Our Chrysler Pacifica (with an automatic trans) is in great shape for having 149,000 miles. There is one issue that's been going on for quite a while, though. Intermittently, when we press on the gas pedal, we get a disturbing jerk -- feels like it's either between 1st and 2nd gear, or 2nd and 3rd. We've had it hooked up to machines at transmission repair shops, and they can't seem to find anything and recommend an expensive transmission rebuild. Our dealership charges money just to look at it. Are these our only two options? What would you recommend?
You may need to have your rear differential inspected as well, at times there is a chain that gains "slack" over time. This can cause a jerking, or an intermittent "clunk". I suggest you obtain a second opinion, and begin with your rear differential cover removed for inspection.
〉 Answered on Feb 11th, 2013 by Amanda J. Pierce, MBA "AJ", Certified Mechanic, Project Coordinator; Primavera Scheduler at VIGOR Alaska Industrial Shipyard & BizzM3ch Solutions