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Humming noise

Ryan2828

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Ryan2828 Enthusiast

Ryan2828

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Posted

2017 silverado 5.3 with 3:42 gears. So i’ve been having this issue with a humming noise that starts around 40 and is heard up to 75 mph. It literally showed up one day on the way to work on the highway. Truck had about 7,000 miles on it and the weather just turned cold. Sometimes its rythmic(4 seconds of noise then no noise). Sometimes its constant. Coming from front driverside. Can barely feel it in my feet when it occurs. The kicker is when i hear it i can put it into 4wd auto and the noise immediately goes away. If i drive for about 15 miles of highway the noise will also fade out if i dont do the 4wd auto trick.  I’ve done some searching and saw a forum about this issue back in 2015 but cant really find anymore about it. The forum also said it was a front differential issue and guys were having them replaced after a lot of battling with gm. Most said the noise came back after 1000 miles of having the diff replaced. Any help is appreciated with this. I’m trying to get all the info i can before i do the service manager shuffle.

  • 2 years later...
Booj1717 New Member

Booj1717

Posted
Posted

@Ryan2828 did you ever get this sorted? Same problem on my 2018 - in 2wd rhythmic hum coming from front drivers side. Only in 2wd; if I switch to "auto" the noise stops; switch back to 2wd and there it is again. Seems to happen between 70kmph+... trying to work with a dealer now to figure it out. So far theyve changed transmission fluid and done an alignment but no luck.

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