A technician is diagnosing an air brake system where the compressor cycles on and off too frequently. The system builds to the correct cut-out pressure, but then pressure drops rapidly to the cut-in point with no brakes applied. Which of the following is the MOST likely cause?
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A
A saturated air dryer desiccant cartridge
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B
A leaking supply reservoir check valve
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C
A faulty foot valve (treadle valve)
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D
A misadjusted slack adjuster on a service brake