I have problem with Honda accord 2001 , 4 Cyl. 2.3 eng. transmission, after get heat (30- 40 Min Driving) start the delay of slipping between 2nd and 3rd, after that the 4th not coming at all, then its not back to 1st.
I change the transmission oil with original oil 3.5 liter but still the same problem
Pleas advice me

Thanks

 

take out the shift and lockup solenoids clean them with carb cleaner also when it starts slipping you can apply 12 volts to these shift/lockup solenoids to here if they open *they should make a CLICK sound* after passenger side its easier to remove the tire you have to sensors that read the shaft speeds which im sure are coated in metal if not sorry but you are looking at a new transmission you could also pull out the tcu and inspect but i doubt its that