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Engine noise? Whine?

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Old 03-05-2014, 05:16 PM   #1
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Engine noise? Whine?

I think the best way to describe this noise is...when you have low power steering fluid and turn the steering wheel make that eh eh sound? Its kinda like that I hear it as soon as I start the truck 4.0L. My P/S fluid id full and it doesn't make that sound while turning. To me it seems to be coming from D/S of the engine.
I am not sure if it's an idler wheel or alt bearing going bad.

Ant thoughts?
Thanks
Otto
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Old 03-05-2014, 05:29 PM   #2
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Engine noise

What year and how many miles I have seen a few idle pulleys make noise start it up and use a long screw driver and put it on the bolt of the idler pulleys and see which one is louder don't get the screw driver caught in the belt tho
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Old 03-05-2014, 05:39 PM   #3
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2011 65k miles will I hear the whine if I use the lomg screwdriver trick? or just thr rumble of the bearing?
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Old 03-05-2014, 05:49 PM   #4
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Engine noise

With the screwdriver trick and if you find a failed bearing it will be an extremly loud whirring type noise it will sound different from the others
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Old 03-05-2014, 05:56 PM   #5
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ABS check.
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Old 03-05-2014, 06:02 PM   #6
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Abs? Noise is while in park. It does get a bit louder when i rev engine
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Old 03-05-2014, 06:04 PM   #7
Slow as shit. Cute as Hell.
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Sorry, thought it was on start up only.
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Old 03-06-2014, 02:52 PM   #8
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FOUND IT!!......Bad Idler pulley....it was the one right by the Alt.
while I got skid down I'll take out diff drop and change plugs while it's in a warm garage.
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Old 03-06-2014, 06:40 PM   #9
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Noise

Glad you found it pretty noticeable wasn't it
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Old 03-06-2014, 07:18 PM   #10
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Well what I did was buy 2 idlers anda belt. Replaced both idlers andwhile spinning it in my hands i heard andfelt it crunchy
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Old 03-13-2014, 10:21 PM   #11
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Dealing with this now... plan on replacing the 3 pulleys and belt this weekend. It better not be the tensioner pulley (the only part I didn't buy). The sound is getting pretty damn loud though.

Good info here on it:
http://www.tacomaworld.com/forum/2nd...tine-belt.html
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Old 03-14-2014, 04:22 AM   #12
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I am keeping the old idlers, press out old bearings and press in new ones so I'll have spares. bearings are cheap.


good luck Standingcow .let us know how ya make out and which idler it was.
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