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AOS finally surrendered AOS finally surrendered
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Old 10-08-2015, 02:50 PM   #1
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AOS finally surrendered
After 115,000 miles my air oil separator failed. I didn't get to enjoy the smoke screen most provide but it did start to squeel really bad. I took it to the shop thinking it was a belt, pulley or pump, but mechanic says it was AOS, he also said my throttle body was really coked up like tony Montana

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Old 10-08-2015, 03:07 PM   #2
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Tell us more about the squeak? Why would it squeak? there are moving parts in there??
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Old 10-08-2015, 03:16 PM   #3
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That's the same question I had. he hasn't answered my email about that yet. Can anyone enlighten?
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Old 10-08-2015, 03:20 PM   #4
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Something to do with the sound of the increased vacuum and blow by
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Old 10-08-2015, 05:33 PM   #5
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The diaphragm inside begins to tear and must make a squeaking/squealing noise from the vacuum leaking thru the 2 pieces. Kinda like pinching the end of a ballon when the air is coming out.
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Old 10-10-2015, 07:32 PM   #6
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I just replaced mine because it was puffing a blue cloud at startup, it only took 1 hour.

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Old 10-10-2015, 08:26 PM   #7
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Quote:
Originally Posted by jcslocum View Post
The diaphragm inside begins to tear and must make a squeaking/squealing noise from the vacuum leaking thru the 2 pieces. Kinda like pinching the end of a ballon when the air is coming out.
Exactly. There was a pretty good size tear in the diaphragm in the original one that came out of the car. I paid 121.00 for a new part and labor was free. My mechanic used my wheel spacers to send to his cnc buddy to make copies for his car.

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