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Oldsmobile Aurora Maintenance & Repair

4283 messages,  Last post on Nov 25, 2009 at 10:33 AM

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What is this discussion about? Oldsmobile Aurora, Auto Repair, Sedan


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#4261 of 4283
Attempting to Remove my A/C Compressor by apboston85
Nov 03, 2009 (10:19 pm)
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Recently my A/C compressor has been making a whining noise. The A/C in my car has not worked for about two years. I do not want my A/C compressor to seize on me and I don't have the money right now to buy a new or used one and pay for the installation. So, I am going to attempt to take out the Compressor and replace the serpentine belt with a shorter size.
 
Does anyone have any advice before I start this project sometime next week?
 
It is a 1998 Olds Aurora w/ V8.
 
Thanks in advance,
Anthony
#4262 of 4283
Re: Attempting to Remove my A/C Compressor [apboston85] by e_net_rider
Nov 04, 2009 (4:12 am)
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Replying to: apboston85 (Nov 03, 2009 10:19 pm)

My 96 had sensors for over and under pressure that would disengage clutch. So it seems odd that the clutch would be engaging when your system has not been working. Is the noise because the bearing is going out?
What you are attempting to do sounds more of a headache than what it is worth. If the compressor is actually engaging, just remove the electrical plug. If it is the bearing you could have just the bearing replaced, maybe. But because you say it has not been working you might be wasting money on bearing if compressor is bad.
The main question would be, "why was AC not working?" Was the problem because of blend doors or control head, or something to do with the freon circuit? That is, did the freon leak out, or possibly a blockage in system?
Still, in either case I would say it is best to change the pump and leave the wires disconnected at the compressor. Often you are required to buy a new accumulator at the same time as compressor to get long term warranty. Just make sure you put the proper amount of oil in system. Leave system sealed until you are ready to finish repair, then disconnect at accumulator and pump, flush lines, reconnect and then finish charging. Or you could get the flush out of the way before installing new pump and accumulator. I would also check the orifice tube while it is apart.
#4263 of 4283
Re: Attempting to Remove my A/C Compressor [e_net_rider] by pscheid
Nov 04, 2009 (5:29 am)
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Replying to: e_net_rider (Nov 04, 2009 4:12 am)

My belt idler pulley/ belt tensioner was making the racket, not the a/c compressor. Turned out the bearing in that was cooked. This was at 73K miles on a 1998 about 2.5 years ago. These parts plus the belt ran about $195.
 
The bearing in the a/c compressor had a lot of play in it at the time but was still functional.
 
enet knows more than I do about this stuff. But it is not an easy repair the way these items are packed so close to the right fender well and down in there.
 
Regarding disconnecting the wire to the a/c compressor. Wouldn't that isolate the noise problem between the idler assembly and the compressor? Also, there is a button on the center console by all of the hvac controls that says AC. It is lighted when the a/c is operating automatically and can be pressed to shut off the a/c compressor when you don't want it cycling on and off.
#4264 of 4283
Re: 1997 AURORA [jeff8789] by chris53511
Nov 15, 2009 (11:27 am)
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Replying to: jeff8789 (Oct 16, 2008 4:45 pm)

