I initially had an issue with the vehicle not going into 1st gear and then not going into overdrive. After putting dielectric grease in the harness the 1st gear issue seems to be resolved and the overdrive was as well for about 200 miles. Now it will rev up to 6 or 7 rpms in 3rd on the interstate and never shift into overdrive. I was on the interstate when it kind of chugged then dropped to 3rd and wouldn't go back. Anyone else have this issue?