nasty front-end shudder hard acceleration from stop - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 04-25-2006, 02:20 PM   #11
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Sounds more like torque steer in your case...
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Old 04-25-2006, 04:40 PM   #12
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Quote:
Originally Posted by lash

On a more serious note, have you set a DTC yet?
no codes yet. TSB says I may or may not log a DTC with this problem. I read elsewhere that the solenoid is replaced with a superior Bosch part in this TSB.
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Old 04-25-2006, 04:44 PM   #13
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Quote:
Originally Posted by Netscion
Quote:
Originally Posted by lash

On a more serious note, have you set a DTC yet?
no codes yet. TSB says I may or may not log a DTC with this problem. I read elsewhere that the solenoid is replaced with a superior Bosch part in this TSB.
Right, I read the TSB. Just asking.

If it'* determined that this really is your problem and you can make it work for you, more power to you.
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Old 04-25-2006, 04:45 PM   #14
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Quote:
Originally Posted by BLACK94SSEi
I too have an issue with heavy acceleration. The other day, I was going about 30 MPH and mashed on the pedal to pass a slower moving vehicle. When I did, the front end pulled hard left and hard right a couple of times. It was as if I couldnt control it at all. A little scary, but I did it again to see if I could get the same result and I did but it didnt pull as hard.

I do believe I have a tranny issue, but its not bad at this point. I think its actually just beginning, but my brother said that it could be that I need new struts. Who knows for sure, but I know that its one more thing I have to add to the repair list if thats the case.

An interesting notice in difference is that I recently changed from my Ghetto golds to my summer chromes which have slightly wider tires. I noticed some tire rub on the inside of the wheel well cover (plastic) when I take tight turns, but it seems as if the steering and traction is better when im driving. Can the front end pulling be caused by the larger width tire?
I'm afraid "torque steer" is a phenomenon you will never escape. This is just one of the drawbacks higher hp FWD vehicles with unequal length driveshafts. This is also compounded by steering angle and road surface crowning/angles. The only thing you can do is anticipate and correct for it or buy a German car that has had millions of $* and years of design/engineering to counter it :p
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Old 05-10-2006, 10:12 AM   #15
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Update: Dealer Tech rode with me this morning and experienced the shudder. I also showed him a new phenomenon I found just fooling around. When the brake is held while adding throttle (brake-stand or brake-standing), after a second the rpms will drop and then the tranny will just clunk (more like a thump), almost like it was shifting to 2nd. The tech definitely agreed it was related to the shudder. She'* in the shop right now getting inspected by their top tech. Same guy who rode with me this morning, he admitted he was not a "transmission guy" and informed me most of the dealer'* tranny work is subbed out. He did seem very knowledgeable about basic auto trans operation and with/without elect. control. Hopefully with the TSB # I gave them he and the contractor will be able to figure it out. More to come....
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Old 05-11-2006, 03:03 PM   #16
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Got the car back. Service dept. acknowledges that there is a problem with the transmission but they do not believe it to be the solenoid problem mentioned in the TSB above, but rather gearset or clutchpack problem that is not "serious enough to receive a successful warranty claim". Whatever. It does seem to have cleared up a bit during straight line acceleration but I can still reproduce it in a slight turn, I rarely accelerate like this from a stop though, I like preserving my CV joints So, the consensus was to just drive it (to me: beat the pi55 out of it) until the problem becomes more noticeable (to me: until I break it) or it throws a code. Time for some more 0-60 runs. I tried last night once and pulled a horrible 10.42 sec to 60. whatever is wrong with this tranny is definitely holding it back, it has to pull better than that yes?
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Old 05-11-2006, 04:20 PM   #17
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Quote:
Originally Posted by Netscion
So, the consensus was to just drive it (to me: beat the **** out of it) until the problem becomes more noticeable (to me: until I break it) or it throws a code. Time for some more 0-60 runs. I tried last night once and pulled a horrible 10.42 sec to 60. whatever is wrong with this tranny is definitely holding it back, it has to pull better than that yes?
I assume you are saving for a new transmission or a rebuild then? Because beating the pi55 out of it now will surely hasten it'* demise.
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Old 05-12-2006, 03:40 AM   #18
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warranty until 81,000mi. 52k on it now, so hopefully I break it before then for my factory rebuilt or new tranny for free... spoke witht the sales manager and since I reported the problem before my 3k mi was up, he'* covering the $250 deductible on the warranty claim. That means $25 for anything after that up to 81k. They've been been good people.

I am having terrible acceleration times. I swear its the TC locking up too early but the dealer says no.
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Old 03-30-2011, 11:48 PM   #19
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I wish you knew exactly waht this was. I have the same problem with my 1999 Olds 88.
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Old 03-30-2011, 11:49 PM   #20
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If you start a new thread we can help ya out! but this thread is like 5 years old..
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