I apologize if this is a duplicate post. I have searched this forum and the Internet for weeks trying to get an answer. I have a 1995 lumina 3.1. It seems to idle fine, but when I am driving it sort of hesitates when I start from a stop and when the car shifts gears. I decided it was time for a plug/wire change, which I did. For about two weeks it ran great with no hesitation but for the last couple of days it has been back and bad as ever if not worse. I don't know what else to try. I tried braiding the plug wires because someone somewhere said would help. I did notice that the old plugs all had a lot of greyish buildup on them when I removed them. That's probably a sign of a different problem. Also, I replaced the plugs with the kind of plug that had two prongs on it. I don't know if that was a good idea or not seeing how they have a very small metal piece in the middle and could probably get fouled up easily.
I edited this post to add that I also noticed that one of the posts on the coil pack(?) on the far left has a rusty connection. Could his be something I need to replace also? I cleaned it well and took most of the rustiness off, but I didn't do that unilateral it started acting up again. So it was working fine even with the rust right after the plug and wire change.
Anyway, I'm rambling now. Any help would be greatly appreciated and if anyone needs more info just let me know and I'll
do my best to provide it. I'm not a mechanic though so I don't know how technical i can get.
thanks in advance.