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<blockquote data-quote="Drowner" data-source="post: 529014" data-attributes="member: 555873">I&#039;m in the middle of deadening a 2004 Hyundai Accent.&nbsp; I&#039;m doing it over a few weeks so I&#039;ve been driving the car w/out the interior in it.&nbsp; (The comments I&#039;m getting when I use a drive through are priceless! &quot;Oh dam...&nbsp; I thought you had an oven back there with all of that foil!&quot; //content.invisioncic.com/y282845/emoticons/wow.gif.23d729408e9177caa2a0ed6a2ba6588e.gif )Anyway, after I took the back seat and trunk panels out of the car I started hearing a very high pitch tone.&nbsp; I can&#039;t tell where it is comming from except that it&#039;s towards the trunk.I thought it might be the exhaust but the only time I can get the pitch to change is when I cause a voltage drop (by rolling the windows up and down).&nbsp; I think this rules out anything to do with the engine.&nbsp; So that leaves electrical or maybe the fuel pump?&nbsp; Any ideas on how to track this thing down? :stuck:</blockquote>

[QUOTE="Drowner, post: 529014, member: 555873"] I'm in the middle of deadening a 2004 Hyundai Accent. I'm doing it over a few weeks so I've been driving the car w/out the interior in it. (The comments I'm getting when I use a drive through are priceless! "Oh dam... I thought you had an oven back there with all of that foil!" [IMG]//content.invisioncic.com/y282845/emoticons/wow.gif.23d729408e9177caa2a0ed6a2ba6588e.gif[/IMG] ) Anyway, after I took the back seat and trunk panels out of the car I started hearing a very high pitch tone. I can't tell where it is comming from except that it's towards the trunk. I thought it might be the exhaust but the only time I can get the pitch to change is when I cause a voltage drop (by rolling the windows up and down). I think this rules out anything to do with the engine. So that leaves electrical or maybe the fuel pump? Any ideas on how to track this thing down? :stuck: [/QUOTE]

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