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Pickups Chevrolet Silverado & GMC Sierra Chevy Silverado and GMC Sierra Transmission Problems
503 messages, Last post on Nov 10, 2009 at 5:28 PM
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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. |
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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. | |
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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?
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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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Replying to: ariles7 (Mar 10, 2007 6:03 pm) Miles? 2 or 4wd? auto or stick??????// Take it to another dealer............... |
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Replying to: azmike07 (Mar 09, 2007 1:16 am) 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
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Replying to: chrmdome (Mar 11, 2007 9:17 am) Dusty |
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