exchange box

Hello friends, I have a problem with my Cherokee Laredo 2002, I change all the artifacts of the automatic gearbox, sensors, cash valves and seleneoids, in addition to the TPS sensor, but still with the same problem, this is: when the vehicle starts in first take the appropriate revolutions 2000 rpm to pass second Rare what happens, has scanned and does not throw any code, has this happened to someone?

I saw this problem in a 2009 Ford Explorer, only that the pull passed between 1500 and 1600 revolutions .. The same thing was done, the box was completely reviewed, some things were changed but it remained the same .. on the computer it did not throw code .. the gas pump was changed, and holy remedy .. it did not happen more .. I hope it helps you ..

Thank you, I'll talk to Elmecanico to see her.

What type of box is since it may need an agency reprogamation you do not explain well how the failure is and the revolutions are very high for the changes depending on how the accelerations would be at 1500 all the change would be 20-40 and 60 and depending on if you are heavy leg you would do it 2500 keeping it constant but the changes would throw it over 30-55 and 80 the last change.

I really don't know what box it is, but it is a Cherokee Laredo 4.0 year 2002, and the problem is the first one and when the second goes to the 2 or 3 seconds, the Tersera passes by cutting the revolutions sucking and a pair of second to follow normal.