Automatic shift knock

Hello friends 2005 model 307 xr has a problem with my automatic car several times today, it is knocked down when passing from 1 to 2.

Does it make the engine cold or every time?

I did not pay much attention to him, but when I first started I usually came across

[QUOTE = batt] I did not pay much attention to it, but when I first started, I usually came across [/ QUOTE]
There are two possibilities.
Firstly, the throat butterfly needs to cut and return the throttle instantly during shifting. If it is dirty, even if it is late, it will be knocked (kick). Remove throat butterfly and clean it well.
The second possibility is that the transmission oil is old. This kind of troubles can occur until the oil reaches a certain temperature when it is old.
Start with throat butterfly cleaning. If it does not, replace the gear oil. But take the oil yourself. Mobile brand talip206 2017-09-17 20:46:07

I will do what you say okay, thank you