Search Results for ‘modulator’

i have a 2.3 with a c3 trans and it shifts very hard from 2nd into 3rd and from 3rd to 2nd, ive been told that replacing my shift modulator could potentially fix the problem. the problem is i have no idea what im getting into. Has anyone ever replaced the modulator before? would it be better to...

I'm going to freshen up my tranny a little bit. What type of vacuum modulator from NAPA should i use on my transmission. There is like several options. One with a green stripe, a black stripe and a red stripe. Any thoughts or info? Thanks in advance.

I recently acquired a 1977 mustang 2 with a c-3 auto tranny and it started shifting at random when cruising on fairly flat even blacktop at around 40 mph. This started the second time I drove it. The third time I dorve it (second time on the interstate) it started doing on my way home (32 miles...