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The BMW Range
3 Series
E36
E36 M3 : Vibrating + Low Idle RPM
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<blockquote data-quote="ersalle" data-source="post: 423160" data-attributes="member: 363"><p>Check for vaccum leak, before jumping to idle control valve check the crankcase ventilation diaphragm pump see if itis leaking(the plastic is brittle if its been there for too long). The symptom is you can hear loud hissing after revving the engine. Check also all the vaccum hoses leading to the air intake manifold or air intake hose.</p></blockquote><p></p>
[QUOTE="ersalle, post: 423160, member: 363"] Check for vaccum leak, before jumping to idle control valve check the crankcase ventilation diaphragm pump see if itis leaking(the plastic is brittle if its been there for too long). The symptom is you can hear loud hissing after revving the engine. Check also all the vaccum hoses leading to the air intake manifold or air intake hose. [/QUOTE]
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The BMW Range
3 Series
E36
E36 M3 : Vibrating + Low Idle RPM
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