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Vibration 40-65 mph Trailblazer 03, Not the SPRINGS! already replaced

aldan93aldan93 Posts: 202
edited March 27 in Chevrolet
I was just wondering if 2003 Trailblazer ownwers with the straight 6 have had the same problem I have encountered, because my dealer has not figured out what is wrong yet! Vibration 1500-2200 rpms 40ish-65ish mph, THMMMMMMMMMMMMMMM THMMMMMMMMMMMMMM THMMMMMMMMMMMMM!
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Comments

  • alcanalcan Posts: 2,550
    Check the usual suspects first; driveshaft bent, dented or out of balance, front and rear u-joint angles not matched, driveshaft yokes out of phase.
  • aldan93aldan93 Posts: 202
    Hey do you work for ALCAN? Just curious?
  • alcanalcan Posts: 2,550
    Nope, just Al from Canada. LOL
  • mookie14mookie14 Posts: 252
    i had mine replaced really i did not hear the sound. um did you get it fixed??? plus mine is a 03. i do know what you r talking about. the tsb that went about coil springs??? by the way what does coil springs do anyway???????
  • aldan93aldan93 Posts: 202
    I noticed since the outside temp has gotten above32 to around 40, I don't feel the vibration, but when the temp was 0-20 I felt it, its still there. Coil springs are part of the suspension, anyway, the vibration is from the transmission, thru the drive shaft, into the rear-end! I have a copy of the service bulletin, yep, I have an 03 also
  • Anyone got a resolution to the Trailblazer vibration at 40-65mph????
  • aldan93aldan93 Posts: 202
    Nothin yet
  • 0patience0patience Posts: 1,542
    Tell your dealer to check out this TSB.
    It can give the same symptoms as a shudder at those speeds you speak of.
    It was only released a few weeks ago, so they may not know of it.

    Transmission Slipping or Torque Converter Clutch (TCC) Inoperative with No SES Light Displayed and No DTC P1870 (Reprogram PCM and Diagnose Vehicle Using P1870 Diagnostic Table) #03-07-30-001 - (01/17/2003)
  • aldan93aldan93 Posts: 202
    It does feel like it could be the torque converter? Where did you get this info? When its cold out it does feel like it is slipping? below 30 degrees.
  • aldan93aldan93 Posts: 202
    Stands for The Service Bullitin? Curious?
  • zueslewiszueslewis Posts: 2,353
    outlines a vibration at 30-50 mph where the torque converter isn't locking up correctly since it's right in that range of an upshift between 3rd and overdrive.

    Many GM vehicles, and some DaimlerChrysler vehicles, have shown this trait. Just because there is a TSB out on it, though, doesn't give the manufacturer a "get out of jail free" card - your vehicle may still have the problem, while others don't, making yours worth less to potential appraisers.
  • 0patience0patience Posts: 1,542
    That bulletin was released on GM's information system a few weeks ago. Unless a dealer tech is looking specifically for it, they may not find or see it. I have access to GM's service information, along with many other information systems. One of the perks of dealing with 800 mechanics. LOL!
  • i also have gas petal vibrations from 25-40mph right out of the showroom. brought it in today to dealer. they have a bulletin on "vibrations" it tells them to REPLACE THE DRIVESHAFT. dealer ordered part.will advise if this is the solution to our problem.has anyone with similar problem had it resolved? if so, what did the dealer actually do? please advise. the vibrations drive me crazy and i am constantly aware of this while i drive.thanks!
  • aldan93aldan93 Posts: 202
    Thats a new one I'll tell ya tomorrow, I'm bringing mine back 3rd time!
  • hi, just a quick update. front driveshaft( i'm told there is a front and rear)just came in to dealer.(took about a week to get from GM)my appointment is for march 4, i'll let you know if the vibration is gone. to clarify my specific problem: my TB HAS A GAS PEDAL VIBRATION ONLY. i do not feel any vibration in other parts of my vehicle. this vibration if felt from 20-60 mph and is constant.(it does not come and go)Springs, balancing,are not the problem. the vibrations happen when the car is either in 2 wheel drive or A4WD.(it is not a torque-converter problem)regards,
  • aldan93aldan93 Posts: 202
    Thanks for keeping us updated!
  • aldan93aldan93 Posts: 202
    Chevy/GM knows about the problem, they have no fix! I was told this today! The springs help dampen the vibration on about 65% of the SUV's, It is a massive problem! You might see a recall soon if enough people complain! My mechanic stated that almost 40% of all TB's have the problem, Not Envoy or Bravada, due to the Air Bags within the springs. So Here is what I know, the vibration occurs even worse when temp is below 30. Springs help on most people, living in warmer areas, or they are garage kept vehicles! So mine is not, the temp hasn't got above 40 in like 90 days! Also the guy stated that the other 45% haven't noticed the problem yet! Yikes! This Sucks!
  • Is this something one can notice when test driving the vehicle? I have test driven the TB 3 times and the ride was just amazing. No vibration I could notice. Is it something that develops over time?
  • rorodadrorodad Posts: 13
    Well, I just got the vehicle back from the dealer. Good and bad news for anyone concerned. First, the dealer changed my REAR drive shaft (F1280)although he originally told me he was going to replace the FRONT drive shaft.Go figure. The vibrations which WERE felt on my gas pedal have diminished BUT HAVE NOT GONE AWAY TOTALLY. Thus, I must concur with "ALAN93" who states that GM has no answer at this time in fixing this problem. I can live with the present vibration(I think)although I am aware of the vibration while I drive.I figure that fixing the rear drive shaft reduced the vibration by about 75%. Not bad, but certainly not what I was hoping for. So, WHAT NOW??? Do I take it back to the dealer and tell him I'm not happy because the vibration is still there, or do I try to live with it for the next 4 years of my lease? Do I try to make my dealer exchange this for another TB under the Lemon Law (I think it has to be brought back to the dealer 5 times for the same problem before they will possibly deal with you) ANY SUGGESTIONS ? Regards,Bob
  • mookie14mookie14 Posts: 252
    i had my springs changed and i really just a little hear the vibration. i got a 03 tblazer ls and my pedal has no vibration at all. i might see if i can get the vibration reduced but really it does not bother me alot. i think it will be a recall though on the 03s probably the 02s also just a thought.
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