Hi all,

First issue, I just replaced my alternator (was getting the "trans fail safe prog" error but no codes) and now my voltage is reading worse or lower then before. When reading the battery voltage on the instrument panel before i replaced the alternator it never got higher then 13.8v but every time I came to stop it will go done as low 12.2v. So I decided to replace the alternator. Now I can't get higher then 13.4v and with lights on it goes down to 12.0v.

Maybe another bad alternator? Also you can feel the car rev up and down a bit between 50 to 75 rpm and the voltage ranges between 12.0v to 13.4v.

Second issue is when I start the car shakes a bit like it wants to die, but after 2 mins or so it idles fine. Any ideas?