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  1. #1

    Default 2010 Silverado extended w/5.3 issues

    My issues are growling when engine goes to V4. Goes away when back to V8.
    Thump in the rear of truck like spare is loose. Spare isn't loose. Are the springs binding and then unbinding?
    Transmission keeps shifting hard then slipping and when decelerating it upshifts.
    Dealer says onstar will detect but it hasn't and the issue remains.
    Interior noise from passenger side of vehicle. Dealer already replaced baffles. I test drove another like vehicle and the sound wasn't there.
    Left truck at dealer all day and nothing has changed.
    I noticed that other owners are experiencing similar issues. Can we get answers?

  2. #2

    Default

    I would be happy to look into this for you. In order to take further steps, I will need some more specfic information. If you could please send me your full name, address, phone number, the VIN for the vehicle, current mileage, and name of the dealership that you are working with via private message, I will be able to look into this further. Thank you again and I look forward to hearing from you.

    Tricia, GM Customer Service.

  3. #3

    Default

    Quote Originally Posted by GM Customer Service View Post
    I would be happy to look into this for you. In order to take further steps, I will need some more specfic information. If you could please send me your full name, address, phone number, the VIN for the vehicle, current mileage, and name of the dealership that you are working with via private message, I will be able to look into this further. Thank you again and I look forward to hearing from you.

    Tricia, GM Customer Service.

    Thanks Tricia hope you can shed a little light on these issues.

  4. #4

    Default

    Quote Originally Posted by Coach24 View Post
    My issues are growling when engine goes to V4. Goes away when back to V8.
    Thump in the rear of truck like spare is loose. Spare isn't loose. Are the springs binding and then unbinding?
    Transmission keeps shifting hard then slipping and when decelerating it upshifts.
    Dealer says onstar will detect but it hasn't and the issue remains.
    Interior noise from passenger side of vehicle. Dealer already replaced baffles. I test drove another like vehicle and the sound wasn't there.
    Left truck at dealer all day and nothing has changed.
    I noticed that other owners are experiencing similar issues. Can we get answers?
    Another member had a noise when going to V4 mode and it was the heat shield rattling. The growl noise could it be your exhaust? The bump in the rear does it feel like some has rear ended you slightly..like a tap or bump..if it is its your yolk on the drive shaft. I had that same issuse on my 08 and there was a Technical Service bulletin on it. The dealer replaced the yolk and it went away.

    It may apply to your year also.


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  5. #5

    Default

    That rear -end bump happens on my truck as well. I took it to the dealer 2 weeks ago and they said it was the splines, they cleaned and greased them.... However same issue. Thanks for the yoke info, my truck is going in the shop for poor MPG tomorrow and i'll have the shop foreman investigate the yoke...

    2009 Silverado 1500
    5.3L / 3.73 G80 / 4spd / 4x4 / LWB/ Ext Cab / HD Tow-Haul
    2.25in ReadyLift Level Kit / 3in blocks/ 3500lb HellWig / 265x65x17 Wrangler AT
    K&N Filter / AirRaid MIT / MagnaFlow 2.25" Dual Exhaust / HyperTech MaxEnergy

  6. #6

    Default

    I am glad to hear that you are working with your local dealership regarding the concern. Please feel free to keep me updated. Thank you in advance.

    Tricia, GM Customer Service.

  7. #7

    Default

    Quote Originally Posted by sstoner911 View Post
    Another member had a noise when going to V4 mode and it was the heat shield rattling. The growl noise could it be your exhaust? The bump in the rear does it feel like some has rear ended you slightly..like a tap or bump..if it is its your yolk on the drive shaft. I had that same issuse on my 08 and there was a Technical Service bulletin on it. The dealer replaced the yolk and it went away.

    It may apply to your year also.
    taking to dealer this week I will add your comment to my list.
    although it feels more like rear spring is binding up than a bump from behind.

    Thansk for the information it is appreciated

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