Engine Performance problem
2003 Mazda b3000 6 cyl Two Wheel Drive Automatic 133500 miles
My truck seems to run fine until about 70 mph when it starts misfiring, causing a sudden jerk. This is particularly evident if the auto speed control is engaged. The truck then continues misfiring and slowing down until about 50 mph then usually begins running o.K. Again. The problem also seems to occur when motor is under stress such as climbing a hill. Can anybody tell me what to start looking for?
have the same problem?
Saturday, January 23rd, 2010 AT 5:21 PM