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95.5-2004 Tacomas & 96-2002 4Runners 4th gen pickups and 3rd gen 4Runners

High pitched engine noise

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Old 03-24-2008, 07:43 AM
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High pitched engine noise

My taco makes a high pitched noise when i put it in drive...it doesnt make it when i am accelerating only while idling...Just a loose belt or something major?
Old 03-24-2008, 08:22 AM
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Probably a squeaky idler pully bearing.
Old 03-24-2008, 08:32 AM
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Easiest way to troubleshoot noisy accessory pullies/belts is to remove a belt and then run your engine for 30 seconds and see if the noise is gone. It has never failed to help me find the noise.

Rob

Last edited by rdlsz24; 03-24-2008 at 08:35 AM.
Old 07-20-2008, 08:23 PM
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Huh I have the exact opposite problem. Mine is noisy under acceleration.

Aaron
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