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2016 Silverado 1500 Rumble Noise and Slight Vibration

David Wallace
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Mileguru Enthusiast

Mileguru

Posted
Posted
12 hours ago, David Wallace said:

Any luck?

All they were willing to do was TSB 18-NA-355, which is a fluid exchange for the new transmission fluid. I pushed to have the pan dropped and new filter put in after the fluid flush, but they said no. Time will tell if the new fluid cures it or if there is a deeper issue like the torque converter. Sadly, GM just does these little fixes to try and run out the clock on your warranty so that when the big problem hits, they're off the hook.

 

As I drove off the lot, I immediately had the intake sputtering noise that I tried to reproduce for them when I dropped it off, so I turned around after 100 feet and asked someone to go for a ride along. Of course it didn't make the noise when he was in the truck. We pulled into the nearby grocery store parking lot, turned off the engine, and popped the hood to see if letting the engine cool would get the sound to come back. THAT'S WHEN WE SAW A SCREWDRIVER LEFT ON THE RADIATOR COVER!!! I told him that's why I hate dealerships with a passion and all he could do was apologize. Luckily the screwdriver didn't cause any damage, but I still could not get the sound to come back, so I'll have to try again another day.

David Wallace Enthusiast

David Wallace

Posted
  • Author
Posted
On 4/8/2020 at 2:48 PM, David Wallace said:
 

The driveshaft shop said it was out of balance and it rides smooth now but the harmonic sound is still there... No idea what to do...

Update! I would have to say this is about 95% better, the sound and vibration is hardly ever there now. 

  • 4 weeks later...
David Wallace Enthusiast

David Wallace

Posted
  • Author
Posted
On 4/4/2020 at 8:17 AM, m3n00b said:

Honestly I hear and feel it. Not sure which more.  It happens every 3-4 seconds when it does.  

Any luck? also mine is the 6sp not 8..

m3n00b Enthusiast

m3n00b

Posted
Posted
Any luck? also mine is the 6sp not 8..
Not yet, haven't driven it much lately
RedGirl Enthusiast

RedGirl

Posted
Posted

Well my husband, who is tone death, can't hear or notice it, but when his Colorado Z71 was new I thought it felt real good on the road. Now at 40,000. During the last 8 or so months I refuse to drive it it sounds terrible. I thought maybe something in the wheels. It has a loud sound like something is rubbing, honestly I can tell what it sounds like but not pleasant. I have a mechanic I trust so he looked at it and drove it and he told me that he is sure it's the tires. It has the original Goodyear tires it came with. At some point we'll have to get new tires and I think I want Michelin's on there cause anyway this truck never goes off road.

Mileguru Enthusiast

Mileguru

Posted
Posted
On 4/7/2020 at 9:24 PM, Mileguru said:

All they were willing to do was TSB 18-NA-355, which is a fluid exchange for the new transmission fluid. I pushed to have the pan dropped and new filter put in after the fluid flush, but they said no. Time will tell if the new fluid cures it or if there is a deeper issue like the torque converter. Sadly, GM just does these little fixes to try and run out the clock on your warranty so that when the big problem hits, they're off the hook.

 

As I drove off the lot, I immediately had the intake sputtering noise that I tried to reproduce for them when I dropped it off, so I turned around after 100 feet and asked someone to go for a ride along. Of course it didn't make the noise when he was in the truck. We pulled into the nearby grocery store parking lot, turned off the engine, and popped the hood to see if letting the engine cool would get the sound to come back. THAT'S WHEN WE SAW A SCREWDRIVER LEFT ON THE RADIATOR COVER!!! I told him that's why I hate dealerships with a passion and all he could do was apologize. Luckily the screwdriver didn't cause any damage, but I still could not get the sound to come back, so I'll have to try again another day.

Follow up. The new fluid in the 8 speed has helped a lot. It's only been about 200-300 miles, but the clunks are very rare, the shifting is smoother, and the trans temp is WAY lower now.

 

And the exhaust issue I was having turned out to be a broken exhaust manifold gasket.

  • 1 month later...
David Wallace Enthusiast

David Wallace

Posted
  • Author
Posted
4 hours ago, m3n00b said:

Mine is in the shop now!  We'll see what they say.

Sweet, best of luck! I just swapped out my wheels and tires for stock and its improved big time. I think I have a bad wheel... it has so many weights on it.

m3n00b Enthusiast

m3n00b

Posted
Posted
Sweet, best of luck! I just swapped out my wheels and tires for stock and its improved big time. I think I have a bad wheel... it has so many weights on it.
They're changing the fluid to the new version. We shall see. He said it's fixed his other customer's trucks.
  • Like 1
m3n00b Enthusiast

m3n00b

Posted
Posted

OK it appears to be fixed with the blue fluid at 32k miles. Did a freeway run and didn't experience the vibes. Crossing fingers and knocking on wood.

 

 

  • 4 years later...
simon308 New Member

simon308

Posted
Posted

I have the same issue on my 2016 crew cab 183,000 miles. but it only happens between 50-54 mph. was your issue confirmed to be the driveshaft? 

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