Big Problem with 2006 A8 after oil change
07-10-2013, 10:35 AM
#11
AudiWorld Super User
Clear the codes with VCDS - it should be OK now.
Yes, big coincidence Louis.
Update, i left this morning. The car was sputtering. It calmed down after warm up. I brought it to JiffyLube, they saw that the hose for the air filter was not on all the way. So they fixed that. It still has that fluttering/grinding sound when accelerating though. They hooked it up and it shows all cylinders have codes or are misfiring along with the O2 sensor. The light that is on is the Emission Control dummy light.
Update, i left this morning. The car was sputtering. It calmed down after warm up. I brought it to JiffyLube, they saw that the hose for the air filter was not on all the way. So they fixed that. It still has that fluttering/grinding sound when accelerating though. They hooked it up and it shows all cylinders have codes or are misfiring along with the O2 sensor. The light that is on is the Emission Control dummy light.
Good luck and learn your lesson :-),
Louis
07-10-2013, 10:36 AM
#12
AudiWorld Super User
Somewhat hard to follow/be sure, but I would be looking at two basic areas:
1. The various engine running issues, codes and related lights
2. The noise
1. On the first, as others have said it sounds like disconnected hoses around the air box and such may have led to the running and trouble lights issues. Things should be reconnected and assembled correctly, and then codes cleared. After that, see if all is in order as far as engine running. That will simplify stuff a lot and get down/back to the noise issue.
2. On the noise, it sounds from your description like at times the car was running on the lift either in park or in neutral--the wheel spinning backwards for example; in park one front wheel goes forward when the other goes the opposite way when I jack mine up. Then it sounds like they had it in drive and were running it on the lift. I hope the rear wheels were free to turn too while doing that; kind of a no-no for stressing things. Regardless and more specifically from your description, when you put the car in park, drivetrain motion has to be stopped first. Thus while driving, of course you come to a stop before putting it in park. True of any automatic regardless of make. If it is on a lift with wheels spinning, the wheels have to be braked to a full stop before it is put in Park. Otherwise, the parking pawl inside the tranny doesn't engaged to something stopped. That's the thing I'm wondering about noise wise and from your description akin to something struck in bicycle spokes. From other cars' experience (boo-boos'...) I think it can physically be engaged while wheels are spinning, which leads to kind of a loud ratchet clicking noise until it comes to a stop; whether damage occurs or not would be situational and tranny design dependent, and I certainly haven't run into that in any recent car. I can't really figure out how the noise would have started earlier (before the lift stuff), other than coincidence or something physically rubbing on a drive axle up front.
2. The noise
1. On the first, as others have said it sounds like disconnected hoses around the air box and such may have led to the running and trouble lights issues. Things should be reconnected and assembled correctly, and then codes cleared. After that, see if all is in order as far as engine running. That will simplify stuff a lot and get down/back to the noise issue.
2. On the noise, it sounds from your description like at times the car was running on the lift either in park or in neutral--the wheel spinning backwards for example; in park one front wheel goes forward when the other goes the opposite way when I jack mine up. Then it sounds like they had it in drive and were running it on the lift. I hope the rear wheels were free to turn too while doing that; kind of a no-no for stressing things. Regardless and more specifically from your description, when you put the car in park, drivetrain motion has to be stopped first. Thus while driving, of course you come to a stop before putting it in park. True of any automatic regardless of make. If it is on a lift with wheels spinning, the wheels have to be braked to a full stop before it is put in Park. Otherwise, the parking pawl inside the tranny doesn't engaged to something stopped. That's the thing I'm wondering about noise wise and from your description akin to something struck in bicycle spokes. From other cars' experience (boo-boos'...) I think it can physically be engaged while wheels are spinning, which leads to kind of a loud ratchet clicking noise until it comes to a stop; whether damage occurs or not would be situational and tranny design dependent, and I certainly haven't run into that in any recent car. I can't really figure out how the noise would have started earlier (before the lift stuff), other than coincidence or something physically rubbing on a drive axle up front.
Last edited by MP4.2+6.0; 07-10-2013 at 10:48 AM.
