1979-1993 & 94 Conv [Subscribe to Daily Digest] |
brake pedal gets harder over time accompanied by more pedal force needed to stop the car . hissing sound behind dash with vacuum leak also evidenced by decreased reading on calibrated vacuum gauge and idle thrown off . when check valve and vacuum line are removed from booster and plugged the vacuum leak symptoms go away and idle returns to normal . this test isolates the booster as the source of the leak .
posted by 72.72.14...
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