Slave cylinder, clutch master cylinder, or clutch. I'll check em all out today. How much do these things cost to replace? Individually of course. And can I do it myself? I'm pretty tech savvy just unfamiliar with working under the hood. But saving money is always worth the shot. It's Funny tho. Today I drove on the pa turnpike just the saMe as yesterday. But todays diagnostic check was no issues at all! It was morning tho, could temp/humidity have made the difference? Nonetheless something is gonna be replaced. Thanks for all the help thus far.

 

Since it is random, it is the master cylinder. Leave the slave alone unless you just want to replace it. Do this and it will solve your problem. The slave is hard to bleed though sometimes. You might have to take to off to do it.

 

you do have to take it out to bleed. its not hard though, you will just need a new piston cap to hold the piston in while you reinstall it, then break the cap by clutching after its bolted in. Again, I would recommend replacing the whole assembly, it is an easy bolt on repair (no bleeding necessary) and you get new master/slave and hose (which at 140k if you replace one now, the others will probably fail soon). I just did this repair last march. I bought it here, I was pleased with the quality and the customer service was great:
http://cgi.ebay.com/ebaymotors/Pre-b...ht_2028wt_1013