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Engine Whine On 5.3l And 6.0l

hdeatsprius

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hdeatsprius Enthusiast

hdeatsprius

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Just wondering if anybody knows what the whining sound coming from the engine on 5.3 and 6.0L engines is. Ive had an 06 Z71 with the 5.3, ahd now an 07 2500HD Classic with the 6.0. Both engines are essentially the same, and both made a very irritating low whining sound. It changes with engine speed, becoming more high pitched. It seems to be worse on the 6.0L than is was on the 5.3L. Sometimes is louder than normal, and other times its almost unnoticeable. A dealer service person told me a while back that it is just an "engine characteristic." I dont really know if theres any truth in that or not, except to say that my friends 5.3 does the same thing. I've tried listening for a specific part, thinking it was possibly an alternator, or power steering pump, but I couldn't really tell for sure. I love my Silverado, but sometimes the whine is enough to drive me nuts. Right now my remedy is to just turn up the radio. Maybe a new exhaust system too....lol

Woodcutter Enthusiast

Woodcutter

Posted
Posted

My 99 Silverado had a noisy alternator, which I believe was common for GMT-800 trucks. This doesn't seem to be an issue with the new body style.

Kodiak450 Senior Enthusiast

Kodiak450

Posted
Posted

Try washing the trucks under chasis and to part too. You'd be surprised when stuff starts to work after you clean up your vehicle. Sounds very superstious I know. The other day I needed to use my winch on my ATV to pulll a tree up right , so that it would grow straight up, not out and on it's side. Anyway the winch would not work, I checked all terminals, fuses even sprayed them down with WD40, still nothing. Yesterday same thing, everything was intack and clean, so I went riding around, shot at a couple of deer then finally gave th ATV a much needed clean up with soap and lots of water. After that long, intense clean up miraclously the winch now works. Don't know why, but all of a sudden its working. It had to been the soap!

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