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The BMW Range
5 Series
E34
RPM slow to drop to idle
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<blockquote data-quote="deepblueE34" data-source="post: 730277" data-attributes="member: 25014"><p>Finally, <strong>RESOLVED</strong>!</p><p></p><p>I just changed my throttle body and my idling/RPM is back to its good self.</p><p></p><p>Here is a summery of the problem and how it was fixed.</p><p></p><p><strong>Problem:</strong></p><ul> <li data-xf-list-type="ul">RPM indicator gets stuck at 1.3-.1.5K RPM for few seconds after car comes to a halt and when disengaging gear</li> <li data-xf-list-type="ul">Engine moves very slowly to its idle speed and gets stuck momentarily on its way there</li> <li data-xf-list-type="ul">Engine idles at 800 RPM and sounds louder than it should</li> <li data-xf-list-type="ul">Acceleration seems to be slightly impeded</li> </ul><p><strong>What didn't help (maybe did but unnoticeable):</strong></p><ul> <li data-xf-list-type="ul">Changing ICV to a second-hand one after cleaning it</li> <li data-xf-list-type="ul">Changing accelerator cable</li> <li data-xf-list-type="ul">Changing TPS to a second-hand one</li> <li data-xf-list-type="ul">Cleaning MAF sensor with MAF cleaner</li> <li data-xf-list-type="ul">Adding injector cleaner to gas</li> </ul><p><strong>What helped:</strong></p><ul> <li data-xf-list-type="ul">Installing used throttle body after cleaning it with TB cleaner </li> </ul><p></p><p><strong>Behavior after fix:</strong></p><ul> <li data-xf-list-type="ul">Car RPM indicator moves smoothly (no stops) to its idling speed (~650 RPM) when coming to a halt</li> <li data-xf-list-type="ul">RPM varies when disengaging gear and shifting</li> </ul></blockquote><p></p>
[QUOTE="deepblueE34, post: 730277, member: 25014"] Finally, [B]RESOLVED[/B]! I just changed my throttle body and my idling/RPM is back to its good self. Here is a summery of the problem and how it was fixed. [B]Problem:[/B] [LIST][*]RPM indicator gets stuck at 1.3-.1.5K RPM for few seconds after car comes to a halt and when disengaging gear [*]Engine moves very slowly to its idle speed and gets stuck momentarily on its way there [*]Engine idles at 800 RPM and sounds louder than it should [*]Acceleration seems to be slightly impeded [/LIST] [B]What didn't help (maybe did but unnoticeable):[/B] [LIST][*]Changing ICV to a second-hand one after cleaning it [*]Changing accelerator cable [*]Changing TPS to a second-hand one [*]Cleaning MAF sensor with MAF cleaner [*]Adding injector cleaner to gas [/LIST] [B]What helped:[/B] [LIST][*]Installing used throttle body after cleaning it with TB cleaner [/LIST] [B]Behavior after fix:[/B] [LIST][*]Car RPM indicator moves smoothly (no stops) to its idling speed (~650 RPM) when coming to a halt [*]RPM varies when disengaging gear and shifting [/LIST] [/QUOTE]
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E34
RPM slow to drop to idle
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