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How can you tell if "the bomb" is bad?
>the third time he hit the brakes the pedal went down about 1.5 inches
>and then the pedal began to throb. He said that's a dead giveaway that
>the bomb is bad, and that the brakes might not be safe in an emergency
>situation. Does that sound right?
>By the way, the mechanic says $300 for parts and $75 for labor. Does
>that sound reasonable?
the best way to test the bomb is to let the engine run for a few minutes
and then shut it off. pump the brake pedal until the unassisted feel
goes away and is replaced by a "hard" brake pedal. this should take up
to 30 or so brake applications. if it happens in the first one or two,
the bomb is bad. if it takes a 10 or so, bomb replacement is just around the
corner. you can find "aftermarket" pressure accumulators (they are all
made by lemforder) for $250-300. the replacement takes less than 1/2 hour.
it will also take 1-2 liters of pentosin to refill the system since bomb
removal will drain the reservoir.