Last post on Aug 01, 2013 at 9:09 PM
You are in the Chevrolet Silverado & GMC Sierra
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Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Truck
#139 of 272 Vibration and noise bulletin
Nov 06, 2008 (5:22 pm)
Had it 12 months bought new 5.3L auto. Been in shop 8 times for vibration and noise problems at 1500 and 2000 rpm, at 1500 rpm I shift down so I just stay in 8 cyl just to avoid noise.
Got the runaround at first then they handed me a bulletin #06-06-05-001B that states vibration and noise is normal when engine is in 4 cylinder . I belive thats their new way of repairing problems just write up a bulletin. I was also in for a vibration at 60 mph (noticed mirrors shaking), they replaced tires seems to have worked. Been a Chevy man since first truck in 87 very dissapointed on this one.
#140 of 272 idle vibration
Dec 03, 2008 (1:52 pm)
I bought a 2007 Silverado Z 71, V8 5.3l with fuel management system, crew cab, last year and as soon as I put about 5000 miles on it a vibration started. When I come to a stop and the RPM drops to about 500 there is a vibration and it's not a constant vibration, it's an on and off vibration, at times it's more on than off.
I read on-line that changin the stock spark plug wire with a Taylor 8 or 10mm wire will help, and at the dealer they told me that if I do that I will void my waranty.
Has anybody else experienced this problem, or do you know how to fix it?
#141 of 272 Re: idle vibration [cata11]
Dec 03, 2008 (2:08 pm)
The changing of the wires sounds plausible. I'd use Magnecore myself however it's up to you. The stock wires aren't the greatest and you might also want to change the plugs while you're at it.
As far as the dealer voiding warranty...who did you talk to at the dealership? And would they put that denial in writing? I seriously doubt it. Plugs and wires are consumable items and are covered under the Moss Magnuson Act which prohibits the manufacturer from forcing you to use their products by voiding your warranty.
Since it seems to be an idle problem, you might also want to check/clean your idle air controller.
#142 of 272 Re: idle vibration [cata11]
Dec 05, 2008 (7:21 pm)
I just recently bought a 2008 Z71 4x4 regular cab and has the same problem on idle like yours. I went to the dealer and they calibrated the spark plugs and told me that if it continues, which it did, that it is normal. So I went again and they said that its normal and theres nothing they could do to it and that supposely all the trucks do the same thing. Don't know if I should take it to another dealer. I just don't know what to do. The truck just has 800 miles on it right now. If you find a solution, please let me know. I feel bad because it is a new truck and I'm already having this problem.
#143 of 272 Re: idle vibration [cande3]
Dec 19, 2008 (3:53 pm)
I know two more people at work that own 2007 silverado trucks, one of them has a 6.0L V8, and they both have the same vibration when the truck idles. I use mobil 1 5W30 fully synthetic oil in my truck and it seems to make a slight difference. From what I gathered changing the spark plug wires with an 8mm more performant set will supposatly take care of the problem. Some mechanics seem to believe that it will help and some say that it will not make a difference, and I haven't done the change yet so I do not know.
Let me know if you hear anything else or if you change you spark plug wire set. Thanks.
#144 of 272 Re: 4.8L Tipping Noise [gumpp08]
Dec 28, 2008 (4:45 pm)
A friend was the maintenance supervisor for Northern Natural Gas and recommended that I dump a quart of lacquer thinner in the gas tank when filling up the tank. Ran much better after that and no noise. Better gas mileage too. Oh I researched his recommendation and since the lacquer thinner is made from toluene, (is a known cancer causing agent so don't spill it on your skin, duh) basically it is a detergent for your engine. cleans the heck out of it without harming anything. since it is oil based just like your fuel.
#145 of 272 Re: I need help from an expert on a noise my 03 Silverado is making. [gmcjoe]
Dec 28, 2008 (4:50 pm)
Mine did the same thing, I had it replaced with a new one from a qualified mechanic...had to drop the tank to do it. That solved the problem, no more sound from it.
#146 of 272 Re: Shaking at 40 [sedaman]
Dec 31, 2008 (9:26 am)
I'm from Quebec Canada, and have a mix of steering/vibration/wheel problems with 2005 sierra 4x4.
have been hearing clunky sound from left front wheel and rough ride since 20,000miles
Dealer couldn't or wouldn't identify the problem.
Then had the lube job done, then some sort of column repair and still not up to par.
Then went to an independent shop where they found that the bushing for the left side torsion bar was totally finished. Last night started to get a serious grinding noise from the same area, perhaps a bearing or CV joint, but I suspect it is all related. Some serious flaws going on here.
Has anyone else checked /and or had torsion bar problems?
Also, limited slip doesn't always work
Frustrated and pissed off
#147 of 272 Re: thumping from drive line @ 40+ mph [painkiller]
Dec 31, 2008 (9:42 am)
I have this same problem. GM dealer di not find anything, but another independent mechanic found that the torsion bar bushing was finished, i seen this myself. That was 2 months ago and now seems like I'm having a wheel bearing or CV joint problem or brake caliper, as last night something was starting to grind and smell behind the same driver side wheel It just never ends, am thinking it is all related somehow.
#148 of 272 Re: 06 Sierra Z71 Front End Grinding/Rattle [toddtipton]
Jan 13, 2009 (10:38 am)
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.
Same truck (2003 4X4), same problem...Has anyone found a solution to this mysterious noise?