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Discussion Starter · #1 ·
I have a 2015 Chevy Cruze and it has 40,000 miles on it. I noticed that my engine/or transmission runs rough and has a humming/vibration with slight drop in rpm, when at 2000 rpm. And it's not all the time, it's at a certain point. Say I'm driving 60 mph and have to slow down a tad. Say my speed drops to about 50 mph and I start to accelerate again. When I accelerate the rpms will hit 2000 and drop 1 line and that's when the vibration and humming begins. You can tell its having a rough shifting issue. As soon as it gets back over the 2000 rpm line the noise and vibration goes away. I took it to the dealer once already and they said it was shifting fine (of course) but it's really not. Having them tell you there's nothing wrong when there is something wrong is so annoying. I've posted a link to a video I took of the issue. The noise/vibration/slight rpm drop happens at 0:29 seconds into the video.please notice the rpm drop at the 0:29 second mark and rough acceleration til back at 2k rpm. Please help me! I love this car and I need this fixed! The video shows the exact problem. Turn volume up to really hear that humming!

https://m.youtube.com/watch?v=leLpsRlDpfs
 

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Discussion Starter · #5 ·
Ok, well I'm going to schedule another appt with the dealer and drive along with the trans expert to duplicate it for him. Hopefully they can let me borrow one of their rental cars for a coupe days( I hope) because this is my only way of transportation.
 

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Discussion Starter · #7 ·
I'm not sure what you guys mean when saying try it in M? Like I see the m by the shifter but I have no idea how it works and I don't want to mess anything up lol. If it's normal than great, but it's still under warranty so if there is an internal issue id like to get it fixed while it's still free
but again in not sure how the whole M thing works...
 

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Discussion Starter · #10 ·
Yeah my engine/transmission has been getting worse all week long, the longer I drive it the louder and rougher it gets..has a humming vibration when it shifts now..It's at the dealership right now..hopefully they find out what's up today. There's only 40k on the car how could it already be having these problems
 

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Discussion Starter · #12 ·
No I told them and he was going to charge me 60$ to have the transmission guy ride with. I explained to them the exact sichuation and they said they checked literally everything and plugged it into the computer and nothing came up saying that it was running wrong. At this point I'm going to have to goto the other Chevy dealership to get a second opinion...
 
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