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2001 Silverado VIBRATIONS

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  • I am having the same wheel/tire vibration that many of the members have experienced. Counting the original set, my truck has had 5 sets of new tires put on in 36,000 miles. I'm trying to collect as much court case, arbitration, engineering or related information as I can on the matter. I will be entering arbitration with GM in the coming month. Any experience you may have would be helpful!
  • rayt2rayt2 Posts: 1,208
    Try here for ammunition on GM http://www.gmpistonslap.cjb.net . It should provide links to sites for your vibration problem also.


    Ray T.

  • jaguar0027jaguar0027 Posts: 387
    Just picked up my truck from the dealer. It was there for three days...

    This is what I requested.

    Fix the vibration\shimmies in the steering wheel and truck.
    Fix the clunk in the steering wheel.
    Engine consuming too much oil.
    Right side view mirror. Defroster not working.
    Rough shift between first and second. Clunk when putting into reverse and downshifting from second to first.
    AC blows warm air when driving for awhile or at low speeds.

    Now I know that there ARE TSB's for most of these and I told them so which was a good thing. This is what they did...

    Fixed clunk in steering wheel per TSB Replacement.. although they service manager said it was just lubricant that is used.
    Rough shifts... Flashed with newest calibration program.

    For the clunk in the shifting and going into reverse, they ordered me a new nickel plated slip yoke as per TSB. Although they gave no ETA and said they are hard to get hold of. (Not fixed at time of truck pickup)

    Ordered a new side view mirror (Not fixed at time of truck pickup)

    AC.. just added more freon.. well I know its not freon anymore but I cant remember the name of the stuff... LOL

    Gas pedal sticking... hesitation.. replaced with new throttle body to correct binding plates.

    Excessive oil use replaced with new PCV valve per my request and TSB for it

    Oh also lubed passenger door. Its squeaked since they replaced with new door checks last month.

    AS FAR AS THE SHIMMIES AND VIBRATIONS. They claim its the tires\wheels supposedly as per the EVA II which I asked to be used per your request. He also mentioned that since I DID NOT have the stock Firestones but the Pirelli Scorpion AT's he would do nothing. He also noted the tires were cupped/chopped. I told him these tires were better than the stock POS Fstones. He told me to go back to the place where I got them and complain which I said was BS.

    Or... if I put the Firestones back on.. he said "then its my problem" I said I will see you soon since I have to go back for the mirror and the slip yoke.

    Now... what should I do??? Put the Firestones back on.. which I dont really want to do because the truck still did it then.. or.... put them back on and let him see what BS line(s) he feeds me then.. Or do I call GM Customer Assistance and tell them its BS and that I should NOT have to take these tires off for him to fix the problem. I know he is just using it as an easy way out...

    Obyone.. your thoughts??? Or anyone else.. feel free to add..

    Thanks.
  • obyoneobyone Posts: 8,065
    In comparison, are the Firestones in better shape? One of the TSB's for vibrations require that the stock tires be on the truck for evaluation purposes. It's really up to the dealer though cause mine said that the Michelins are better tires than the Generals and went ahead and worked on the vibrations without going back to the Generals. They didn't have a problem with GM either with regards to warranty issues cause of the Michelins.

    What's interesting is that you had the tires balanced on a Hunter...yet the dealer says its the tires with data supporting it from the EVAII. What's also interesting was that the tire dealer said that if the balancing didn't work he couldn't do anything else.

    FYI,with the EVAII, my dealer also found a tire that was "causing the vibrations" by being out of round. They replaced with a new one out of warranty. However, the vibration persisted. Ever consider getting a second opinion from another dealer?
  • jaguar0027jaguar0027 Posts: 387
    In my opinion are in way worse condition than the Pirelli's. So I dont really know what they hell they are talking about with regards to cupping\chopped tires. By eye they dont look it anyway...

    That's interesting about the TSB you mentioned and having the OEM Fstones on the truck for evaluation. I guess Michelins are the ticket.. I told you awhile back that I should have shelled out the extra bucks.. LOL

    Anyway, I have thought about going to another dealer however.. I dont want the Fstones regardless. In addition, I did not see any data from the EVA II, the service manager at my dealer just 'told me that'. I saw no hard evidence of it.. even when I asked.

    So I am thinking of yes either going to another dealer or... when I go back for the slip joke.. oh yeah I mean yoke and mirror have THEM but back on the Firestones and let THEM mount and balance to see if they can figure this one out.

