Question about 2003 Chevrolet Silverado 2500HD

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Noise in transmission

I just bought a 2003 Chevy silverado 2500. It is a great truck and the engine runs strong and the truck drives out great. I had two mechanics look at it and both gave it good reports.

However, when I picked it up it made a whistling noise from the drive train. It shifts fine, accelerates a little slow in first gear. As soon as it shifts out of first (in drive), the noise goes away. I took it to another mechanic and asked him about it specifically and he said it is just a trait of the particular tranny.

Should it be something I need to look into or go with the ol phrase it aint broke don't fix it?

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I always say, if you can't find it to fix it, let it deveope into something you can.. Have your trans ofluid and flter changed and inspected. I love my o3 1500. The 2500 I expect would be a little stouter. Good Luck

Posted on Jun 25, 2009

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Had the same problem ,thouht it was a vacuum hose. i wond up be a cracked intake madifold, its made out of plastic and is prown to heat cracks. technically i was right about being a vacuum noise, to bad it $400.00 more than a hose

Posted on Jul 27, 2009

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Posted on Jan 02, 2017

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