Rear Problem Noise Need Your Help
Thread Starter
Burning Brakes
Joined: Nov 2014
Posts: 920
Likes: 190
From: Stoneham, MA
Rear Problem Noise Need Your Help
This is for my 1999 C5 Base Coupe w/25,800 miles.
There is excessive what sounds like road noise in the back driving local or on the Highway. On the Highway, the Hollow Road Sound will drown out the radio unless it's cranked up. Sounds like I'm riding on rough pavement. There's also a rattle when driving on bumps that sounds like a loose shock but it's not a shock.
Anybody experience this excessive noise? There's brand new Non Run Flat tires on the car and it didn't help at all.
You help is appreciated
There is excessive what sounds like road noise in the back driving local or on the Highway. On the Highway, the Hollow Road Sound will drown out the radio unless it's cranked up. Sounds like I'm riding on rough pavement. There's also a rattle when driving on bumps that sounds like a loose shock but it's not a shock.
Anybody experience this excessive noise? There's brand new Non Run Flat tires on the car and it didn't help at all.
You help is appreciated
Drifting
Joined: Sep 2009
Posts: 1,862
Likes: 594
From: Prescott, Arizona
Does it favor one side? Have someone ride with you to confirm if the noise is really road noise or maybe coming from a wheel bearing.
Lift the rear and check for wheel looseness. Rotate them to see if you hear any noise. Both rear wheels should rotate together if the the car is lifted and in neutral. If the differential clutch packs are in good shape, it can take 50- 100 foot pounds to rotate only one wheel while the other is stationary.
And check the stabilizer bar connectors for looseness. Shock grommets/ bushings tight?
Lift the rear and check for wheel looseness. Rotate them to see if you hear any noise. Both rear wheels should rotate together if the the car is lifted and in neutral. If the differential clutch packs are in good shape, it can take 50- 100 foot pounds to rotate only one wheel while the other is stationary.
And check the stabilizer bar connectors for looseness. Shock grommets/ bushings tight?
Thread Starter
Burning Brakes
Joined: Nov 2014
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From: Stoneham, MA
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Burning Brakes
Joined: Jul 2004
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From: Newport Beach, Southern California
This is for my 1999 C5 Base Coupe w/25,800 miles.
There is excessive what sounds like road noise in the back driving local or on the Highway. On the Highway, the Hollow Road Sound will drown out the radio unless it's cranked up. Sounds like I'm riding on rough pavement. There's also a rattle when driving on bumps that sounds like a loose shock but it's not a shock.
Anybody experience this excessive noise? There's brand new Non Run Flat tires on the car and it didn't help at all.
You help is appreciated
There is excessive what sounds like road noise in the back driving local or on the Highway. On the Highway, the Hollow Road Sound will drown out the radio unless it's cranked up. Sounds like I'm riding on rough pavement. There's also a rattle when driving on bumps that sounds like a loose shock but it's not a shock.
Anybody experience this excessive noise? There's brand new Non Run Flat tires on the car and it didn't help at all.
You help is appreciated
Wheel bearing
