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99 Suburban Highway Rumble

Nope, throwing it in neutral and coasting on the highway with engine off does not change the sound.
- Buick
- Post #15
- Aug 23, 2021
- Forum: Engine Performance + Maintenance
99 Suburban Highway Rumble

Unfortunately, he replaced the drive shaft with a brand new fabricated & balanced unit with new spicer ujoints and it did not solve the problem. I don’t believe it is a driveshaft problem.
- Buick
- Post #12
- Aug 21, 2021
- Forum: Engine Performance + Maintenance
99 Suburban Highway Rumble

That’s correct, same wheels. If I can find a place that will road force balance, I may give it a shot.
- Buick
- Post #11
- Aug 21, 2021
- Forum: Engine Performance + Maintenance
99 Suburban Highway Rumble

Well, I may just have to tear into the bearings this weekend then. Maybe I can confirm the noise with the rear end on jack stands? I've got to say, the goose chase of wasted time is worse part when you realize the labor was for nothing. I guess I can chalk it up to "preventive" maintenance. LOO
- Buick
- Post #7
- Aug 20, 2021
- Forum: Engine Performance + Maintenance
99 Suburban Highway Rumble

No, turning (and even pavement types) seems to not affect the noise. I've seen a lot of threads say it could be tire balance, but the noise remained the same from the old tires set to the new ones. I was also thinking rear axle shaft/wheel bearings as well.
- Buick
- Post #3
- Aug 20, 2021
- Forum: Engine Performance + Maintenance
99 Suburban Highway Rumble

Hey Guys, been a LONG time lurker on this forum, but I'm finally at wits end with my '99 K1500 Suburban. At highway speeds, between roughly 65-75MPH, there is a pronounced low frequency rumble. It is pretty loud, but difficult to determine where on the vehicle its coming from. Along with the...
- Buick
- Thread
- Aug 20, 2021
- differential driveline noise driveline vibration driveshaft highway rumble highway vibration rumble ujoints vibration
- Replies: 20
- Forum: Engine Performance + Maintenance