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Chevy Silverado and GMC Sierra Transmission Problems

1489 messages,  Last post on May 23, 2013 at 1:03 PM

You are in the Chevrolet Silverado & GMC Sierra Forum.

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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Messages Page 139 of 150

#1372 of 1489 Re: Totals are out! [azmithe] by chuck1

Nov 24, 2012 (8:52 pm)

Replying to: azmithe (Nov 24, 2012 6:37 pm)
Your car is twelve years old....not that many miles for the year, you obviously do alot of city driving. HOW LONG SHOULD GM BE RESPONSIBLE in your mind?
 
All those short city hops with the tranny shifting up and down.
 
Same question for your friend's truck with 102K on it.

#1373 of 1489 Re: 20 trips to the dealer and now.... [jjacks] by bmarszal

Nov 25, 2012 (4:16 pm)

Replying to: jjacks (Jun 03, 2012 10:10 pm)
hello could you give me the spider specs please.I have the same problem with my truck and the tech said no specs and the clunk is driving me nuts thank you Bill

#1374 of 1489 Re: Totals are out! [chuck1] by Lady3bglover

Nov 25, 2012 (5:16 pm)

Replying to: chuck1 (Nov 24, 2012 8:52 pm)
Thank you... I was thinking the same thing.

#1375 of 1489 Shifting issue when transmission is cold by jbickham

Dec 03, 2012 (9:47 am)

I have a 2012 GMC sierra. When the transmission is cold and i accelerate at a descent rate, not hard but more than a slow takeoff, when shifting from 2nd to 3rd it takes a while to engage into 3rd and the motor revvs up. When the tranny is warm, it is fine. Is anyone else having this issue. I have just over 5000 miles on the truck. It does not have to be cold outside, just a cold tranny. I can make it do this every time. if i accelerate slowly, it shifts fine.

#1376 of 1489 Re: Shifting issue when transmission is cold [jbickham] by gmcustsvc

Dec 03, 2012 (12:18 pm)

Replying to: jbickham (Dec 03, 2012 9:47 am)
Congratulations on your new Silverado!
 
Hopefully other owners will chime in soon for you; if you decide to get this checked into at your dealership let us know as we're happy to work with you through that process.
 
Sarah, GM Customer Service

#1377 of 1489 Re: Shifting issue when transmission is cold [gmcustsvc] by jbickham

Dec 04, 2012 (5:06 pm)

Replying to: gmcustsvc (Dec 03, 2012 12:18 pm)
I just dropped it off at my dealer. Hopefully they'll have an answer for me tomorrow.

#1378 of 1489 Re: Shifting issue when transmission is cold [jbickham] by jbickham

Dec 04, 2012 (7:05 pm)

Replying to: jbickham (Dec 04, 2012 5:06 pm)
I did run across a Tech Service Bulletin on the web:
 
2012 Gmc Sierra Power Train Service Bulletin 347107
 
NHTSA: Action Number: 10045063 Service Bulletin Number: 347107
Report Date:
Jun 01, 2012Component:
Power Train
Summary: Gmc/chevrolet: some trucks, equipped with automatic transmission 4l60e, may experience slipping, missed or late shifts in 3rd and 4th gears due to possible 3-4 clutch distress. *pe
 
this describes my problem exactly...but unfortunately it doesn't say what is being done to fix it. Hopefully it won't require a new transmission.

#1379 of 1489 Re: Shifting issue when transmission is cold [jbickham] by chuck1

Dec 04, 2012 (7:52 pm)

Replying to: jbickham (Dec 04, 2012 7:05 pm)
It sounds by the symptoms you are describing you have a 6 speed transmission and not the 4 speed. If you have the 5.3 motor then you do indeed have the six speed. The hesitation between 2 to 3 seems to be "common" among the model years that have he new six speed. The good news is it happens only when cold. In addition, it's a software issue and not a mechanical one. It doesn't seem to affect the longevity at this time.
 
I am an owner of a 2011 Silverado and am no way affiliated with GM.
 
Don't worry about it and enjoy your new truck!

#1380 of 1489 Re: Shifting issue when transmission is cold [chuck1] by jbickham

Dec 04, 2012 (8:05 pm)

Replying to: chuck1 (Dec 04, 2012 7:52 pm)
Yes it is the 5.3 with 6 speed. It does it ONLY when cold. It performes flawlessly when at normal temp. I hope you are right. I wen t through transmission problems in 2003 with a brand new car we bought and don't want to go through that ever again. I was trying to choose between a Tundra and Sierra when i bought this...i dont want to regret going with the GMC...7k cheaper for the GMC, better warranty and who needs to tow a space shuttle anyways? thanks for the info!

#1381 of 1489 Re: Shifting issue when transmission is cold [chuck1] by jbickham

Dec 06, 2012 (2:59 pm)

Replying to: chuck1 (Dec 04, 2012 7:52 pm)
Well, i just spoke with the service guy at the dealership. They finally got it to mess up. He said they have been on the phone with GM multiple times today and have no clue what caused it. He says it may be the selonoid or valve body but they arent sure, it hasn't created any trouble codes. They have compared data with other trucks and nothing seems out wack. He says there are no tech bulletins out about this issue. He referred to it as "flaring" and not slipping, more of an extended shift. So i guess now i just wait......just my luck

Messages Page 139 of 150

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