Vacuum leak in a throttle body?
08-16-2010, 05:58 PM
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Vacuum leak in a throttle body?
Hi,
I have a 928 S automatic from -84. I'm a bit worried about whistling noise from a driver side engine while engine is hot and in idle. When engine is cold I can't hear any abnormal sounds.
Location is either 5th or 6th cylinder intake spider (rubber or engine side) or throttle body (axle?), is latter even possible? Or is it "design to leak" if there is vacuum more enough?
Car runs fine so this doesn't effect a lot, idle could be more steady but that is just splitting hairs..
Thanks in advance
-mikko
I have a 928 S automatic from -84. I'm a bit worried about whistling noise from a driver side engine while engine is hot and in idle. When engine is cold I can't hear any abnormal sounds.
Location is either 5th or 6th cylinder intake spider (rubber or engine side) or throttle body (axle?), is latter even possible? Or is it "design to leak" if there is vacuum more enough?
Car runs fine so this doesn't effect a lot, idle could be more steady but that is just splitting hairs..
Thanks in advance
-mikko
