4l60e downshift problem?
Hi I have a 98 k1500 with the 5.7
4l60e trans. I just replaced the tans
filter and fluid today and still has the
code p1860 for down shift. It will
sometimes start in 1st gear and shift
fine but when going to downshift it
will go to third and sometimes
second and will NEVER go back to
1st gear. Any ideas? All solenoid a
are fine and reads a 3-2 shift
solenoid problem