We cant understand it either. Pedals has no pressure at all. I didn't feel the blip personally as I was under the car bleeding. You know the score, pump, pump, pump, fluid comes with no air bubbles then you shout pedal down and tighten that corner off and move to the next. After all 4 corners done still no pressure.All with engine off, suggests air leak but we checked that at the unions and the pipes are all new copper.
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Originally Posted by clf
what is creating the vacuum? On a diesel, if the engine is off, and you have filled the system, and it is sealed, then there will be no pedal travel after a couple of pumps, until you either start the engine, or open a nipple. (I thought petrols was the same). Or are you saying that the pedal is solid even with the nipple open?
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