Last post on Nov 10, 2013 at 8:29 AM
You are in the Oldsmobile Aurora
What is this discussion about?
Oldsmobile Aurora, Transmission, Sedan
#28 of 34 Re: BIGDONALD [bigdonald1]
Nov 23, 2011 (8:00 am)
Note it has been two years since you posted your problem and hope I can be of some help. Like yourself have a 2001 Olds Aurora with 3.5 engine. Have exactly same problem as you described; occassional hard shifts, check engine light coming on with transmission codes, occassional whine from transmission.
Had input output sensor replaced under warranty with no success. However mechanic at private service station I deal with advised that there is a technical service bulletin out on this problem. Apparantly it is caused by a faulty electrical connector going into transmission that creates a false signal and causes problem. This is a large, gray connector is located on the right side of the transmission (as you are looking at it from front of car). To alleviate the problem I simply wiggle the connector. Typically check engine light goes out immediately or maybe after several start-stop cycles and transmission works just fine. When in for service have mechanic check codes and inevitably come back as transmission codes, though I cannot tell you which ones.
Problem is getting worse as time goes on. Now have 123K on car. Big problem I face is getting through emissions testing. Have to have check engine light off and car go through several start-stop cycles after resetting light. Was able to get through in August and have almost two years before need retesting. However thought of having to spend $700 on a non-repair to pass emissions (and stay registered) is not comforting one.
Have you had any success with resolving problem?
#29 of 34 Re: BIGDONALD [bigdonald1]
Dec 09, 2011 (7:59 am)
I have had the same problem my boyfriend says it's because we need another motor mount because one is missing gone or idk. But I have had my "black box" for lack of actual name diagnosed and read not just the diagnostic codes but the gm one that actually basically has a convo with the computer and I had an internal mode switch failure which is in the transmission I could go on in detail of what that switch does but I believe from my reading numerous factual information on the ims that my rough shift is being caused by that it's located inside the transmission just spoke to boyfriend he agrees that I'm most likely right does the rough shift happen all the time or just some of the time after the car has had time to warm up. My 01 v6 Aurora had a rebuilt transmission put in about 4 years ago a few months after we purchased the vehicle thank God we had a year warranty also the rack and pinion went twice the air injection system is also a problem the thing I don't know actual name of the part but it's located behind the front driver side wheel well behind the plastic splash protector is bad gm acknowledged the problem and made another one and another place to mount it at being that if water gets in that "which I've gone through 4 secondary air injectors before I started looking up other failure problems" your air injectors are shot or singular but just thought I'd throw that info in here too I wish I remembered the actual name of it but I'm on my cell so not able to look it up without this being deleted. But I'm sure if u have an 01 Aurora you have an air injection problem too almost all do his many miles ya got I just hit 111111 lol took a pic at 100000 and that not very often u get to see that let me know if you have gotten your trouble codes do you have a vented battery and if not any problems with electrical and do you still have the stock Radio
#30 of 34 Re: '95 AURORA TRANSMISSION AND CHECK ENGINE LIGHT [balt102484]
Mar 06, 2012 (1:21 pm)
I had the same problem and it turned out to be a relatively inexpensive fix. It was a solenoid that was causing the problem... the parts were like 130 and the labor was about 120.
#31 of 34 Re: 2001 Aurora Transmission hard shifts [viznes]
Mar 06, 2012 (1:48 pm)
Not much new to report on my original problem, as it does reappear now and then (several times per year), generating an audible whine to go along with the jolting shifts. At 191K now I won't do anything costly to address it. I stop the car and turn off the engine, and then re-start after a minute or two, and the problem disappears. It's like there's a blockage on an intake that gets stirred up once in a while causing a starvation problem that affects shifting. Shut it off and the blockage falls away. Or so it seems. I note that the fuel economy is adversly affected too, when it is acting up. The posts referenceing a torque converter solenoid problem really sound like they are on the right track.
#32 of 34 Re: '95 AURORA TRANSMISSION AND CHECK ENGINE LIGHT [balt102484]
Jul 24, 2013 (8:00 am)
I have a 2001 aurora and mine is doing the same thing my dad said it is the Belt inside the transmission that is slipping,which they will have to go inside the transmission to fix. Hope this helps
#33 of 34 2001 Olds Aurora transmission shifts
Oct 29, 2013 (8:06 pm)
I have a 2001 Aurora with a 3.5 Litre engine and I believe it is the 4t65e transmission. A couple of days ago, the car suddenly shifted back into second gear while on the highway. It did have some harsh or different shift patterns up until I cleared the codes. Now, the car goes into gear well. It shifts into second gear normally , but that is where it stays. It will not upshift further. The codes it did have were P0716 (Input/ turbine sensor out of range). Code P1811 set also. (Maximum adapt and long shift) As I understand it P1811 is a limp in mode that the trans goes into to protect itself by raising pressures. What happens now is with the car starting in Drive, 1-2 solenoid is on as is the 2-3 solenoid. According to the scanner when the car shifts into second gear, 1-2 shift is immediately shows off. Scanner shows car is now in second gear. As you accelerate further, the 2-3 solenoid switches to off and the scanner is showing that the car is in 3rd gear. However, the car does not physically shift into 3rd. It stays in second. As you accelerate a bit more , the scanner shows the car being in 4th gear. However , the car is still physically in second gear. Reverse and the 1-2 shift is the only thing that seems normal. No actual shift happens after that and the car only revs higher.
I only took it for a short drive to test it and no codes reoccurred. I have to check the data to see if it shows any kind of signal relating to that P0716 code. Could that be my only problem or does anyone knowledgable of these transmissions think there are more issues based on the info I have provided. I suppose even anyone's previous experience with perhaps the same issue would be appreciated.
#34 of 34 Re: 2001 Olds Aurora transmission shifts [b2200]
Nov 10, 2013 (8:29 am)
To follow up my last post, I have found two problems with this transmission. A common problem with regards to fourth gear is that the fourth gear hub shaft has splines which are prone to shearing and thus slipping. This has been a problem up to 2003 when they updated the replacement part to a more hardened shaft.
My loss of third gear was in the 3rd gear clutch pack where I found the clutched to be completely burnt out. Replacement of the above items and I now have all four gears back.