captwalker87

I was driving my [93 T4R Manual V6 4WD] yesterday and I was approaching a stop, and my brake pedal went almost to the floor before slowing down the vehicle. I immediately pulled off to the road and inspected my brake lines and master cylinder reservoir finding no apparent leaks or low fluid. I continue driving and the brakes were fine. Another stop, to the floor again. Help! This is what I have found or have done:

1. Reinspected all brake lines again.
2. Bled the brakes: RR, RL, FR, FL. No apparent air coming out of all lines.
3. Removed front tires and inspected pads, rotors and calipers. All ok.
4. Adjusted rear brakes to the point where its almost dragging.
5. Checked vacuum line/s to power brake booster.

And it STILL does it.

I have found, that for whatever reason, when I am slowing down IN GEAR, they work fine, but if I am slowing down with the clutch in, or in neutral, to the floor it goes. Pumping the brakes does not regain pressure (like there was air).

I am stumped. If anyone has any idea of the culprit, please, let me know!

Thanks in advance!

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1993 T4R 3.0L V6 W56 4.56's
SAS In Progress With '84 Front Axle, 4.88's