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  #1  
Old October 10th, 2012, 10:36 AM
SBrick
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Scott Brick
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engine squeal and RPM

Anyone have any idea what maybe causing a squeal in the engine especially when cold, that causes the RPM gauge not to read and than will start registering and the squeal goes away. This will continue squeal no rpm, rpm squeal is gone, until driven good and hot. most likely belt but unsure which one or where it is located. Thanks.
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  #2  
Old October 10th, 2012, 10:41 AM
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bjf
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barry f
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Quote:
Originally Posted by SBrick
Anyone have any idea what maybe causing a squeal in the engine especially when cold, that causes the RPM gauge not to read and than will start registering and the squeal goes away. This will continue squeal no rpm, rpm squeal is gone, until driven good and hot. most likely belt but unsure which one or where it is located. Thanks.
I had a squeal on start up. It was the bearing in the water pump shitting the bed.
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  #3  
Old October 10th, 2012, 10:43 AM
Naplm00
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Matthew
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Alternator belt is loose or the alt is seizing up.

The alt supplies the signal for the tach. When it is squeeling the belt is slipping over the alt pulley and it is not turning the alt, this means no RPM signal.

Have someone start the truck cold and look under the hood, wach the alt pulley.
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  #4  
Old October 10th, 2012, 11:04 AM
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Craig
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Registry
pulley tensioner bearing
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  #5  
Old October 10th, 2012, 11:07 AM
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chris
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ditto! ALTERNATOR
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Old October 10th, 2012, 11:18 AM
SBrick
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Scott Brick
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All belts are several years old greater than 6. Guess need to have them changed? Big deal??
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  #7  
Old October 10th, 2012, 11:27 AM
Naplm00
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Matthew
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if they are individual V belts, will take all of 30 min. a serp belt is about 5
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