I get a high whine, almost a beep, that lasts for about 10sec after starting my engine. It used to be barely audible but has gotten louder and louder. Doesn't matter if it's a warm or cold start. Any ideas?
Another part with high failure rate as it ages. On the plus side, if you are in a state where they are a pain about emissions, it is also rather expensive and they seem to fail in a way that leaves little for rebuilders to consider working on them. Check the valve that lets it pump into the exhaust too. I have seen lots of people with failed pumps also have the valves melted apart. I dont' know if the valve lets go first and takes the pump with it or if the pump goes and takes the valve.
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