My overdrive light has been flickering off and on as well as the over drive itself acting up. It'll drop in and out of OD randomnly.Mechanics telling me he thinks it could be the"4th gear pressure switch". Any comments from the greater powers of this site?

 

i doubt it , it may be the actuall switch itself but i dont think its the pressure switch many shops dont know what there talking about consult a dealer near to you what transmission model???