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"Low Humming" Sound when Air-Cond on.
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<blockquote data-quote="Lee36328" data-source="post: 264895" data-attributes="member: 113"><p>Yeah, but the ecu will die faster from overheating, in which case, the next noise will be me screaming...</p><p></p><p></p><p></p><p>I think so; all ecu comes w a fan to disperse the heat.</p><p></p><p></p><p></p><p>Ken, </p><p></p><p>I had some noise previously, which I could not be sure whether it was coming from the alternator or power steering pump. My highly precise scientific method was this. I took a broom stick, and put it on the alternator with one end of the stick, and pressed my ear to the other end of the stick and listened. You'll be amazed at the slush-slush-slush-chug-chug-chug noise you can hear. Next, I did the same to the power steering pump. Confirmed, alternator sounded harsh, and duly replaced. Car very quiet now.</p><p></p><p>I call this the Broomstick Test Procedure. The workshop does the same thing, except using a stethoscope.</p></blockquote><p></p>
[QUOTE="Lee36328, post: 264895, member: 113"] Yeah, but the ecu will die faster from overheating, in which case, the next noise will be me screaming... I think so; all ecu comes w a fan to disperse the heat. Ken, I had some noise previously, which I could not be sure whether it was coming from the alternator or power steering pump. My highly precise scientific method was this. I took a broom stick, and put it on the alternator with one end of the stick, and pressed my ear to the other end of the stick and listened. You'll be amazed at the slush-slush-slush-chug-chug-chug noise you can hear. Next, I did the same to the power steering pump. Confirmed, alternator sounded harsh, and duly replaced. Car very quiet now. I call this the Broomstick Test Procedure. The workshop does the same thing, except using a stethoscope. [/QUOTE]
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"Low Humming" Sound when Air-Cond on.
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