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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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Had a new motor and tranny replaced 14 months ago. When I take off to drive the truck, I have to push firmly on the accelerator to get it going. Once the RPMs get high enough it shifts into 3rd gear and does fine from there. It seems to be skipping 1st and 2nd gear. Transmission shop did diagnostics, said it threw a code 66. He then bypassed the computer and said the transmisssion works fine. He sent us to electric shop, for electrical problem. They checked the wiring from the ECM to the transmission and said its fine, so it must be the main computer. We have replaced the main computer and still Not working correctly. Any clues, these diagnostic fees have emptied our pocket. Please help">
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Replying to: annabelle1140 (Mar 28, 2009 12:29 pm) Good luck |
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hi,i need some help please.I just rebuilt a 4l60e with a rebuild video.I used a master overhaul kit.put new vette servo and new 2-3 shift solenoids.i didnt replace the wiring harness.i had rebuilt it cause i lost 3-4 gear.i put the transmission in and it doesnt have reverse,jumps when you put it in park.and drives forward in neutral.but as far as 1-2-3-od they work great shifts are better then ever.if anyone can help please do. thank you
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| i have an 03 1500hd, and the transmission started overheating for no reason. I replaced the transmission and flushed out everything and it is still overheating. if you have any information about this problem please help me out. thanks, nick | |
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Replying to: ineedhelp690 (Apr 05, 2009 6:09 am)
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| I have an 07 Chevy 1500 Silverado 4x2. 10 -15 seconds after being at a complete dead stop not moving at all or anything, my truck will clunk and surge forward almost like i was rear ended. The dealer keeps lubing my driveshaft and yolk but that is not it. It almost feels like the truck stops in 2nd gear and 15 seconds later goes "O crap i'm in 2nd and shift down to 1st." i don't know if it is a computer thing or tranny thing or what. Has anyone had this problem as well and got it fixed. I have the settle back clunk from the extended leaf springs that the lube fixes but this is way different. Please post back if you know the fix or anything that could help. | |
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Replying to: helpnick (Apr 05, 2009 11:33 am)
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Replying to: ineedhelp690 (Apr 06, 2009 7:43 am) |
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I have a 1994 chevy dually 3500 1-ton and am having trouble with the tranny. After driving on the freeways for a period of time then getting off an off-ramp, the truck ssems like it is in neutral - when I shift to a lower gear nothing happens and when I try to put it in park or reverse it won't go in (makes a grinding noise). It drives fine and their is no slippage when I just drive around town, stoplight to stoplight, and drives fine when on the freeway, but when I get off the freewayit;s like it gets stuck in the gear it's in and wont downshift when I slow down. Eventually it will go back into gear, but not because of something I do - just does it by itself? any ideas? Thanks,
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| I was test driving a Z-71 4X4 and I noticed a Service 4WD message in the cluster. I tried to press the 4WD buttons but nothing seemed to happen. Also noticed a red led that indicated "N" that is located between 2 of the 4WD buttons. The truck has193K miles on it. If the transfer case or transmission needs servicing, will it deactivate the 4WD function?????? | |
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