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Old 09-29-2018, 06:03 PM
 
77,901 posts, read 60,048,025 times
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Going around a corner about 75mph, SUV sorta alongside me and it's a stronger corner than you'd see on a typical interstate.

All of the sudden the vehicle is into my lane a bit so I hit the brakes but I can see what I first think is their left tire wobbling like it's coming off or they had a blow out.

Instead as I drop back I can see both tires wobbling rapidly back and forth but the car isn't swerving wildly but they HAD to be feeling their vehicle shake etc. This went on for maybe 200 yards before the dual wobbling subsided.

Side note: They never even pulled over, but rather just kept going down the road and I was at my destination shortly thereafter.

Bizarre since they initially lost control enough to almost side-swipe me.

What sort of mechanical issue do they have? Just curious.
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Old 09-29-2018, 06:08 PM
 
Location: Aurora Denveralis
8,712 posts, read 6,691,499 times
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If it's an older vehicle, probably bad shocks. A hard bump or shift will set a live axle (straight - not IRS) bouncing, and if the shocks are too weak to damp out the wiggle, it can go on quite a while. And contribute to complete loss of control in the right/wrong situations.

I once followed an older pickup (ca. 1970 vintage) that had no rear shocks installed. Every time he hit a bump of any size, including ones you'd normally never notice, the rear axle jackhammered up and down at a helluva rate.
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Old 09-29-2018, 06:18 PM
 
Location: Oak Bowery
2,872 posts, read 2,041,268 times
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There were bushings on my Land Rover, that when worn out, would give the front end some significant shakes occasionally. I replaced them myself- not fun - and that resolved the issue.
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Old 09-29-2018, 06:20 PM
 
Location: Riverside Ca
22,146 posts, read 33,307,018 times
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Sounds like death wobble
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Old 09-29-2018, 06:32 PM
 
Location: Eastern NC
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Badly out of balance tires maybe. Loose lugs maybe.
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Old 09-29-2018, 08:52 PM
 
77,901 posts, read 60,048,025 times
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Quote:
Originally Posted by Quietude View Post
If it's an older vehicle, probably bad shocks. A hard bump or shift will set a live axle (straight - not IRS) bouncing, and if the shocks are too weak to damp out the wiggle, it can go on quite a while. And contribute to complete loss of control in the right/wrong situations.

I once followed an older pickup (ca. 1970 vintage) that had no rear shocks installed. Every time he hit a bump of any size, including ones you'd normally never notice, the rear axle jackhammered up and down at a helluva rate.
It was a older vehicle that looked a little worn but there really weren't bumps there. However, the rate of speed and the angle of turn could have exacerbated that.

They didn't go up and down though. 100% saying that at first notice, their front left wheel was probably 10-15% variant of center either way, I honestly thought it was coming off due to loose lug nuts at first glance.
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Old 09-29-2018, 08:54 PM
 
77,901 posts, read 60,048,025 times
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Quote:
Originally Posted by Electrician4you View Post
Sounds like death wobble
Watched a video on that and that's exactly what it looked like. +1
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Old 09-29-2018, 09:08 PM
 
Location: Riverside Ca
22,146 posts, read 33,307,018 times
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Quote:
Originally Posted by Mathguy View Post
Watched a video on that and that's exactly what it looked like. +1
Had a 88 Chevy 4x truck that did that. Freaking scary the first time it did it. I didn’t know what was happening.
I had to rebuild the whole front end and weld the frame. All the rivets were loose from the death wobble
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Old 09-29-2018, 09:16 PM
 
Location: Metro Detroit Michigan
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How can anyone answer this question it could be a variety of reasons from a cheap fix to a very expensive you can’t tell by second hand information.
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Old 09-30-2018, 03:24 PM
 
77,901 posts, read 60,048,025 times
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Quote:
Originally Posted by easy62 View Post
How can anyone answer this question it could be a variety of reasons from a cheap fix to a very expensive you can’t tell by second hand information.
We're not looking for the cure, just a diagnosis of the affliction. It was an unknown 2nd driver.
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