Engine_2014 : General Subjects - 2295/3524
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| If the compressor is heard to knock while pumping down the low side for repairs, but otherwise the compressor sounds normal, this is a possible indication of what condition? |
| A) worn piston rings |
| B) faulty bearings |
| C) air being introduced to the system |
| D) foaming of the crankcase oil |
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