problem with the automatic box 4l60e

Help I have a 196 4x2 Silverado Motor 8 cylinder and the problem is that when I take the speed from First to Second, I have already changed the sensors the turbine and I put the computer and report that everything is fine please thank you highly I appreciate your help since it is my vehicle to go to work and it is causing me health problems this fault thank you very much.

Check the TPS sensor, by mechanical fatigue produces that fault.

Thanks as a result I notify you

Good
if it is a motor transmission from the Motr to Transmisisison Pomenger, imbalance it a bit and you try it.
If it is by accelerator sensor this is adjusted in the sensor that goes to the side of the air inlet butterfly move it to the side you adjust it and test it if you feel improved is already fixed, but these adjustments must be slight step by step.
If it persists even with the adjustment
, it can be an accumulated. These are springs that go with some pistons within the transmission you must lower the valve body to review, if you are not a mechanic of this type of artifacts, take it where one who knows about the matter

Three possible causes, degraded depressor, overwhelming cable too tense or degraded or some broken support checks and informen