2012 Mazda5, 2.5L MZR L5-VE engine, 6-speed manual. 177k miles. Clutch disc, pressure plate, throwout bearing, and pilot bearing are all basically new; hydraulics are all original AFAIK.
Background first, then question.
After a few fast shifts yesterday – not clutch dumps or anything; just getting on/off the clutch pedal quickly – the clutch pedal suddenly started feeling like there was air in the hydraulic system. It has been a bit inconsistent – the more I use the pedal in a short span of time, the more normal it feels – but for the most part the engagement point was near the floor, and there was little to no feedback except spring pressure for the first ~3/4 of pedal travel.
Question: Is there any way this might happen WITHOUT either the master cylinder or slave cylinder having failed? I do intend to bleed the system and see what happens, but if it's more likely that something has failed, I might just preemptively replace a thing or two while I'm under there, just to cut down on total time spent.
Really hoping it's not the master cylinder. That job looks like it kind of sucks...
Background first, then question.
After a few fast shifts yesterday – not clutch dumps or anything; just getting on/off the clutch pedal quickly – the clutch pedal suddenly started feeling like there was air in the hydraulic system. It has been a bit inconsistent – the more I use the pedal in a short span of time, the more normal it feels – but for the most part the engagement point was near the floor, and there was little to no feedback except spring pressure for the first ~3/4 of pedal travel.
Question: Is there any way this might happen WITHOUT either the master cylinder or slave cylinder having failed? I do intend to bleed the system and see what happens, but if it's more likely that something has failed, I might just preemptively replace a thing or two while I'm under there, just to cut down on total time spent.
Really hoping it's not the master cylinder. That job looks like it kind of sucks...