Quote:
Originally Posted by dcarrb
I've noticed a subtle whine for some months that seems isolated around the PS pump and figured a pump might soon be on my shopping list, but I've kept an eye on the fluid level and kept driving. This shudder felt like air in the system, begging the question: Can a bad O-ring allow air into the works without leaking fluid?
Input appreciated, and thanks in advance.
dcb
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You asked a specific question but appear to have not received a reply.
The whine you report is a one symptom of a leaking O ring. Yes, air can get in without a fluid leak being apparent.