I have a Jeep Cherokee sport 2001. When driving on the highway it started "spazzing" jolting back and forth like it was having a hard time shifting to the next gear. Took it into the shop and they took it out and it didn't acted up. They gave it the once over and looked at it and didn't find anything. Gave it back to me and it acted up again the following day, so I took it back in again nothing when the shop took it out. The shop even went so far as to have me come in and drive it with the mechanic in the jeep to see if it acted up and nothing. Has anyone else have this problem? Any help would be great

 

You need to leave it at the shop over night. Then let them see it first hand in the morning while it's cold.