Rocking in 1st Gear
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Thread: Rocking in 1st Gear

  1. #1
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    Rocking in 1st Gear

    Hey guys,
    I got another question.

    I'm travelling just a little above 20km/hr around 3 - 3.5k RPM in first gear. I'm not shifting up because i have to slow down soon.
    If I let go of gas at this point, the car rocks alot. It's like I made a bad shift.

    I know there's some engine breaking involved, but is this normal?

    Thanks,

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  3. #2
    Super Mod's Pet sienthusiast's Avatar
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    Quote Originally Posted by SnowShow View Post
    Hey guys,
    I got another question.

    I'm travelling just a little above 20km/hr around 3 - 3.5k RPM in first gear. I'm not shifting up because i have to slow down soon.
    If I let go of gas at this point, the car rocks alot. It's like I made a bad shift.

    I know there's some engine breaking involved, but is this normal?

    Thanks,
    It's "normal" to our cars but it shouldnt be so rocky, it happens to me on 1st and 2nd gears when in traffic. Usually gotta press the clutch in for it to be smooth.

    I have heard flashpro cures this
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  4. #3
    Super Mod's Pet tnmz6i's Avatar
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    What you're feeling is engine braking and it is pretty noticeable in the Si, especially in 1st and 2nd gears. If you are creeping and need to slow down and re-apply gas, press clutch and rev-match if necessary. Makes low-speed driving much smoother.
    Spectrum and SnowShow like this.



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  6. #4
    Big Timer!!! corey99699's Avatar
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    Quote Originally Posted by sienthusiast View Post
    It's "normal" to our cars but it shouldnt be so rocky, it happens to me on 1st and 2nd gears when in traffic. Usually gotta press the clutch in for it to be smooth.

    I have heard flashpro cures this
    Mine seems worse since I got flashpro,but I'm just running the reflash map.Once I get a legit tune maybe it will be smoother but not sure.

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    Yeah it's really noticeable and wasn't sure what I should be doing.
    Thanks helping me out guys!

  8. #6
    Senior Member rudycarr's Avatar
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    A throttle body spacer will reduce this. Felt a difference after I installed mine.

    Sent from my SCH-R720 using AutoGuide.Com Free App
    Attached Thumbnails Attached Thumbnails Rocking in 1st Gear-uploadfromtaptalk1360194245593.jpg  
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  9. #7
    Truck? What truck?! scottyrocks's Avatar
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    On and off the gas in first gear without pressing the clutch causes a lot of rocking, even for more experienced drivers. If you're in stop-and-go traffic, push the clutch if you have to let off the gas in 1st.
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  10. #8
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    I would guess this is play in the drive train as your engine goes from pushing the car forward to slowing it down? Don't have the civic yet but it is very noticeable on my truck. Probably pretty normal.
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  11. #9
    Super Mod's Pet Millions-Knives's Avatar
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    Quote Originally Posted by corey99699 View Post
    Mine seems worse since I got flashpro,but I'm just running the reflash map.Once I get a legit tune maybe it will be smoother but not sure.
    I was playing around with this myself. Check the fuel cut off timing in 1st gear... this did reduce the over-rev in everyday driving but if I was moving slowly in 1st around a parking lot... boy did it jerk when you let off the gas without the clutch or depressing not soon or immediately after letting off the gas.
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    Super Mod's Pet sayswai's Avatar
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    If you're driving in first in traffic and trying to keep a constant speed, shift to a higher gear. It'll lower your rpm letting your engine work less, more mpg, very small amount. Usually with the case of the first gear rocking, that's because the first gears ratio is smaller than the rest, so the first gear is more sensitive to changes in speed. After a year of driving stick, what i suggest you do is push on the clutch as you let go off gas, but synchronize it. Just think of it the opposite of synchronizing when you're pushing gas and letting go off your clutch. Rev match to accelerate again. Know your sweet spot! It'll get rid of your rocking

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