Sorry if this is long winded, but I'd appreciate peoples opinion.
Scenario: 2013 Santa Fe, ~ 95k miles. Brakes ok but the pedal slowly sinks under constant pressure, will pump up. Same behavior when engine running or off with brake booster drained.
Checked - fresh fluid, bled brakes, no discernible leaks from any of the wheel or master cylinders, no leak into the brake booster, fluid level constant in reservoir.
So... fitted a new master cylinder, problem much reduced HOWEVER, like a fool, I allowed the piston in the new master to get pulled out and I just reinserted it without thinking about the seals. I suspect I damaged the seals on the new piston doing this, (or just a poor quality aftermarket cylinder ?), hence I still have the same problem, just reduced.
Any thoughts of what else to look at before I try another new cylinder ?
Scenario: 2013 Santa Fe, ~ 95k miles. Brakes ok but the pedal slowly sinks under constant pressure, will pump up. Same behavior when engine running or off with brake booster drained.
Checked - fresh fluid, bled brakes, no discernible leaks from any of the wheel or master cylinders, no leak into the brake booster, fluid level constant in reservoir.
So... fitted a new master cylinder, problem much reduced HOWEVER, like a fool, I allowed the piston in the new master to get pulled out and I just reinserted it without thinking about the seals. I suspect I damaged the seals on the new piston doing this, (or just a poor quality aftermarket cylinder ?), hence I still have the same problem, just reduced.
Any thoughts of what else to look at before I try another new cylinder ?