Jim hit a big puddle a while back, and now his engine misfires when it's rainy or humid. Can Car Talk help him out?
Dear Car Talk
Shirley's defroster seems to make her engine run rough. Has Car Talk ever seen this before?
Robert is looking at a VW Tiguan, but he really prefers diesel. Can he just buy the car anyway and swap in a diesel engine? Is this more trouble than it's worth?