ANSWERS: 1
  • There are several possibilities: 1. After bleeding the brakes, brake pedal is spongy and performance is poor. Air trapped in the system somewhere or sometimes the routing of brake lines does produces a trap. Also a flex-hose may be weak and expands under pressure. Sometimes the sequence of bleeding must be changed. 2. After bleeding the brakes, brake pedal is hard and braking performance is good, but after some period of time (a day or weeks) the pedal becomes spongy. This suggests that there is air entering somewhere, usually due to a flaw in a flex-hose. 3. If after bleeding brakes all is good until you use the brakes hard then you have cooked the fluid and need high temp fluid. This might also happen if a brake line is too close to an exhaust header.

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