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High pitched whining sound during start up

nutt14

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Hey guys! was wondering if you guys could help me figure something out. Every morning when I start my truck to warm it up I get this ridiculous high pitched whining sound coming from the engine and I can't pin point where it is coming from. It only last around 10 seconds after start up then goes away and only during the winter months. Truck rides fine and everything and never makes the sound after the truck has warmed up. I will try to post a vid soon. thx!
 

Coupe

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You might have a bearing going out in one of the idler pulleys.
 

nutt14

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I am replacing the belts this weekend, I inspected them and a few cracks here and there I didn't think they were to bad. Also will check the pulleys and will post results later. I appreciate the help from you guys thanks a bunch!
 

cmart357

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Yeah I have had that noise on plenty of cars. Strong odds are a loose/bad belt or pulley. Got the same noise on my econo s#*t box geo but im waiting till it breaks. The xrunner gets all the attention in the garage these days :)
 

nutt14

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welp I changed my belts and it took just over 2 hrs. The super charger belt was worn pretty bad but the other had no signs of wear. first time changing the belts on this truck and im at 50k miles. Oh and the squeal is gone btw
 

Torspd

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Took a while to get to it, but easy enough fix. :top:
 
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