Someone who can guide me ...?

Friends, I tell you that the A4 Jetta, 2.0lt automatic.
It happens that when the car was crawled no longer towards the change of 3 to 4 stayed in 3rd. My box mechanic told me we refine it and change the body of valves. The oil came out clean without waste.
The car did not correct and only do it sometimes. Of course I pay the work even my car continues to do that. And it is removed if I stop a couple of minutes I turn it off and already arranged.
It was so that again it was taken by the draft with the mechanic turned on the focus of the acite and the pito alarm. And my mechanic said sure is a sensor that was released. Thus he continues to handle it and then my car was heard as a disel sifuera ...
so they tell me that it is the acite pump and in worse the metal cases too.
I am already with the unarmed carter I want to fix it I do not have much wool to take it to a workshop ..
someone who can tell me if a cycle takes the aquite bomb when removing it. or not?
And the other is that if I saw and the silk is covered.

Hello old, look at the oil pumps usually installed to the distribution of the vehicle or connected to the camshaft etc. They usually do not go outlet except that derives to 2 or more pine nuts ,, I mean that they are worth installed as a pump and at the same time as a crazy
pine washing and clean) the Somupor sometimes brings in oring or packaging and the pump does not risk just change, check the metals does not go around one ... greetings that look good ...

I already made the change of acite pump, and now as I follow your advice and others cuates, I have removed one of the connecting rod metals to check some damage, the truth is that it is not relative but if the wear of the same use is noticed, I am to ask for the opinion of a mechanic to have advises me if once changing them or already starting the total assembly. Only that I have looked for the torque that carries the connecting rods and I can't find. At some point I knew which is at 22 ft-lb plus 1/4 back. If someone in the forum knows that info would help me a lot to corroborate or clarify.
Thanks Marcelo for your info.
greetings

Hello again, look with the theme of metals, wear is normal but I have you changed them with closed eyes, they are not so expensive, buy the same measure as you are using on one side of the metal appears if this STD (Standar) or ..25 / 0.50 etc.
These are the measures in which it was after a rectification but in case you doubt the sample and purchases, it is important that you look at the disassembly for assembly the notches of the metals. eye. That notches should be in the same place for example the connecting rod has the bag where the notch goes back the engine the connecting rod cover should also be in the same way. Only the surfaces are very clean place the metals and before the lubricating assembly a little with clean oil and torque torque plus 1/4 of rotation in silicone connecting to the carter and the engine together and ready (so that you have good the pieces with benzine or gasoline 93 oct. Greetings old that you have bkn.