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Engine RPM dropped
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<blockquote data-quote="noy_bimmer" data-source="post: 91433" data-attributes="member: 385"><p>Thanks all. </p><p></p><p>To make things clearer, </p><p>1. When aircon is on, if you notice(you should) compressor is on and off alternately. this is to control the temperature, so that not very cold.</p><p></p><p>During the compressor on, the RPM will drop, back to idle, and drop again when the compressor is on during next cycle. (do I make things more complicated?)</p><p></p><p>The car will vibrate and fill very uncomfortable.</p><p></p><p>I will check ICV and vacuum hose.</p><p></p><p>"Once a bimmer, a bimmer forever"</p></blockquote><p></p>
[QUOTE="noy_bimmer, post: 91433, member: 385"] Thanks all. To make things clearer, 1. When aircon is on, if you notice(you should) compressor is on and off alternately. this is to control the temperature, so that not very cold. During the compressor on, the RPM will drop, back to idle, and drop again when the compressor is on during next cycle. (do I make things more complicated?) The car will vibrate and fill very uncomfortable. I will check ICV and vacuum hose. "Once a bimmer, a bimmer forever" [/QUOTE]
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