Help debugging the jerk issue in Mira

[king.master127]

Asalam U Alaikum.
I recently bought Mira 2010 model and I noticed when I push the throttle it jerks a bit, I guess this is due to gear shifting but sometimes it's very noticeable and the car shakes a bit. The same thing happens when I let go of the throttle or apply brakes but in downshifting jerks are even more noticeable. I had it checked by a mechanic and the gears fluid (shifting fluid) is fine (in red color, not black). So he mentioned there might be a problem with plugs, So I wanted to have the opinion of experts here. What do you guys suggest?
Thanks in advance for any help

[syedfaizan1]

Get the general tuning done like thoratel clean, plugs checkup, catalyst converter checkup , map maf sensor cleaning.. and use fully synthetic oil in your car . Role of thump get it tune and service after buying a car and replace all fluids in it. Hope it will help

[asad1]

General tune up can help for sure
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[pwuser17265065043]

Hello, did you find any solution for the problem. I am also facing the same problem in my 2011 Mira Es. The problem has increased. I changed the cvt fluid with Toyota TC fluid and reset the cvt valves that learn your driving pattern but still the issues persists

[Xulfiqar]

Did mechanic use scan tool with debug commands?