ok this has been an ongoing problem. i am driving along and hit a pot hole or a bump in the road. the truck will stutter and act like it wants to die. it will also do this when i turn corners.

the truck has been to the dealer and they can't find anything wrong. they checked the grounds and said that they were good.

truck has new computer, battery, and fuel pump

truck is a 97 sc, 2wd, 4.6, auto.

problem seems to be increased in the afternoon when it is hot out.

any ideas?