2003 s10 4.3

2003 CHEVROLET S-10
150,000 MILES • 6 CYL • 2WD • AUTOMATIC
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RCREWS
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My s10 @ cold start makes a loud rattling sound for maybe 15 to 30 seconds and want do it again until the engine is cold. And it roars when your driving and its not the tires rearend or drive shaft. What could this be ?
Apr 7, 2011 at 2:03 PM
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JDL
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If it is a tapping noise, I suspect lifters, the oil hasn't fully circulated, yet.

The roaring noise, maybe exhaust? Radiator fan?
Apr 7, 2011 at 2:52 PM
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RCREWS
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This doesn't sound like a lifter tap this is a loud rattling sound just been doing about a week.

Apr 7, 2011 at 2:56 PM
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JDL
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It's hard for me to tell much from here. I'd have to try to listen to it and try to locate. I know trying to find a noise is a pain. Sometimes they are hard for me to locate ,also.
Apr 28, 2011 at 3:34 PM