light is constantly blinking, but everything else still works. Part cost like $240 and took me an hour and a half to put in. Since this is my (and I know I'm gonna catch flak for saying this) beater Aurora, I'm not too concerned. I just took out the bulb behind that light... ;-)
If the same problem were to happen to either of my 97's, I'd take it to the dealer to have it reprogrammed.
Thanks guys.
Dont know what to say.
Henri
I have the right front and it fit into the rear slot. Though it has "94G front, woofer" on it, I'm guessing thats just for assembly. Also, I think bose used them on different cars too. I was looking at a 93-96 camaro rear woofer assembly and the woofer itself looked a lot like mine.
Thanks.
Once the console is loose, apply the parking brake so you can move the shift lever around without your Aurora moving around. There is a u-shaped clip inserted near the top of the shifter handle from the front of the car. I cannot remember if I used a small screwdriver to pry it out or maybe small needle-nose pliers. After you remove the retaining clip, you will be able to remove the shifter handle by pulling straight up. As I recall, there is some kind if a detent to overcome because mine requires a fair amount of force, then breaks free and moves easily. Be careful as it is easy to jerk the handle too far when it comes free -- damaging the power switch wires. Pull the two wires gently from the innards of the shifter to give you enough slack to raise the handle high enough to clear the metal shaft.
With the shaft located about half-way in the shift pattern, you should be able to lift the console top up and off the shaft, giving you access to the wiring. I used flexible test lead wire (Radio Shack) to replace the not-so-flexible-and-easily-broken original wiring for the shift indicator wiring. Be sure to use wire ties or similar to anchor both ends of the flexible wire. Just in case it needs to be replaced, the bulb is a #73. Good luck!
I come out of lurking mode and actually participate in the Aurora boards every now and then when I have something to contribute or share. I have something today that may be useful to Aurora owners with the factory BOSE sound system.
I own a 1990 Oldsmobile Touring Sedan and a new 2003 Collector's Edition Aurora and have the factory BOSE sound system on both of them. I found out over 1-1/2 years ago on the BOSE website that they have an automotive section on it that explains all the technology and features they use in factory automotive applications. They also have a FAQ that explains that they can help with getting information, service, and replacement parts for your car. You just call the number on the site. This is extremely helpful when you can no longer get factory parts from the dealer because they have been discontinued. That happened in my case.
One of my speakers in my Touring Sedan(daily driver) stopped working altogether and the others were cutting in and out at will and making whining noises. Took the car to the OLDS dealer and the parts are no longer available and they cannot service them. Found the automotive section of the BOSE website and called the number. They told me how to ship the speakers back to them for repair. I took them out of the car, packed them really well, and shipped them to BOSE. Had them back in one week and put them back in the car. They refurbished all 4 speakers in my car and charged only $300. They all work now and sound very good. Although, I still have one front door speaker that still whines every once in a while. Not sure what's wrong with it. Might need to call BOSE again.
All and all, they did a very good job for me and saved me from having to either live with the problems or replace the entire sound system and lose the factory look and the steering wheel radio controls. Please use them if you want to keep the factory sound system and look, like me.
I'm impressed with BOSE this way. I'm not sure how many other name brand automotive sound companies do this for their customers. I'm totally sold on BOSE now!
95mushroom:
Try the dealer to get the part numbers. Any GM dealer should be able to look them up for you. They have access to all GM divisional parts information whether they sell the cars or not. If the parts have been discontinued, go to the BOSE website to get the number and call them. I'm sure they will be glad to help you.
Bryant
I think for any given amount of money, you can do a lot better than Bose if you shop around.
(Bose does sound decent in my Aurora, but I've heard better.)
Now back to your regularly scheduled program...
I do want to keep a Classic so I will not get rid of this one until I can find a replacement. I have switched from wanting black to sticking with beige. I have already purchased stuff based on a beige car (i.e. the wheels, the floor mats) so I might as well keep it that way.
Your A/C compressor will not engage in cold weather(below about 45 deg.). I know it says on the control it is on, but only above 45 deg. So your A/C may be okay. I had a small light that came on when the compressor engaged. It come on only above 45 deg. It also disengages between 45 and 50 mph unless the coolant temperature is to hot. It was a very useful light and told me a lot about the cooling system.
A couple of times when it's done this, it's actually conked out and I had to turn it over again (usually when the engine was warm, i.e. I just ran in the store for 5 minutes or something). It's not really hard starting, it's just not starting right away like it always has. It doesn't do this every time, either - I think it happens more when the engine temp is warm.
I've got to take her in to get the CD changer replaced under warranty. The dealership also told me my steering rack is leaking (Hi Henri), and it's probably time for the front wheel speed sensor (going to give my warranty company a coronary - yes, they are still in business, but I don't know for how long at this rate :-)
--Robert
For the money ($230 for scanner, obd2 cable and case plus $65 for PC-Link software and cable), I am pleased with the functionality. It shows whether or not the MIL (malfunction indicator light) is lit (duh! except if the bulb has burned out), status of readiness tests, pending codes, set codes, and their descriptions. It can erase codes, but cannot do things like changing settings of magnasteer.
I have no association with AutoXray except as a satisfied customer.
BTW, scanners have more capabilities than readers. I found this whole topic area very confusing when I started researching it.
Good luck!
http://www.autotap.com/products.html and get the GM-specific software. I'm not sure if you can use the generic part on any car, though? But it does a lot more than just scan codes.
The one they have for the LS-1 is pretty dang cool. Looks like you can change fuel maps, timing, all sorts of stuff.
I looked at AutoTap early in the year (probably based on your recommendation). It does provide more functionality at about the same price; I decided to go with AutoXray because I didn't want to be tied to my laptop in the car, and I do not own a palm. It's good to have choices.
The code can be erased with a scanner, and that will turn off the SES light. If you're within driving distance of Freehold, NJ, come on over and we can hook up my scanner to your '99. Same goes for any other list members.
With your problem corrected, the SES light will go off by itself after several engine on/off cycles. I never found any documentation that gave an exact number of cycles. I had a similar situation as yours and it took 2 to 3 weeks of 2 to 4 starts per day for the SES to finally go off -- that was frustrating (and before I got the scanner).
It is nice to know that it will reset itself at some point. I'll probably wait it out. If it does not reset, I might just take you up on your kind offer.
you could also disconnect the negative battery terminal overnight, that should do it too. i thought i read somewere it takes 8 hours to completely reset
anyone have any ideas? like established before, its not easy to have it scanned. i will call oldsmobile tomorrow, but maybe this has happened before?
thanks
I paid $43 for a starter with 3k miles on eBay. Took me 3.5 hours to change it out, without rushing. Not a hard job at all if anyone is thinking about doing it. This is on my '95 classic.......
I'll keep the group posted on whether I have anymore delayed starts.
Dale