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Chevy Silverado and GMC Sierra Transmission Problems

506 messages,  Last post on Dec 01, 2009 at 1:57 PM

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What is this discussion about? Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Transmission, Truck


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#353 of 506
Re: 2008 Silverado [burbankfowlers] by obyone
Oct 28, 2008 (11:47 am)
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Replying to: burbankfowlers (Oct 28, 2008 10:47 am)

I've had a service manager and even a service manager and a tech ride with me to help illustrate the issues I had with my truck. It's often frustrating to leave your truck there with a description of what's wrong only to pick up the truck and find on the invoice "could not duplicate problem".
#354 of 506
Re: 2008 Silverado [obyone] by burbankfowlers
Oct 28, 2008 (11:56 am)
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Replying to: obyone (Oct 28, 2008 11:47 am)

After being stoppped at an intersection, the first time it happened I thought I had been rear-ended, the jolt was that severe. And then trying to take off, it feels like it kicks into neutral first. The service tech first said "all four-wheel drives do that in the rear end" You know what, mine isn't a four-wheel drive. It is a standard, two-wheel drive Silverado. Every time you put pressure on to accelerate it kicks into what feels like neutral. But it is that jolt in the rear end that concerns me. They just tell me that is the way it works. I don't get it, something isn't right, why won't anyone listen. Perhaps they know that this will keep working just until the warranty runs out, then it isn't their problem????
#355 of 506
Re: 2008 Silverado [burbankfowlers] by obyone
Oct 28, 2008 (1:54 pm)
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Replying to: burbankfowlers (Oct 28, 2008 11:56 am)

The clunk you are describing has been around since the 1999 redesign. It clunks on starting acceleration and on stopping caused by play in the slip yoke. It may also clunk upshifting from first to second. There are several service bulletins addressing this issue especially since it has been around for such a long time.
 
The normal answer that they usually give is that the drive train is new so you need to give it up to 10K miles to break in. If that were true GM wouldn't have come out with a special additive for the rear end.
 
Since no two dealerships are the same you might want to take your truck to another dealer or take the current service manager out on a test drive to verify that it actually does clunk. It would be hard to deny the clunk with him in the truck though I've seen them try.
#356 of 506
Re: Slip Joint Problems [rrossi] by medic979
Oct 28, 2008 (5:29 pm)
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Replying to: rrossi (Sep 29, 2008 12:16 pm)

my 2008 sierra did the same thing at 2000 miles. The dealer lubed the slip yoke and it fixed the problem but they are skeptical. They said that gm is working on the problem. Tell your dealer to look up PI & bulletin .....PIP 4020D.
If they told you this was normal, the need to fire the mechanic because my dealer found it right off the get and knew how to fix it.
 
Good luck
#357 of 506
Re: 2008 Silverado [burbankfowlers] by medic979
Oct 28, 2008 (5:41 pm)
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Replying to: burbankfowlers (Oct 28, 2008 10:47 am)

My 2008 sierra does the same thing. Tell your dealer to look up bulletin PIP 4020D
 
The slip yoke needs to be lubed. It worked. My dealer said this a temporary fix but gm is working on a permenant fix. You would think that if gm would sell a truck for $32,000 it would work right. I should of bought a Toyota. Know wonder their stock is at $5.
 
good luck
#358 of 506
2007 Silverado Transmission Cooler by nerd
Oct 30, 2008 (6:01 am)
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I need to install an auxiliary transmission cooler on my 2007 Silverado with 4.8L engine and auto trans. I see that GM offers a cooler at a competitive price, but the dealer wants about $200 to install it. The photo indicates it comes with the supply and return lines that run all the way from the transmission. Is this GM cooler that hard to install? I would appreciate any advice. Thank you.
#359 of 506
05 Z71 SILVERADO by tahoe10
Nov 14, 2008 (10:50 pm)
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just bought a 05 silverado Z71 with about 71000 miles. i was wondering why/if its suppose to make a clunking noise when shifting in to 4lo? its my first truck.
#360 of 506
Re: 05 Z71 SILVERADO [tahoe10] by 9_376_Slvrdo
Nov 22, 2008 (1:58 pm)
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Replying to: tahoe10 (Nov 14, 2008 10:50 pm)

Yes, that's normal when you are engaging low range. It's just the transfer case changing to the lower ratio gears needed for 4L.
#361 of 506
2001 gmc 3500 HD 6.6 duromax with allson transmission by hcamaro
Nov 30, 2008 (3:54 pm)
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It has 230000 miles on it. when i come to a stop the transmission down shifts into 1st really hard. other then that it shifts great. if there is anyone that can help me please tell me what this could be.
#362 of 506
2000 silverado will not go into gear by dkelley85
Dec 05, 2008 (7:54 pm)
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I have a 2000 silverado. I was driving it the other day, then a loud sound came from under the truck, now I can put the truck into any gear, but it will only move in reverse. I can put in into drive, 1st, 2nd and 3rd, nothing happens. When I put it into PARK, it acts normal, the truck will not roll. Any suggestions!?

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