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	<id>https://www.3swiki.org/index.php?action=history&amp;feed=atom&amp;title=Turbo%3A_Troubleshoot_Owl_Sound_on_Acceleration</id>
	<title>Turbo: Troubleshoot Owl Sound on Acceleration - Revision history</title>
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	<updated>2026-06-04T12:33:49Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.3swiki.org/index.php?title=Turbo:_Troubleshoot_Owl_Sound_on_Acceleration&amp;diff=2081&amp;oldid=prev</id>
		<title>Stealthify at 03:09, July 4, 2012</title>
		<link rel="alternate" type="text/html" href="https://www.3swiki.org/index.php?title=Turbo:_Troubleshoot_Owl_Sound_on_Acceleration&amp;diff=2081&amp;oldid=prev"/>
		<updated>2012-07-04T03:09:29Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
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				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 03:09, July 4, 2012&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot; &gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:How To]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:How To]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Turbocharger]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:Turbocharger]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;On your Turbo-charged car, there are a few special pieces that N/A cars do not have, a Blow Off Valve or BOV is one of them. Your BOV acts as a pressure release valve for your car. When your turbos produce pressure(boost), it flows into your combustion chamber. When you let off the gas the Throttle Body plate closes. There is still pressure trapped in your lines leading from the turbos to your Throttle Body. This is where the BOV comes into play. Instead of the pressure flowing back into your turbo and causing backspin or compressor surge (your turbos violently start to spin backward...VERY BAD)your BOV opens and the boost is released through this valve. (That is the whoosh sound) When you are accelerating and you hear a hooting sound, it usually means that your BOV is leaking (releasing pressure when it should be closed) There are two possible fixes. One is to replace the BOV. It is located coming off the Y-pipe and connecting back to your T-pipe just after your air flow sensor.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;On your Turbo-charged car, there are a few special pieces that N/A cars do not have, a Blow Off Valve or BOV is one of them. Your BOV acts as a pressure release valve for your car. When your turbos produce pressure (boost), it flows into your combustion chamber. When you let off the gas the Throttle Body plate closes. There is still pressure trapped in your lines leading from the turbos to your Throttle Body. This is where the BOV comes into play. Instead of the pressure flowing back into your turbo and causing backspin or compressor surge (your turbos violently start to spin backward...VERY BAD) your BOV opens and the boost is released through this valve. (That is the whoosh sound) When you are accelerating and you hear a hooting sound, it usually means that your BOV is leaking (releasing pressure when it should be closed) There are two possible fixes. One is to replace the BOV. It is located coming off the Y-pipe and connecting back to your T-pipe just after your air flow sensor.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;An alternate fix that may work is to flip the inlet and outlet around. This way, instead of boost pressure trying to push the valve open, it helps seal it tighter. This will help stop the leak (as noted by the hooting sound going away), there does not appear to be any side effects (no turbo surge), and you can hear the normal operating sound of the BOV a little better.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;An alternate fix that may work is to flip the inlet and outlet around. This way, instead of boost pressure trying to push the valve open, it helps seal it tighter. This will help stop the leak (as noted by the hooting sound going away), there does not appear to be any side effects (no turbo surge), and you can hear the normal operating sound of the BOV a little better.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Stealthify</name></author>
		
	</entry>
	<entry>
		<id>https://www.3swiki.org/index.php?title=Turbo:_Troubleshoot_Owl_Sound_on_Acceleration&amp;diff=2080&amp;oldid=prev</id>
		<title>Stealthify: Created page with &quot;Category:How To Category:Turbocharger On your Turbo-charged car, there are a few special pieces that N/A cars do not have, a Blow Off Valve or BOV is one of them. Your...&quot;</title>
		<link rel="alternate" type="text/html" href="https://www.3swiki.org/index.php?title=Turbo:_Troubleshoot_Owl_Sound_on_Acceleration&amp;diff=2080&amp;oldid=prev"/>
		<updated>2012-07-04T03:08:41Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;&lt;a href=&quot;/Category:How_To&quot; title=&quot;Category:How To&quot;&gt;Category:How To&lt;/a&gt; &lt;a href=&quot;/Category:Turbocharger&quot; title=&quot;Category:Turbocharger&quot;&gt;Category:Turbocharger&lt;/a&gt; On your Turbo-charged car, there are a few special pieces that N/A cars do not have, a Blow Off Valve or BOV is one of them. Your...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;[[Category:How To]]&lt;br /&gt;
[[Category:Turbocharger]]&lt;br /&gt;
On your Turbo-charged car, there are a few special pieces that N/A cars do not have, a Blow Off Valve or BOV is one of them. Your BOV acts as a pressure release valve for your car. When your turbos produce pressure(boost), it flows into your combustion chamber. When you let off the gas the Throttle Body plate closes. There is still pressure trapped in your lines leading from the turbos to your Throttle Body. This is where the BOV comes into play. Instead of the pressure flowing back into your turbo and causing backspin or compressor surge (your turbos violently start to spin backward...VERY BAD)your BOV opens and the boost is released through this valve. (That is the whoosh sound) When you are accelerating and you hear a hooting sound, it usually means that your BOV is leaking (releasing pressure when it should be closed) There are two possible fixes. One is to replace the BOV. It is located coming off the Y-pipe and connecting back to your T-pipe just after your air flow sensor.&lt;br /&gt;
&lt;br /&gt;
An alternate fix that may work is to flip the inlet and outlet around. This way, instead of boost pressure trying to push the valve open, it helps seal it tighter. This will help stop the leak (as noted by the hooting sound going away), there does not appear to be any side effects (no turbo surge), and you can hear the normal operating sound of the BOV a little better.&lt;/div&gt;</summary>
		<author><name>Stealthify</name></author>
		
	</entry>
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