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Discussion Starter #1
1. Year, trim level, and transmission.
2011, LS, 6-spd automatic w/ manual up/downshift.

2. Miles on the car!!!
105k

3. Check engine light, airbag, or other warning light on or "Service [insert system here]" message showing? Has somebody told you the code if the check engine light is on?
No light

4. Approximate location of the issue.
N/A

5. As detailed a description of the problem as you can give. Something like "My 2012 Cruze Eco manual transmission with 50k miles on it is making a grinding noise from around the brake pedal at 12 mph every time I start the car, and doesn't do it again until I start the car again" is enough to let us get started. (Hint: I described the ABS self-check, and that check is normal for every Cruze on startup)

When the car is between 35-42 MPH, there is a 'slight' hesitation to shift into 4th gear compared to other gears. Downshifting to stop lights/signs also causes some hesitation. See below for more information/backstory.

6. Country! Your warranty and repair options might be different in other countries than here in the United States or Canada.
USA - No warranty options

7. (as needed): Left-hand drive or right-hand drive? If your car is right-hand drive, that's nice to know since a lot of us on this board have little experience with RHD cars.
Left


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This isn't an urgent issue.

Recently, the mechanic fixed my transmission cooler lines and serviced the transmission (put in new transmission fluid). When sharply turning around corners into 2nd gear or accelerating on somewhat of an incline, there is somewhat of a hesitation when I go from 3rd to 4th gear. It does kick in gear, but I'm just concerned about this hesitation. It's been happening for years, and I am looking for guidance on what I can do to mitigate it. It's as if the engine slightly loses a bit of power but then regains when it kicks.

Are there any relevant parts I can check and/or clean to help the performance? Or, do you all think it's something more serious with the transmission itself?

Here in a couple weeks, I'm going to try and get my car looked at by the mechanic for brakes, rotors, & axle check. Depending on suggestions here, I may have him look at other areas. I thank you all for your help in advance!

-Kyle
 

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Try using this as your header - way less busy

2011 US Spec Cruze LS, 6-spd automatic, 105k miles (no more warranty), no lites or codes,

When the car is between 35-42 MPH, there is a 'slight' hesitation to shift into 4th gear compared to other gears. Downshifting to stop lights/signs also causes some hesitation. See below for more information/backstory.


When was the last time you changed your trans fluid? You'll have to read through this to make sure it works on a 1.8 as I have forgotten whether or not the trans is the same for the 1.4

[h=1]How to: Automatic Transmission Fluid Flush[/h]
 

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Discussion Starter #4
All, just following up on this incident. I had an engineer perform a transmission flush on my car, and performance is still the same. Now, I even feel the car jerks between 2 > 3 and then 3 > 4. Really, I just live with it; traveling less than 50 miles a day and keeping my road time to less than an hour is fine. If I have to go any further, that's when I start noticing the hiccups between gears and other performance issues in traffic (see my other thread regarding the idling). It's not a strong "kick" into gear, but more so a lag/hesitation.

Is there anything I can do programmatically to resolve the issue? Any way to reset the way the car has learned how I drive to see if this helps?
 
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