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I have a 12 Cruze Eco 6MT.
Noticed some issues with the 1-2 shift grinding a few months ago. There was a metallic whine around 30mph that increased as speed increased. Car had about 30k at that time. Filled with Amsoil Synchromesh as everyone said on this forum. 1.9qt came out of the transmission, I filled with 2.4 qt. Shifting did get better, but still occasionally would grind 1-2. Whine at 30mph was still there.
About 10k miles later, 5/6th gear sounds like marbles under load after it gets warmed up, after a long drive. Car still drives, but I don't trust it.
Took it into the dealership to have them look at it. They are having a transmission specialist look at it and will get back with me. They did confirm they could hear the whine at 30 mph. They could not recreate the 5/6 gear sounds.
Based on everything I've read here, they should be replacing the transmission under warranty. I will update this post with how the process goes so others in the future can find out how to resolve these issues. While the car still drives, these are tell-tale signs that the transmission needs replacing.
I had considered doing a Trifecta or BNR tune, but decided to wait until the warranty was up just in case something like this would happen. Car is still on stock programming.
Noticed some issues with the 1-2 shift grinding a few months ago. There was a metallic whine around 30mph that increased as speed increased. Car had about 30k at that time. Filled with Amsoil Synchromesh as everyone said on this forum. 1.9qt came out of the transmission, I filled with 2.4 qt. Shifting did get better, but still occasionally would grind 1-2. Whine at 30mph was still there.
About 10k miles later, 5/6th gear sounds like marbles under load after it gets warmed up, after a long drive. Car still drives, but I don't trust it.
Took it into the dealership to have them look at it. They are having a transmission specialist look at it and will get back with me. They did confirm they could hear the whine at 30 mph. They could not recreate the 5/6 gear sounds.
Based on everything I've read here, they should be replacing the transmission under warranty. I will update this post with how the process goes so others in the future can find out how to resolve these issues. While the car still drives, these are tell-tale signs that the transmission needs replacing.
I had considered doing a Trifecta or BNR tune, but decided to wait until the warranty was up just in case something like this would happen. Car is still on stock programming.
