My mechanic says my PB unit (vacuum unit) is failing. Yet I have excellent brakes and at least short term in coasting say from 70mph with engine shut off I still get 6 brakes applications before I get the hard pedal. Yet when I attempt to stop the engine at idle, there is usually not enough to stop the engine unless I increase the engine speed. Are there two diaphrams in the unit, one for brakes and one for the rest of the demand.

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Junqueyardjim
Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important. C.S. Lewis



1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA

2003 Jaguar Type X, AWD. beautiful, good mileage,
Mom's car, but I won't let her drive it!