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Pickups Chevrolet Silverado & GMC Sierra Chevy Silverado and GMC Sierra Noise and Vibration
172 messages, Last post on Oct 28, 2009 at 1:49 PM
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Replying to: kyhiker65 (Mar 18, 2008 2:40 pm)
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Replying to: obyone (Mar 18, 2008 11:58 pm)
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| HI--I purchased a lightly used 2004 Sierra off of a GMC dealer about 6 weeks ago. It has the big block 496 and the Allison 5 speed and is very fun to drive and I assume that come camping season it will pull my camper effortlessly. In the last couple of days though I have noticed that if I lightly apply the throttle from a dead stop I get this minor thump or thunk. I have asked people riding if they have felt or heard it and nobody notices it. It is there and I certainly notice it---so my question is whether anybody else has this combo and notices it or whether it is "normal" with these Allisons. It almost feels like what a bad u joint would do...... I have also read alot about the torque converter bolts loosening on these trucks. Hellllllllllllllllllllppppppp I love the truck but don't want any trouble on a 4 year old rig with 40,000 miles. | |
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Replying to: nsauceman (Jan 08, 2008 8:19 pm)
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| i have a 94 serria 4x4 with overdrive auto trans,at approx 105 kph and 2000 rpm the front end shakes so violently i think its going to come apart,if i let off or step on the gas it quits as long as i stay out of the "sour spot",just put new tires on it and the shop didnt say anything about bent rims,im lost | |
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Replying to: sjsracin (Feb 18, 2008 7:19 am) |
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Replying to: jhawkes2 (Mar 08, 2008 3:33 pm) |
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Replying to: kyhiker65 (Mar 19, 2008 1:37 pm) |
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The truck is a 2006 5.3L single cab Z71 with 60,000 miles on it. About 2 months ago I noticed a rattling/tinging metallic sound coming from the front left wheel area while driving at low speeds. 2 weeks ago I was driving at 50mph and a loud rubbing/grinding noise started coming from the same area. Almost sounded like the tire was rubbing the fender. The noise comes and goes. It will drive fine for a couple of days and then the noise comes again. It sometimes sounds worse than others. It does it at all speeds. I have carried it to the dealer 2 times and the truck wasnt making the noise when I got there. They say they can't work on it if it isn't doing something major. Applying brakes does not affect the noise. Sometimes it sounds like the whole front drivetrain is about to lock up. The noise sounds like it is in sync with 1/2 of a wheel rotation. I am not comfortable with driving the truck when it does this. My first thought would be a wheel bearing, but wouldnt a bad bearing cause the noise to happen all the time? Any help is appreciated.
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Replying to: brian04 (Apr 11, 2008 8:31 am) |
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