Shaking at highway speeds
#1
Shaking at highway speeds
So I have a 1999 4runner with 175000 miles and over the past year has begun to walk, shimmy or shake....whatever you wanna call it at highway speeds (over 60) and doesnt feel safe at all. I have put quite a bit of money trying to fix it, including...Brand new tires, new shocks, new steering rack bushings, alignment done 2 weeks ago, tire balanced. AND it still does it...fml! Could it have something to with the coils?? Please help me out if you have any ideas.Thanks
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#8
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I was having the same problem with mine. Try taking it to another shop and have the tires rebalanced. Sometimes the tire machines get out of wack. On my 4runner it doesn't take much weight off to feel the shake. You could also have a bent rim.
#9
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a quick search and you would have been on your way.
forget the family mechanic, at least for the runners tire balancing. probably dosnt have the right equipment for our rigs.
what you need is a shop that has a machine called the GSP9700 Road Force Balancer WITH a Haweka adapter. It can do one major thing no other machine can do....put a load on the tire as if it were on the ground.
Forget it, just read this ENTIRE article, then go get your fixed the right way!
http://www.gadgetonline.com/Vibration.htm
forget the family mechanic, at least for the runners tire balancing. probably dosnt have the right equipment for our rigs.
what you need is a shop that has a machine called the GSP9700 Road Force Balancer WITH a Haweka adapter. It can do one major thing no other machine can do....put a load on the tire as if it were on the ground.
Forget it, just read this ENTIRE article, then go get your fixed the right way!
http://www.gadgetonline.com/Vibration.htm
#10
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Good point, i had a shake , prob went on for 3 years. At X mph it would shake so much the seat belt would lock. At one point i got new tires a dif balancer, and switcwed rims around. It went away 90%.
#11
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I had this happen to me recently, but I knew my tires were balanced (dynabeads) ... turned out my panhard bar mount ripped off from the frame. Probably not very common, but you should check it.
#12
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I agree w/ okie81, probably driveshaft and more specifically u-joints. When they go bad they can make a 4runner shake like crazy right around 60 and it gets worse as you go faster - I've personally felt it before. Since you got the tires balanced already, I would move on from that if it were me and look elsewhere....like the driveshaft.
#15
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I'm gonna put some money on U-joints. I had a U-joint that grenaded itself after about a year of putting off replacing it, and having severe shaking at any speeds above 70 km/h.
#17
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Usually springs will sag when they're bad. You can test your shocks though, push up and down on the hood/jump on the back bumper and if your truck keeps bouncing after you let go, the shocks are shot.
#19
i did replace my shocks with bills but it seems that when i do it they dont stop immediatly but fairly soon after i stop