Kentite Posted April 14, 2018 Report Share Posted April 14, 2018 Our brake pedal is distrubingly soft when the vehicle is running, but rock solid when the engine is off. This was somewhat noticeable last time we ran the car (October), but seems to be worse now as we have just reassemble for the spring. We have a new brake booster and check valve, and I DO understand that the power assist will soften the pedal, but like I said it is softer than ever. New front calipers, but currently our old pads are installed (they have maybe 20% let on them) as we are waiting for the new ones to arrive. Also we are using a stock master cylinder, which is 5 years old, to push a single piston rear disc swap and dual piston front calipers as opposed to OE single piston. So it may need to be upgraded. It is a four port master with an individual line to each wheel. No ABS. Thoughts? I’m thinking maybe something internal in the MC, but I feel like that would be evident with the engine off. Maybe a bent pad or mounting bracket? We do have slight kink in one line from some ham fisted jacking by yours truly but the wheel it goes to is releasing fully. Quote Link to comment Share on other sites More sharing options...
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