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SportTrac Discussion
Engine & Drivetrain
Engine noises at start up
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<blockquote data-quote="Jerry Gerner 2" data-source="post: 906987" data-attributes="member: 67360"><p>The low tone noise at start up is probably the intake box since you say it goes away. Mine does ghat when it's cold out too, especially when I have my CAI on. It goes away aftr high idle and truck is warmed up, right? The high pitch noise could be as simple as moisture/ dirt in the alternator or the idler pulley, just replaced my idler pulley because it was worn out and making those noises.</p></blockquote><p></p>
[QUOTE="Jerry Gerner 2, post: 906987, member: 67360"] The low tone noise at start up is probably the intake box since you say it goes away. Mine does ghat when it's cold out too, especially when I have my CAI on. It goes away aftr high idle and truck is warmed up, right? The high pitch noise could be as simple as moisture/ dirt in the alternator or the idler pulley, just replaced my idler pulley because it was worn out and making those noises. [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
Engine noises at start up
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