    Do you think I should call GM directly with any of this? Or will they tell me go scratch since I changed the tires...
  • obyoneobyone Posts: 8,065
    however, GM customer assistance is a company that is contracted by GM to handle complaints. They are not part of the organization and whether they can assist you I'm not sure. I do know that if I have a problem, I don't bother calling them. All they will do is put you on a conference call with the service manager. They do feel for you and seem sincere...course that may not be enough.

    One thing I've also noticed is that the parts take weeks on end to be delivered. Funniest part is when I'm pissed enough to call...it suddenly and magically appears.
  • Does any one know if the base frame used on the 1999 CK series trucks were the same or different?

    P.S. As far the tires are concerned, I have a new set (set number five) of GM spec. Firestones on my truck right now. The service manager at the dealer and ABM are telling me now that if only I had Michelins on my truck, all my problems would be solved. From the factory it came with Goodyear R/T's ???
  • obyoneobyone Posts: 8,065
    So instead of installing a 6th set, trade the 6th set towards a set of Michelins. If they tell you its not possible, they would be distorting the truth. I traded my 4th set of Generals for a set of Michelins and paid the difference. Course the regional GM rep approved the deal cause everyone was getting tired except General tires who kept sending set after set after set.
  • jaguar0027jaguar0027 Posts: 387
    Michelins. I am doing so most likely next week. I will post back after the swap with the results....
  • evilzevilz Posts: 5
    Seems to me that the vibration occurs on my truck when I'm on a cement freeway. I think it's the wheel base in conjunction with the seams in the slabs. When I'm on an asphalt freeway, no problem regardless of speed.
    2 WD, Ext cab, 5.3
  • obyoneobyone Posts: 8,065
    There is a difference.
  • jaguar0027jaguar0027 Posts: 387
    Had the Pirelli Scorpion AT's swapped off of my truck this week for Michelin LTX M\S. And guess what.... NO VIBRATIONS!!!!!!!!!!!

    Unbelievable that after all these months, the damn tires were the cause. Just had a front end alignment today to boot which was pretty far off.

    My Rado now rides, and handles like a Caddy!

    A big thanks to Obyone for helping me to figure this one out!!!! You are the f#@%ing man Oby!

    When I come to Hawaii we gotta hook up for some cold ones.

    Now its get the nickel plated slip yoke done, need my brakes checked (pedal seems low), replace passenger mirror, and oh yeah the ole GM engine knock.... LOL

    Still love my truck though! :)
  • obyoneobyone Posts: 8,065
    Glad everything worked out with your truck. Looks like I won't be trying out the Pirelli after all. hehe!
  • tonyytonyy Posts: 26
    Did you read #2005 & #2006 @ chevy silverado problems?
  • jaguar0027jaguar0027 Posts: 387
    Im pretty glad too. Especially after all of the time wasted/spent at the dealer and tire shops.

    The Pirelli's are good tires overall. Excellent traction etc, but based upon my experience and problems, I would frown upon recommending them to you or anyone else.

    Tony - Yes I did see the posts!!! :)
  • tafostertafoster Posts: 13
    I have the same problem on cement freeways especially at speeds over 65mph. Gets oscillating/bouncing so bad I have to slow down, whole truck is vibrating/bouncing. Steering wheel gets oscillating so bad feel like I could lose control. What is causing this problem?
  • kcowboykcowboy Posts: 33
    gm puts out new trucks with so many problems, isn't there any type of quality assurance in the manufacturing of this product.
  • tafostertafoster Posts: 13
    Needed to qualify my response in #77. Not ALL cement freeways cause the bouncing/oscillations just certain ones. In South CA, the 710 freeway is the worse but it gets tons of truck traffic from the harbor. I'll go out of my way to avoid driving on it or I have to really slow down. I saw other posts mentioning similar problems with 'tar strips???' or expansion strips?? My question is basically is there something that can be done to lessen the problem; tires, shocks, etc. I still have all the stock stuff ('01 x cab)
  • akjbmwakjbmw Posts: 231
    While its not a 2001, my '98 behaves similarly but perhaps not as bad. My observation is that on the bouncy section of a local freeway, over 68 mph smooths it out. SoCal freeways are worse, but I don't get to go that fast to see if the smoothing is the same. My Velvet-Ride shackles may change the resonance as well.
    ExtCab K1500 SB
  • txyank1txyank1 Posts: 1,010
    my 2001 Sierra does it at 70 mph. My '99 did it at 65. And it's a very small window. Faster and slower it's not there. As you say, not on all cement roads. As a matter of fact the spot that I drive every day where it's the worst is only in one lane! It's been mentioned here previously that the "Velvet Rides" do help. I recently discovered that with a few hundred pounds of weight in the back my bounce all but disappeared.
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