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2000 Silverado 5.3 Strange engine vibration

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New User

Dec 10, 2019, 8:50 PM

Post #1 of 2 (272 views)
2000 Silverado 5.3 Strange engine vibration Sign In

I was sitting in my truck tonight letting it warm up when I noticed this. There is a rhythmic, almost pulsing vibration while idling in park. It's just bad enough that I can feel it in the cab and my tools in my back seat rattle slightly.

My knowledge is mostly of older engines so I'm not super familiar with the newer generation of GM engine. Does anyone have any ideas what could cause something like this? Thanks!

2000 Silverado 5.3 liter with 240k miles.

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 11, 2019, 5:11 AM

Post #2 of 2 (244 views)
Re: 2000 Silverado 5.3 Strange engine vibration Sign In

With that kind of mileage it could be most anything. It's going to take someone physically examining the vehicle to get to the bottom of this.


We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.

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