07-10-2013, 10:47 AM
#13
Audiworld Junior Member
Thread Starter
1. They reconnected the hose to the air box/filter so I think that sputtering this morning will not happen anymore. Not sure how to clear the code. I had an old Kia that would clear the codes if i disconnected battery for a few minutes. I'll try that.
2. Just to be clear, the rubbing/fluttering sound happened while driving, before I brought it back to them and they put it in park while wheels spinning on the lift.
3. Could them not putting in in jack mode have something to do with me not being able to change the suspension from sport to comfort or automatic where I want it?? Is it possible that with the 20 inch wheels, the sport mode lowers the car too much and it creates rubbing from the tires?
2. Just to be clear, the rubbing/fluttering sound happened while driving, before I brought it back to them and they put it in park while wheels spinning on the lift.
3. Could them not putting in in jack mode have something to do with me not being able to change the suspension from sport to comfort or automatic where I want it?? Is it possible that with the 20 inch wheels, the sport mode lowers the car too much and it creates rubbing from the tires?
1. The various engine running issues and related lights
2. The noise
1. On the first, as others have said it sounds like disconnected hoses around the air box and such may have led to the running and trouble lights issues. Things should be reconnected and assembled correctly, and then codes cleared. After that, see if all is in order as far as engine running. That will simplify stuff a lot and get down/back to the noise issue.
2. On the noise, it sounds from your description like at times the car was running on the lift either in park or in neutral--the wheel spinning backwards for example; in park one front wheel goes forward when the other goes the opposite way when I jack mine up. Then it sounds like they had it in drive and were running it on the lift. I hope the rear wheels were free to turn too while doing that; kind of a no-no for stressing things. Regardless and more specifically from your description, when you put the car in park, drivetrain motion has to be stopped first. Thus while driving, of course you come to a stop before putting it in park. True of any automatic regardless of make. If it is on a lift with wheels spinning, the wheels ave to be braked to a stop. Otherwise, the parking pawl inside the tranny doesn't engaged to something stopped. That's the thing I'm wondering about noise wise and from your description. From other cars experience I think it can physically be engaged while wheels are spinning, which leads to kind of a loud ratchet clicking noise until it comes to a stop; whether damage occurs or not would be situational and tranny design dependent, and I certainly haven't run into that in any modern car. I can't really figure out how the noise would have started earlier (before the lift stuff), other than coincidence or something physically rubbing on a drive axle up front.
2. The noise
1. On the first, as others have said it sounds like disconnected hoses around the air box and such may have led to the running and trouble lights issues. Things should be reconnected and assembled correctly, and then codes cleared. After that, see if all is in order as far as engine running. That will simplify stuff a lot and get down/back to the noise issue.
2. On the noise, it sounds from your description like at times the car was running on the lift either in park or in neutral--the wheel spinning backwards for example; in park one front wheel goes forward when the other goes the opposite way when I jack mine up. Then it sounds like they had it in drive and were running it on the lift. I hope the rear wheels were free to turn too while doing that; kind of a no-no for stressing things. Regardless and more specifically from your description, when you put the car in park, drivetrain motion has to be stopped first. Thus while driving, of course you come to a stop before putting it in park. True of any automatic regardless of make. If it is on a lift with wheels spinning, the wheels ave to be braked to a stop. Otherwise, the parking pawl inside the tranny doesn't engaged to something stopped. That's the thing I'm wondering about noise wise and from your description. From other cars experience I think it can physically be engaged while wheels are spinning, which leads to kind of a loud ratchet clicking noise until it comes to a stop; whether damage occurs or not would be situational and tranny design dependent, and I certainly haven't run into that in any modern car. I can't really figure out how the noise would have started earlier (before the lift stuff), other than coincidence or something physically rubbing on a drive axle up front.
07-10-2013, 11:34 AM
#14
AudiWorld Super User
1. They reconnected the hose to the air box/filter so I think that sputtering this morning will not happen anymore. Not sure how to clear the code. I had an old Kia that would clear the codes if i disconnected battery for a few minutes. I'll try that.
2. Just to be clear, the rubbing/fluttering sound happened while driving, before I brought it back to them and they put it in park while wheels spinning on the lift.
