Hello,
I have a 1994 Buick Regal that seems to buck and hesitate when driving...I have felt somthing like this before in a mazda 626, and it turned out to be a fouled spark plug...I will check this but I would like to know if anyone has any ideas what could be causing this....the car runs very well when idling and it smooths out when you give it gas.
thanks for your input,
Mike
PS. The "service engine soon" light has also recently come on...in my manual, it states that this light will come on if there is a problem with the emmisions?
Thanks

 

I'd take it to a "reliable" shop that has the computer to hook it up to. I had this problem with a couple of our company cars that were GM 3.8L V6 (probably your engine) and in both cases one of the "igniters" was starting to go out.

Good luck.
Frank