Last post on May 17, 2013 at 4:20 PM
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Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Transmission, Truck
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#1248 of 1484 Re: 6 Speed Tranny in 5.3l not tuned correctly from factory! [chuck1]
Apr 05, 2012 (8:57 pm)
That's too bad, I was thinking you had a six banger for some reason. Then when your transmission took a dump, I could tell you that you shouldn't have bought it and that was how it was supposed to work, especially since it made it past the warranty period.
#1249 of 1484 Re: 6 Speed Tranny in 5.3l not tuned correctly from factory! [jjacks]
Apr 09, 2012 (8:59 am)
I'm new here but i've been reading about this issue spanning back about a year. I have the same issues with my 2011 and in my opinion the truck just has no guts. Has anyone got anywhere with GM on this issue with the transmission or found an aftermarket upgrade? Its degrading when a Kia passes you up a hill. Gm should be ashamed if they think this is acceptable.
#1250 of 1484 Re: I just an owner [jjacks]
Apr 09, 2012 (4:30 pm)
Sorry about the kudos to the wrong guy. I just agree with the person who thinks wer have been takiing it up the ## with the lousy 6sp auto Asian trannies. If its a Ford or a GM it is still bad. There just is no excuse for the companies to NOT admit their mistakes. I feel besides the engine, the trans. should be perfect. I know that the US has made a few bad trans. but hey we should be the leaders in transmission design and stop buying trans. just because theyre cheap.
#1251 of 1484 Re: I just an owner [babbs3]
Apr 19, 2012 (9:00 pm)
Over a dozen trips to the dealer and a few phone calls, still nothing yet. Have waited now over a month on 'Diane' I think her name is for some type of 'go-ahead' to tear into it for an inspection. Diane is the area GM rep and supposedly submitted it to some 'engineers' to see if they have encountered these problems before or if there was some type of 'hush hush' non-public bulletin out. So far nothing. If the weather holds this weekend, I'm dropping pans and covers, checking backlash, joint clocking, looking for metal, etc.
And I don't even want to bring up the part about the 'road force' tests that didn't do squat other than scratch and dent up two of my wheels. Thanks for that fine piece of work, gm certified tech.
#1252 of 1484 Re: I just an owner [jjacks]
Apr 20, 2012 (3:52 pm)
"And I don't even want to bring up the part about the 'road force' tests that didn't do squat other than scratch and dent up two of my wheels. Thanks for that fine piece of work, gm certified tech."
If he damaged your wheels doing a road force balance I would talk with the service manager.
#1253 of 1484 Re: I just an owner [jjacks]
Apr 20, 2012 (8:13 pm)
Just to start...chuck maybe you should go get another Honda. Anyway, I ironically just bought a 2010 1500 LT 6 spd from a Honda dealership and I wish I would have found your post jjacks before I did. Having the exact same problems, like I wrote your list myself. I just want to say you sound more intelligent then the "master craftsman" at the GM dealership who told me just try driving it in TOW MODE!!! because I really want to get 8 mpg. I just want to know if these problems are a nuisance or if they are serious mechanical problems? I still have the power/tran warranty so I want to get this stuff checked out and some more knowledge would be great when I go to a different dealership. (because knowledge is power!)
I am an Avionics Tech for the Air Force and as far as #6 on your list I think your right with the stray volts going to the adjustable peddle. The guy who wired your truck was probably having a bad day.
May 03, 2012 (12:34 pm)
I have a 94 sierra. i was wondering if brake pads for a 2004 suburban will fit on a 94 brake caliper.
#1255 of 1484 Re: New 2012 sierra made it 384 miles before tramission problem [gmcustsvcsarah]
May 10, 2012 (4:13 pm)
Ok I finally got the truck to the dealer last week and got it back today. Dealer states cause of issue "K7254 R&R 2-6 clutch-disasemble, tac case 71-1064497549, clean out as per tac replacement clutch pistons due to scoring, flush lines, coole v-body. Truck now runs as smooth and shifts normal
#1256 of 1484 Re: New 2012 sierra made it 384 miles before tramission problem [galvezfj]
May 10, 2012 (9:54 pm)
they did that to mine twice along with changing a stuck silinoid and now it shifts as smooth as a lexus!!!! they have a tsb about this and never perform it!!! even with the bad seal in the trans that leaks all of the fluid into the tc!
#1257 of 1484 Re: New 2012 sierra made it 384 miles before tramission problem [galvezfj]
May 11, 2012 (5:50 am)
Outstanding! Thank you for the update, galvesfj, and I'm so happy to hear this.
Many happy miles,
GM Customer Service