Last post on Jan 25, 2013 at 11:52 AM
You are in the Pontiac Bonneville
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Pontiac Bonneville, Sedan
#476 of 2268 High speed vibration problem: 2000 Bonneville SE
Aug 17, 2001 (7:02 am)
I've had this vehicle since brand new - just 1 year at 17,600 miles now - no accidents, curb hits, etc. The thing has just been balanced re-aligned; I had to put new tires on at 16,800 miles at the same time because the alignment was so bad (this is a dealership goof that I am trying to get Pontiac to fix! - but they now refuse. The vehicle vibrates rapidly (shimmys) at speeds over 50mph - gets way worse over 60. I can feel it in the steering wheel, accelrator pedal, seat, even.
Pontiac refuses to look further into the problem - it's been in like 5 times - I've been to two different dealerships now. One stated "the car is normal" - the other says "we won't find anything."
Anyone know of this type of problem on the 2000/2001 Bonneville?? Anyone have any ideas?? (I am now thinking: shocks, suspension, transmission, other...???)
#477 of 2268 Funny thing....(giamomj)
Aug 17, 2001 (1:40 pm)
I just noticed a shimmy on my '99 SE this aftenoon that's occuring at 50 mph. Now I have 46k miles on it which is a lot different than your 17k. I'll have to have my mechanic take a look at it. I don't think mine is quite as eratic as they way you describe yours. Good luck w/it & keep us posted.
Aug 17, 2001 (3:18 pm)
I would go to a well-reputed independent suspension shop and get a written diagnosis of the problem. The bring that diagnosis back to the dealership and make Pontiac swallow it.
#479 of 2268 Shake Rattle and Roll ?
Aug 20, 2001 (12:09 pm)
Well, if it isnt your alignment, it could very well be your tires.
a common cause of "we cant find the problem" shimmy is bad rubber. either poor balancing or seperating belts inside, something along those lines.
Aug 20, 2001 (12:28 pm)
From one of the Shakers...Just yesterday the check enging light started flashing on my '99 se, and then stayed on after a while. I cornered my mechanic after church yestereday & he listened to it and said it's missing and probably needs wires or plugs. I believe the plugs are suppose to last 90K+ if that's at all possible. I'm suppose to drop the car by his shop tomorrow. In the meantime, this morning the check engine light didn't come on, but it's still running sluggishly. I believe my Michelins are fairly new, & I presume balanced correctly. I'm assuming/hoping the fix will be something minor.
#481 of 2268 Theft Lock
Aug 20, 2001 (3:34 pm)
The only way to clear a theft lock is to take to a dealer. He can read a code with a special key. He will have to call Detroit with the code, prove he is a dealer and then they will give him the code to reset it to the starting point. They did it for me for free.
#482 of 2268 Check engine light
Aug 20, 2001 (3:37 pm)
The check engine light means a part of the emissions stuff is not working. I got it when the dealer broke a wire changing the oil.
#483 of 2268 Check Engine Light (vogel22)
Aug 20, 2001 (3:53 pm)
Funny thing; I just had my oil changed recently... I have it changed about every 3k or so. - Can that light mean anything else, or is it 100% emissions related? Thanks for your help.
#484 of 2268 giamomj #465 / theiceman #467
Aug 20, 2001 (3:56 pm)
My biggest disappointment in reading these posts is when there is not enough information provided to be of help. Any recommendations just become shots in the dark. Infomation such as the last 8 numbers in a VIN number would provide year, plant, and build sequence( would allow readers to see if the car is built near their own car), mileage, engine, tire size, wheel type, and other info is often left out. This info can be added to people's profiles so it dosen't have to be repeated. Another issue is the difference between the manufacturer and the dealer. The manufacturer builds cars for the dealer, cars that they believe will not break down, and they maintain customer assistance centers to tell the owners to go to the dealers. The dealers, good or bad, are on the front line, and have the responsibility to fix things. The manufacturer dosen't "swallow" things. The dealer "swallows" things an hopes to get reinbursement from the manufacturer. Also no one ever seams to come back and end the story.
Getting down of my soap box, while I was getting the brakes done on my wife's 92 Bonneville , I did some research on some recent topics. I hope the infomation helps.
#485 of 2268 SHAKES/VIBRATIONS 2000-2001 BONNEVILLES.
Aug 20, 2001 (4:15 pm)
GM has issued a very complex service bulletin dealing with shake/vibration felt in the steering wheel, floor or seat between 60-72mph. (This sounds just like your description Michael in #465). This is for the GM large cars which icludes the 2000-2001 Bonneville. Its a very long procedure that could take up to 5 or more hours to perform and must been done completely and in order. It involves checking Tire Radial Force Variation. It talks about the usage of a special machine to check this. A Hunter Engineering GPS9700 balance/road force measurement machine. I surfed over to www.Hunterengineering.com, and found lots of info about the machine and the condition. The best thing there is a locator to find someone who has one. (If you are thinking of asking for one for Christmas, I found a site selling them for $12,730).
Michael, #465, you do not mention how many tires you had replaced, or if the condition was there before the tires were replaced. But here is my recomendation. Find out if your selling dealer has one of these machines. If not use the locator to find one at another Pontiac dealer. Make an appointment with them for the procedure and express your belief that it should be covered under warranty. Give them plenty of time to perform the procedure properly. The bulletin does imply that this procedure would be covered. (Keep in mind that aligments are only covered between 500 and 7,500 miles, and wheel balancing is only covered to 7,500) If there is not a Pontiac dealer close by, find another GM line and have your Pontiac dealer sublet the work to them. Good luck and please post back with results.