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Chevy Silverado and GMC Sierra Transmission Problems

503 messages,  Last post on Nov 10, 2009 at 5:28 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

#49 of 503 Re: 2005 Silverado 2500 transmission noise [ariles7] by geo9 Mar 10, 2007 (6:33 pm)
Replying to: ariles7 (Mar 10, 2007 6:03 pm) HMMMMMMM.....You have 1 RARE truck....A 2500 5 speed ? Miles? 2 or 4wd? auto or stick??????//   Take it to another dealer...............
#50 of 503 Re: 07 Silverado rough shifting [azmike07] by chrmdome Mar 11, 2007 (9:17 am)
Replying to: azmike07 (Mar 09, 2007 1:16 am) Greetings:   I picked up my 2007 Silverado K1500, 4x4 Crew on Friday, March 9th and noticed the same problem. Rough shift from 1st to 2nd. It had 5 miles on it when delivered. Now at 36 miles the shift is smooth. I attributed the rough shifting to incomplete trans fluid distribution. I have driven the truck at low speeds for last two days and am not noticing any rough shifting now.   Chromedome, San Diego Replies to this message: dustyk (Mar 15, 2007 4:42 pm)
#51 of 503 Re: 07 Silverado rough shifting [chrmdome] by dustyk Mar 15, 2007 (4:42 pm)
Replying to: chrmdome (Mar 11, 2007 9:17 am) The 4L70E and 4L80Es have new shift control assemblies and are now semi-adaptive. Your transmission was probably going through it's learn cycle. I think you'll find that if you ever disconnect the battery for a minute or two, it will do the same thing.   Dusty
#52 of 503 Re: Auto Transmission clunk [jsross44] by pins Mar 17, 2007 (4:37 pm)
Replying to: jsross44 (Jan 29, 2007 7:09 pm) I have a 2004 Sierra, same thing with my shifting. I have had it in twice and same as you, I have been told this is normal. Love my truck!
#53 of 503 Loss of power and transmission noise by october2525 Mar 18, 2007 (7:00 am)
My 2004 GMC Sierra 2500HD 4 x 4 looses power when my transmission temp gets between 180-200 degrees. It only gets hot on the hot summer days or when I tow my boat. There is also an unusual noise(higher RPM?) in the transmission when I take off after sitting a controlled intersection. I get my vehicle serviced on a regular basis. I have yet to take it into a dealer..any ideas? Replies to this message: october2525 (Oct 01, 2008 5:17 am)
#54 of 503 06 auto tranny failure by oomag12 Mar 18, 2007 (9:18 am)
42,700.. easy on her, no hauling, no towing..all highway miles....just went, no warning. I did have a little ride on slush ice the day before she went, down shifted and upshifted from D to 3 maybe a dozen times. next day, slipping and serious grinding growl. perplexing indeed. My 97 Jimmy Z-71 v-8 4wd has been bullitt proof..I am knocking on wood. Any insight. 06 did start using a new trans type correct?? I have the v-6 vortec WT 4 sp auto 2wd. Uses the new VI fluid type. Replies to this message: oomag12 (Mar 25, 2007 7:43 am)
#55 of 503 Re: Auto Transmission clunk [jsross44] by likearock Mar 18, 2007 (3:46 pm)
Replying to: jsross44 (Jan 29, 2007 7:09 pm) Start saving your money for a new transmission, GM Will be of no help, Afterall this is normal according to their service notice.  I sold mine after getting tired of beating a dead horse trying to talk to G.M. I took a gamble and bought a 2500 HD with a Duramax diesel and the Alison Transmission, I am very happy with this truck and the transmission is great. but will never buy another G.M 1/2 TON truck again.   Good luck Replies to this message: paisan (Mar 18, 2007 6:30 pm)
#56 of 503 Re: Auto Transmission clunk [likearock] by paisan Mar 18, 2007 (6:30 pm)
Replying to: likearock (Mar 18, 2007 3:46 pm) This is good to hear Likearock. I'm always worried about trans issues on any automatic trans.   -mike
#57 of 503 new style 07 trany w/vortex max by bumperdude Mar 18, 2007 (7:23 pm)
i bought a new style 07 1500 w/the 6.0 vortex max package. the first gear always sounded like it had a whine but at 7,500 miles it has gone. bought it dec 05 2006. it came apart and gm said they will rebuild it. i wanted a new transmission but the warranty says rebuild. i will be taking them up on that new 100,000mile factory warranty.
#58 of 503 03 SILVERADO 1500 Transmission Problem? by catfish2 Mar 20, 2007 (4:30 pm)
Besides the normal 4.8 Carbon Tap, my Truck runs like a clock. 200+ miles a day. 19-21 MPG. I have 190,000 miles on it now. For the last 10K miles I am experiencing a violent bucking at between 50 and 60 mph. It seems to only occur when I am cruising along, with or withour cruise control, and hit an upward grade. If I hit the brake it eases up. It also seems to disappear if I go in to passing gear. I also feel a gentle bumping at idle with my foot on the brake. Could this be a Tourque Converter problem? Chevy wants to do a Tranny Swap $2, 500.00, but hasn't even checked it out. The Truck has been well maintained. Has anybody else had this experience? Replies to this message: 1500_v8 (Jul 02, 2008 8:32 pm) Smitty66 (Jan 31, 2009 11:09 am)

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