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Which appearance indicates power steering fluid that should be renewed?

  • A.Dark colour with a burnt smell
  • B.A pink or red colour, which is the normal appearance of transmission fluid and requires no action to be taken
  • C.Slight foaming
  • D.A cloudy appearance immediately after the system has been bled, which clears once the trapped air has escaped

Answer: A

Fluid that has been overheated turns dark brown or black and smells burnt, and it carries abrasive debris that destroys the pump. Fresh fluid is red or clear. Foaming indicates aeration rather than degradation. The order in which the effects act is what decides the outcome, so it is worth establishing first. A symptom that appears under one condition and not another is what narrows the diagnosis quickly.

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