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The BMW Range
3 Series
E46
car shaking while idling without aircond
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<blockquote data-quote="jarance" data-source="post: 555545" data-attributes="member: 21"><p>Normally, the idling speed should be 750 to 780 rpm whether the aircon is ON or OFF. </p><p></p><p>The fact that your idling speed is 600 rpm when the aircon is OFF indicated that your ICV is not controlling</p><p>the idling speed properly. At low rpm of less than 680, vibration is expected or can be feel at the steering wheel.</p><p></p><p>Check your ICV. The vane in the ICV could be sticky. Most mechanic will removed the ICV and sprayed lubricating</p><p>oil like WD40 to remove the dirt trapped in the ICV. If it doesn't work, then they will recoomend that you change it.</p><p>(Usually they will spray with WD40 and shake it. They will then drain the oil and blow dry with compress air).</p><p></p><p>BTW, 1000rpm idling speed is too high. You might need to adapt the idling speed with a GT1 or INPA diagnostic tool.</p></blockquote><p></p>
[QUOTE="jarance, post: 555545, member: 21"] Normally, the idling speed should be 750 to 780 rpm whether the aircon is ON or OFF. The fact that your idling speed is 600 rpm when the aircon is OFF indicated that your ICV is not controlling the idling speed properly. At low rpm of less than 680, vibration is expected or can be feel at the steering wheel. Check your ICV. The vane in the ICV could be sticky. Most mechanic will removed the ICV and sprayed lubricating oil like WD40 to remove the dirt trapped in the ICV. If it doesn't work, then they will recoomend that you change it. (Usually they will spray with WD40 and shake it. They will then drain the oil and blow dry with compress air). BTW, 1000rpm idling speed is too high. You might need to adapt the idling speed with a GT1 or INPA diagnostic tool. [/QUOTE]
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car shaking while idling without aircond
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