getting the shakes...
#1
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getting the shakes...
Since I have owned my truck, I have noticed a vibration above 70 mph, that increases in intensity especially around an (indicated) 75 mph. Sometimes it feels road-induced, as in upon hitting a slight imperfection in the road, the suspension actually componds it and creates the shaking sensation. This activity has lately become worse. I am wondering if it may be due to needing front ball joints (likely lower and upper - both sides) or if it's tire-related. The front tires are newer and have about 80% tread on them, the rears, about 50%.
I noticed just how bad it really is while driving a friend's '95 2wd Cummins automatic for about 100 miles Saturday. It's much much smoother, but he also has about 160k less miles than I do. What are your thoughts, what should I check out, and is there anything you would reccommend that I do. Again, it's not noticeable under 65 or so, but I'm doing more interstate travel now, and with 70 -indicated- being about an actual 65 ph due to speedometer error, it's starting to bother me. Plus, I don't want to compromise safety. Thanks in advance for your thoughts.
I noticed just how bad it really is while driving a friend's '95 2wd Cummins automatic for about 100 miles Saturday. It's much much smoother, but he also has about 160k less miles than I do. What are your thoughts, what should I check out, and is there anything you would reccommend that I do. Again, it's not noticeable under 65 or so, but I'm doing more interstate travel now, and with 70 -indicated- being about an actual 65 ph due to speedometer error, it's starting to bother me. Plus, I don't want to compromise safety. Thanks in advance for your thoughts.
#2
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When was the last time you had your tires computer balanced ? That is what it sounds like to me since it only happens at a good rate of speed.
You may have thrown a weight ... sometimes that happens and people think "I just got it balanced, so that can't be the problem".
Can you track it down front / back / left / right ? I have seen worn out shocks act like this as well.
PISTOL
You may have thrown a weight ... sometimes that happens and people think "I just got it balanced, so that can't be the problem".
Can you track it down front / back / left / right ? I have seen worn out shocks act like this as well.
PISTOL
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That can be many things.
Check the ball joints, wheel bearings, shocks, alignment, caster, tire-balance, drive-shaft (u-joints and balanced), wheel joints and steering stabilizer (if so equipped). Any of those items can lead to a shimmy / vibration.
sometimes adding a steering stabilizer can help reduce things like death-wobble or shimmy but take note that you're numbing your feel for the road and only covering up a problem, not fixing it.
Check the ball joints, wheel bearings, shocks, alignment, caster, tire-balance, drive-shaft (u-joints and balanced), wheel joints and steering stabilizer (if so equipped). Any of those items can lead to a shimmy / vibration.
sometimes adding a steering stabilizer can help reduce things like death-wobble or shimmy but take note that you're numbing your feel for the road and only covering up a problem, not fixing it.
#5
I was having the same problem and finally got it solved.
It was tire related for me. My tires were balanced, but they were out of round (egg shaped). I replaced with new ones and problem solved. Mechanic told me this condition occurs when the tires are not religiously balanced and rotated.
Good luck.
It was tire related for me. My tires were balanced, but they were out of round (egg shaped). I replaced with new ones and problem solved. Mechanic told me this condition occurs when the tires are not religiously balanced and rotated.
Good luck.
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