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High pitched sound when starting vehicle in the morning?

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Old 01-22-2010, 06:22 AM   #1
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High pitched sound when starting vehicle in the morning?

I was wondering if anyone has had this before. When I start my Taco up in the morning, I get a high pitched screaching sound comeing from somewhere in the engine area. What is causing it?
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Old 01-22-2010, 06:25 AM   #2
braaap
steve o 77 is one of the sharper tools in the shedsteve o 77 is one of the sharper tools in the shedsteve o 77 is one of the sharper tools in the shedsteve o 77 is one of the sharper tools in the shedsteve o 77 is one of the sharper tools in the shedsteve o 77 is one of the sharper tools in the shedsteve o 77 is one of the sharper tools in the shedsteve o 77 is one of the sharper tools in the shedsteve o 77 is one of the sharper tools in the shedsteve o 77 is one of the sharper tools in the shedsteve o 77 is one of the sharper tools in the shed
 
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belts...
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Old 01-22-2010, 06:43 AM   #3
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Janster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shedJanster is one of the sharper tools in the shed
 
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Make sure the belt tensioner is working properly.

Inspect the belt & pulleys, make sure they're clean (don't spray anything on them).

Then - take the belt off and inspect the pulleys for bad bearings.

A squeek can be caused by a belt slipping (not tight enough) or a bearing going bad - a dry squeel and after they warm up, the lubrication inside the bearing flows to quiet them down.
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