3. Could them not putting in in jack mode have something to do with me not being able to change the suspension from sport to comfort or automatic where I want it?? Is it possible that with the 20 inch wheels, the sport mode lowers the car too much and it creates rubbing from the tires?
2. Just to be clear, the rubbing/fluttering sound happened while driving, before I brought it back to them and they put it in park while wheels spinning on the lift.
3. Could them not putting in in jack mode have something to do with me not being able to change the suspension from sport to comfort or automatic where I want it?? Is it possible that with the 20 inch wheels, the sport mode lowers the car too much and it creates rubbing from the tires?
2. I really don't follow your description about the lift. Was the car EVER not in park on the lift? If always in park, one wheel will spin the opposite of the other in front (don't recall in back), but it is only nominal speed. On the other hand, I rarely have all wheels in the air with engine running at all experience wise. And if always in Park, then parking pawl points I made can probably be dismissed. Then you have some other TBD noise source.
3. No, the factory 20's clear in full, Jack mode oversight or not. Lots of times on mine frankly I forget to set it first before jacking a wheel up--with factory 20's and 275's. No big deal. S8's all have at least 265/35-20s's (and some 275's probably and they all have the 20mm type sports drop, but likewise no rampant (or even occasional) reports of persistent issues related to lift mode passing forgetfulness. I would run the car for a while to see what happens on the suspension stuff. If battery is low or compressor overworked, system will cut out for a while. When I use mine a lot while parked and dong maintenance, I at least need to start it and let compressor get back going behind the scenes. And if battery is somewhat low, it can take more time.
07-10-2013, 12:35 PM
#15
Audiworld Junior Member
Thread Starter
After i heard a problem while driving it after they did the oil change, they lifted the car on the lift. They put it in drive with all 4 tires in air and they revved the engine. One wheel was sticking a little(front driver side wheel). Then, he took foot off the gas and the engine was still revving by itself. The one guy told him to put it in park while this was going on and since the engine was revving and tires spinning, the clacking noise ensued. Then they did that again till I told them not to.
Now, even before they did this, i was experiencing some issue while driving so I don't think my current issue is related to putting in in park while driving. That's why I was thinking that rubbing sound was suspension related........I really just hate not knowing what it is. And it's only on acceleration. I can cruise at 60mph and no problem with the car, it's only when the rpms rise.
Now, even before they did this, i was experiencing some issue while driving so I don't think my current issue is related to putting in in park while driving. That's why I was thinking that rubbing sound was suspension related........I really just hate not knowing what it is. And it's only on acceleration. I can cruise at 60mph and no problem with the car, it's only when the rpms rise.
2. I really don't follow your description about the lift. Was the car EVER not in park on the lift? If always in park, one wheel will spin the opposite of the other in front (don't recall in back), but it is only nominal speed. On the other hand, I rarely have all wheels in the air with engine running at all experience wise. And if always in Park, then parking pawl points I made can probably be dismissed. Then you have some other TBD noise source.
07-10-2013, 03:16 PM
#16
AudiWorld Super User
Join Date: Feb 2012
Location: Moronville, Tennessee (Middle TN)
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They could not have switched from drive to park without pressing the brake, assuming the brake light switch is working.
There is no "Emissions control warning light".
Are either of the suspension warning lights on?
There is no "Emissions control warning light".
Are either of the suspension warning lights on?
07-10-2013, 07:17 PM
#18
AudiWorld Super User
True nominally, but not in reality.
Yes you have to apply the brake, but only lightly. When driving, you can easily shift through neutral to either drive or reverse with the car in motion just by light application of the brakes. And when on a lift, that's different than bringing the wheels to a complete stop before shifting into Park. That is what should have been done. Souds like it was not, which would mean the parking pawl was probably clicking until the wheels came to a stop.
07-10-2013, 07:34 PM
#19
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Join Date: Feb 2012
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Yes you have to apply the brake, but only lightly. When driving, you can easily shift through neutral to either drive or reverse with the car in motion just by light application of the brakes. And when on a lift, that's different than bringing the wheels to a complete stop before shifting into Park. That is what should have been done. Souds like it was not, which would mean the parking pawl was probably clicking until the wheels came to a stop.
