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Pickups Chevrolet Silverado & GMC Sierra Chevy Silverado and GMC Sierra Transmission Problems
506 messages, Last post on Dec 01, 2009 at 1:57 PM
You are in the Chevrolet Silverado & GMC Sierra Forum. Your Host is kcram
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Replying to: renegade0351 (Jul 31, 2006 1:01 pm)
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Replying to: mrplow (Aug 22, 2007 8:28 pm) |
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Replying to: mrplow (Aug 22, 2007 8:28 pm) |
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Replying to: renegade0351 (Jul 31, 2006 1:01 pm) |
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When my truck is cold, I have a very hard shift into 2nd gear. Once it warms up, the hard shift is sporadic but mostly goes away. I can also feel a very slight grind just before it shifts into 2nd gear. The truck has 90000 kms. ANY ADVICE?
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Replying to: bbbtrixie (Sep 05, 2007 7:54 am) kcram - Pickups Host
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Replying to: mfk8 (Oct 27, 2006 9:20 pm) |
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Replying to: jlandon (May 25, 2007 9:12 pm) |
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| My Silverado had a howl in 1st and 2nd gear and it felt like the transmission was slipping and I had trouble pulling my boat up a hills. I took it to the dealer and they said the transmission needed to be replaced. They replaced the transmission and I still have the howl in 1st and 2nd gear. I took it back to the shop before leaving the dealership. They told me there is nothing else I can do and that I would have to write a letter to GM or take it to another dealer. I have not tried to pull my boat yet. Has anyone else experiened this problem? | |
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I have a 2000 model old style Chevy ¾ ton pickup. It has the 350 cu in engine and 4 speed auto transmission. I believe it is a 4L80. From time to time my truck will shift out of OD going up a slight hill, but will not shift back into OD, when this happens, at each stop it will shift hard or jerk as it shifts from 1 to 2 to 3 gear. Most times if you turn it off and it sets for a while it will work fine for a few weeks or month. I have added one qt. of Lucas transmission oil and it did appear to help, but the problem comes back. I was told to have an OBD2 live scan test run on truck, it came back no defects. Apparently this test does not test transmission. Question: What test do I need to have run on transmission? What codes will tell me if the problem is electrical or sticky shift solenoid. Thanks, |
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