Did you guys ever find out what was wrong. i too have similar problems. I was driving my truck on to the interstate and i went to put it in to 4th gear and it wouldn't go in. so i pumped the pedal and it worked as long as i kept pumping before shifts. I ended up replacing the master and slave. It worked fine but the pedal never felt quite right. replaced the pivot sleave/bushing at the bottom of the shift lever to help it guide into gears better. Also replaced the rubber line before the slave cause my manager told me that that is common problem especially since i have 2" body lift. Wow it felt like new again. not. 3 weeks later it start to poop out again and slowly loosing pedal. however now pumping did jack. id go over a bump or up and down hill and i would get the pedal back, then nothing like i was pumping air. personally i think i have pressure plate issue, but im hesitant to pull the tranny cause when bleed the system again it works ok for a few drive cycles which indicates to me that i have hydraulic issue. ive even bleed the truck with the front and rear jack up at 45 degree angles so had n air pockets.(like ford rangers). so plz any info will help.
