Can someone help me transmission slipping no codes coming out replaced speed sensor no changes what should I look for now

 

Check fluid level running @operating temperature. Also check fluid condition:

 

How many miles since the last fluid and filter change?

 

Transmission was replaced about 2 months ago with a rebuilt transmission fluid is just a little bit under normal levels..it runs but it gets but it won't shift from drive to next shift engine gets loud but it won't shift

 

Top of the fluid to the "normal level" before you do anything else.

Take it back to the place that put in the rebuilt transmission, you should have at least a 90 day warranty.

 

Ok I will do the oil...but the car will only go as far a half mile then will not move until I turn it off and back on for transmission to shift into drive again I have tried to scan for some codes but so far is not codes found

 

Why wouldn't your first instinct be to take it back to the shop that replaced/rebuild your transmission and have them diagnose/fix it? Something is't adding up here.

 

I replaced the transmission my self I did buy a rebuilt transmission from Advance auto parts I do have extended warranty on it for a year I did spoke to the auto parts waiting for the answer on what they want me to do,I don't really want to touch the transmission to avoid any problems with the warranty what I just don't understand is why my scanner is not registered any codes on the transmission

 

Car is on the shop now scanner didn't show any transmission codes either at the shop so warranty people is sending a replacement shop believe is the pump..but warranty people say not need to check just replaced...thanks to all for your help it was helpful.

 

Thanks for the input. Fluid and filter getting changed today. I just don't believe the trans is really hurt because it shifts great if you manually shift it.