My 94 mazda b4000 has run pretty well it got 189000 miles and a new transmission, and the truck jerks and shakes when I am accelerating and when I get to the speed I want the fast I go the worst it gets. I have replaced the EGR pressure sensor and checked all the plugs and I have taken it to my tranny shop to have them check the tranny they said it was good so I'm not sure where to go to next I need help. :(
