99 Silverado weird noise during acceleration

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c - 03 Nov 2005 00:48 GMT

Have 90k miles 5.3 4x4.

For about 1 second, while accelerating, I hear the weirdest noise. It's
like a droning of sorts. Other than the sound, everything seems fine.

What could this be?

thanks.

chris

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Dennis Mayer - 03 Nov 2005 03:46 GMT

> Have 90k miles 5.3 4x4.
>
[quoted text clipped - 6 lines]
>
> chris

If it's the new body style..... & it is with the 5.3 motor...

It could be the drive shaft splined slip yoke sticking...

The yoke must extend & compress on axle wind up & over bumps..

The GM 'slippery' grease put on the splines ($35) or buy

the ($150) nickel plated slip yoke that doesn't stick.....

Be ware: There are a ton of Chev Slip yoke part Nos..

For ride quality improvement... Every Spring is a slip yoke

cleaning & greasing..... on my 00 5.3 Z-71 Ext. Cab LT.....

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