myhardluck

hi all,95 xj,trans wont drop into low when coming to stop.works fine shifted manualy,replaced throttle sw.did trans ser.,could it be tcm?.shift solenoids?,if so how do u check,and how to repl.shift solenoids.when starting cold starts in low,next stop will be in second.then sometmes it will drop into low. trans shifts fine all other gears? please help if anyone knows a fix or any info will be helpfull.thanks bob, st. augustine fl.