#61357

Jim:
If you have NO fluid loss (i.e., your master cylinder reservoir remains up), then it could be some air in the system. Does the pedal stay firm after pumping it up? Myself, I don’t use silicone, just Castrol LMA, but have heard others comment about a "soft" initial pedal when using silicone. Maybe Tiger Tom could shed some engineering expertise on this. If you do have fluid loss, with no visual indications of leaks, I would point to the brake servo. Double check: have you inspected EVERY fitting connection/bleeder screw/rear of the master cylinder? Look under dash above the brake pedal. No leaks anywhere? Bleed the system again. Best I can offer — good luck. And let us know what you find!