My '99 saturn sl2 won't shift into drive
I have been having some definite
transmission issues. First lost reverse and
shifting hard or slamming into second gear. I
did some research and figured out that the
input shaft nut had came lose. So I got the
Saturn automatic transmission service set
(socket, some kind of holding tool and the
gasket) I got some thread locker red and
had a friend of mine watch this YouTube
video and fix it. (Tightening the nut) Well all
was fine I thought at first because it went
into reverse again and started shifting into
second like it is suppose to. But, then the
next day I noticed that my car will not shift
into drive (fourth gear). Transmission fluid is
full. Had the filter changed not too long ago.
So now I am wondering why will my car not
go into drive (fourth gear)? Help!