Jeff...I have a 1999 Aurora with the same problem....did you ever get yours fixed? Did the contact cleaner thing work?
#4265 of 4283
1998 Aurora idiosyncrasy by jhowdy
Nov 17, 2009 (2:28 pm)
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Live in Florida, bought the car used in 2005 with about 50,000 miles, great shape inside and out. Once the weather turned cold enough for a heater I noticed that occassionally the car would just stop running while sitting at a red light. It started right up again and didn't show anything in the information center. It still does it now and then.
#4266 of 4283
1998 Aurora Information Center Lighting Disappears by jhowdy
Nov 17, 2009 (3:20 pm)
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I drive two vehicles changing out between the 1998 Aurora and a 1996 Lumina. I had been driving the Lumina for awhile and changed back to the Aurora driving at night when it started raining and I reached to the left for the windshield wipers and messed with the Aurora dimmer switch/cruised control instead, then realized my error. Upon returning home, I turned the car off and went inside, next day the battery was dead, seems while trying to turn on the wipers, I turned something on that drained the battery, anyways the battery was dead. It was fully recharged and the car starts up as always, however since then the information center lighting, the radio lighting, and other center dash lights, radio lights, thermostat light, a/c-heater light intermittently just disappear or don't light up when the car starts. Now, another oddity since that time and it didn't start happening immediately after the dead battery episode but, I started to hear an chattering, arcing sound from the left side of the dash and I think it was coming from the dimmer/cruise, once I turned off the cruise at the switch, it stopped. A day or so later I stood in the yard with the dog early in the morning and the parking lights on the car flashed on and then went off again several times, I feared the battery would be dead again but the car started right up as always. The cables were removed completely from the battery in an effort to reset it if you will and it seemed to work for a short time, the dash lights came on and stayed on when they should have, the arcing sound was gone for a week or two then it started all over again with the exception of the flashing parking lights. Ideas or educated guesses?!
#4267 of 4283
1998 Aurora Antifreeze leaking by jhowdy
Nov 17, 2009 (3:27 pm)
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Another problem with it! I drove it a few miles one night and noticed the temperature was rising, I turned off the a/c, parked and turned it off. The windows fogged up, the temp kept rising. I was able to drive it home and park it. Next morning checked the antifreeze and it was not at the cold line, added some antifreeze and its been fine for a couple of weeks. Today driving in heavy stop and go traffic I noticed the temp rising again, turned off the air while sitting and on while moving, got home and smelled antifreeze. It's dripping front and center about a foot back from the hood latch. Suggestions?
#4268 of 4283
Re: 1998 Aurora idiosyncrasy [jhowdy] by 01aurora1
Nov 17, 2009 (6:08 pm)
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Replying to: jhowdy (Nov 17, 2009 2:28 pm)

I have a friend who also had a 1998 Aurora with the V8. He also had some of the same symptoms. Turned out to be "Crankshaft Position Sensor"... I think it maybe is even a factory recall. I also had to replace the same part on my 2001 V6... but not a recall. It just manifested itself as an engine missfire for me.
Hope this helps!!!
#4269 of 4283
Re: 1998 Aurora Antifreeze leaking [jhowdy] by pscheid
Nov 18, 2009 (10:57 am)
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Replying to: jhowdy (Nov 17, 2009 3:27 pm)

Check out the easy stuff first. Radiator, clamps, and hoses. Water pump. Thermostat. The air dam under the front fascia. Fresh coolant. A properly functioning radiator cap. And if I am not mistaken, isn't there an auxiliary electric cooling fan to assist the radiator fan when the temperatures exceed 220?
 
When the car is hot and it is dark, and with the engine running, take a flashlight and see if you can locate exactly what the source of the steam is. If you are fortunate, you may have a leaky radiator, a bad thermostat, or a failing water pump issue. I had both the radiator and the water pump issues at the same time a year ago about now. I have a 1998 Autobahn with 111K.
 
The location you mentioned, about 12 inched behind the hood latch......
 
Well as you are facing the engine in the dark and using your flashlight, you might want to look over to your left (car's right side) under the radiator shroud to see if either the top radiator neck is the source due to a failing hose, a loose hose clamp, or a leak in the radiator at the top neck (common). The leak may be running across the top of the radiator to the center as you described, 12 inches behind the latch.
 
The water pump is up front too, but off to the right of center as you are facing the engine. Mine was still functioning but was seeping, and you could see steam from that as well as the wetness. By the way, how old is your thermostat? Is it functioning correctly or stuck intermittently? That is right there with the water pump.
 
Some guys are missing the rubber air dam under the front fascia. Since there is no grill on the car, this air dam is the only thing forcing cooler air up into the engine compartment and assisting the radiator in the cooling process.
 
Good luck. Let us know how you make out.
#4270 of 4283
Re: 1998 Aurora idiosyncrasy [jhowdy] by blk97aurora
Nov 18, 2009 (4:18 pm)
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Replying to: jhowdy (Nov 17, 2009 2:28 pm)

The symptom you describe is consistent with a leaking fuel pressure regulator. I have replaced 3 in my '97 with 170,000 miles. The part costs about $50 (buy nothing but AC Delco) and takes ~10 minutes to replace. If I am right, outside temp was merely a coincidence.
 
Les

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