Auto Transmission Replaced Still Problems
Hi, My gf has a 2010 cobalt with auto transmission about 80k miles. Started shifting hard slipping.
She went to mechanic who installed a used transmission(mistake 1)
Worked well for about a week now it is hard shifting intermittantly and making a noise. I think it is probably the same as before.
Codes are all sensor related, check engine is not on.
0717 input turbine speed sensor
0706 Transmission range sensor
1818 TFP valve position switch
0711 Transmission temperature sensor circuit
Mechanic says 500 more to replace sensors but he recommends trading it in. I suspect he has no idea what he is doing.
After installing the new trans does the computer have to be reprogrammed or anything like that as these all seem to be sensor/computer issues.
Anyone have any idea how to fix or proceed. Mechanic says transmission is fine and it is computer related and won't fix anything without more cash. Which she does not have and think she may have to cut her losses at this point anyway.
Thanks in advance for any help provided.