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Chevy Silverado and GMC Sierra Transmission Problems

502 messages,  Last post on Nov 08, 2009 at 8:49 AM

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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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#39 of 502
2003 Chevy 1500 HD Transmission trouble by bohunk
Feb 10, 2007 (10:14 pm)
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When I am at low speeds (aka: parking lots,traffic,etc.) It feels like there's a delay when its going forward or in reverse. The best way I can describe it is, it feels as if its loose or hitting against another part. The feeling does not occur at higher speeds. I would appreciate any info on this matter.
 
Thanks
#40 of 502
Re: 2003 Chevy 1500 HD Transmission trouble [bohunk] by brix92
Feb 11, 2007 (11:36 am)
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Replying to: bohunk (Feb 10, 2007 10:14 pm)

I bought a 2007 Classic 1500HD in October and to me, it does seem somewhat sluggish when I go forward after I start it up and am putting it into drive,and/or reverse. It doesn't feel to me though like anything is loose or one part hitting another. It does kind of seem that something isn't connecting quickly, if that makes sense.
 
Are there any other problems you are having with this truck? I would like to know!
#41 of 502
Transmission Shift Problems by maxwell10
Feb 27, 2007 (10:44 am)
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#42 of 502
Transmission Shift Problems by maxwell10
Feb 27, 2007 (10:44 am)
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I have a 2000 model (old style) ¾ ton Chevy pickup with 350 motor, automatic transmission and 72,000 miles. A few months ago my transmission shifted hard from 1st to 2nd a few times then started working properly. Within the last month it shifted out of OD on a hill, but would not shift back to OD once I was on a level road. It has done this 3 or 4 times. I ask the Chevrolet Service Manager about the problem and he said it was probably the shifting valves or ignition switch.
 
He said next time it did this, to stop, turn motor off, then start it up again and see if transmission shifts properly. If not, the problem is in the shift valves. My transmission did not correct itself.
 
On this forum an Chevrolet Service Tech said to try LUBEGARD in the transmission and many times it will free the shift valves. I did this: http://www.lubegard.com/automotive/trans_atf_mv.html
 
I have driven the truck over 300 miles and it has shifted perfect, even shifted out of OD on a hill and back into OD once I was on a level road.
 
If I had any money I would invest in this company.
 
Just my opinion.
#43 of 502
89 c2500 tranny problem by steelweels
Mar 05, 2007 (5:32 am)
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#44 of 502
89 c2500 tranny problem by steelweels
Mar 05, 2007 (5:32 am)
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89 c2500 2wd 200,000 + miles, tranny wont go past 45 mph and sounds like it is struggling to move truck, sounds like somethinhg is turning hard, at times when starting out acts like it slips but then goes, fluid is ok, changed filter or screen and fluid last summer, was great for a few weeeks then acted up again, some days it is fine, not sure what to try, torque converter, tranny, cant afford shop or $700.00 rebuild at this time, need to get gmc on road first.
#45 of 502
07 Silverado rough shifting by azmike07
Mar 09, 2007 (1:16 am)
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#46 of 502
07 Silverado rough shifting by azmike07
Mar 09, 2007 (1:16 am)
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I just bought a new 07 Silverado ext cab 1500.
I've noticed it shifts kinda rough at low speeds or when its downshifting from first to second.
Parking lots are where I notice this most of the time should I be worried about it or has anyone else noticed this?
#47 of 502
2005 Silverado 2500 transmission noise by ariles7
Mar 10, 2007 (6:33 pm)
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#48 of 502
2005 Silverado 2500 transmission noise by ariles7
Mar 10, 2007 (6:03 pm)
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I have just bought a 2005 Silverado 2500. I love the truck and it gets great gas milage and runs great, but I hear a clanking noise when I shift gears. Like something is loose. (5 speed trans.) I have taken it to my local dealer since the dealer I bought it from is 2 hours away. I have emailed the GM company and they said try another dealer and if I am not satisfied with their diagnoses, let GM know and they will make it right. Most people I talk to say it is normal. I just wonder if it normal or if it is a real
 problem that GM is trying to avoid. Should we join forces and contact the consumer protection agency or something?

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