I haven't had a chance to put it on the lift. Maybe tomorrow. It's possible the MC is over filled. I'll check that next if it's still an issue.

 

Actually, there may be old, residual fluid within the master cylinder that if not flushed, will be introduced into the system.

I recommend a Mity-Vac ($45.00) because you can observe all old fluid being deposited into the external reservoir as new fluid is pulled through the system. No second bleeding is ever required. Best tool recently purchased!