1993 plymouth sundance won't start then stalls

Help ! I recently bought a 93 Plymouth Sundance that ran fine for the first couple of weeks. Now it doesn't like to start, or if it does, it idles low then stalls, or stalls when I put it into drive. It's also blowing white smoke, and hesitates/jerks occasionally when accelerating. Does anyone have any suggestions?

try changeing your spark pluges. i had a friend who had this problem with a 92 and we changed the spark pluges and now she starts like a beauty and as for the white smoe you have a blown head gasket.