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Toyota 4Runner Vibrations

156 messages,  Last post on Oct 29, 2009 at 4:34 AM

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What is this discussion about? Toyota 4Runner, Tires, Wheels, Suspension, SUV

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#153 of 156 Re: Vibrations while driving at freeway speeds [jokol2] by rick_v1 Oct 17, 2009 (4:01 pm)
Replying to: jokol2 (Nov 19, 2006 9:09 am) Mike,   I am having a vibration issue with my 94 4Runner. The car idles file but when I accelerate I get a vibration through out the car. The vibration stops when I take my foot off of the peddle. I had front end work 4 months ago and all went well with that. I had plugs replaced a month ago and all went well with that. I have 2 new tires on the back but older tires on the front. Besides that I can not think of anything that would be causing this vibration. Did you ever get a good solution? I ask because I have heard everything from tire rotations, to U joints, to engine mounts, but I have not seen any good solutions. Please help Replies to this message: 4runners (Oct 20, 2009 9:01 pm) rick_v1 (Oct 22, 2009 7:26 am)
#154 of 156 Re: Vibrations while driving at freeway speeds [rick_v1] by 4runners Oct 20, 2009 (9:01 pm)
Replying to: rick_v1 (Oct 17, 2009 4:01 pm) 1. what was done to the front end? 2. At what speed does it vibrate? or it just vibrates when you step on the gas. 3. Check you timing or your timing belt and see if it is loose or damage. 4. I don't know the design of the engine, but if it is possible, remove the timing cover and turn on the engine then check if the belt is loose or deflect at amount. It should not deflect much. Sometime the belt tensioner came loose or the bolt broke off and it cause engine vibration or not run smoothly. I have seen it happened. It is hard when diagnose when you are unable to hear or see the car to determine cause of the problem, but try checking what mentioned above.   I hope that help.   Can Replies to this message: rick_v1 (Oct 22, 2009 7:26 am)
#155 of 156 Re: Vibrations while driving at freeway speeds [4runners] by rick_v1 Oct 22, 2009 (7:26 am)
Replying to: 4runners (Oct 20, 2009 9:01 pm) Re Q1: I basically had my front replaced earlier this year...So this is not an area of focus with regards to this most recent issue   Re Q2: The vibration starts as I accelerate. There isn't a defined speed.   Re Q3: My timing belt is not the issue but that was a good suggestion. I had my timing belt replaced last year. So we are good there.   What I ended up doing was I took it to the shop. The shop explained that I have a "U Joint" issue. They also explained that I need to have my front barings replaced and greased. I pick up the truck today and will give an update when I know more.   So this is to be continued...
#156 of 156 4Runner Vibrations / Flubbering / Fluttering Steering...solved. by passinglane Oct 29, 2009 (4:34 am)
I have owned an 05 4Runner 4WD/6cyl - it had Dunlop tires that wore out a bit too soon, however it had no vibrations or issues for the 45,000 miles I had it.   Now, I have an 08 4Runner. It had really frightening vibrations, especially when weight was added in the cargo area, and when making turns that had a bump or two. But on a smooth freeway, half full of gas, no corners - it was smooth. The car only has 21k miles on it.   So, one shop trip they did an alignment. That did help make the car track nicely (not vague or twitchy on the freeway), but of course, the shimmy was still there. I had my Michelin tires balanced by a tire shop that had a nearly new Hunter (and all the claims of how they calibrate it often). They said they didn't need any special adapters to balance the wheels, and suspiciously, they had very thick weights on just the outside of the wheels (not a good sign). The tire shop balance job did improve things a bit, however the car still had some bad vibrations - the steering wheel bounced / rotated side to side nearly 2 inches at times. Very unsettling. Once one part of the suspension was vibrating with the road speed, other parts of the suspension and drivetrain seemed to "chime in" and resonate with each other .   Today, I got my car back from Bob Smith Toyota in La Crecenta. I left it there and just told them to please fix it, even if it takes a week. Good news! They balanced the tires very carefully, using a newer Hunter. When arrived to pick it up, I noticed that the weights were in the middle of the rim, on the inside, not those big weights on the outside. They also replaced both front shock absorbers because the left one was faulty. The tire balance was not enough by itself.   Now the car drives great - tracks well, no "fluttering", just right on, on bumpy freeways, around corners, whatever - all good now. It is odd that a nearly new car could have a bad shock absorber, but it obviously did. Cool that somebody actually checked things!   I'm not saying that there are no other issues that happen with other models, or other people's 4Runners, or that what fixed mine will fix yours. On this forum (I was lurking, wishing somebody could come up with a fix for me!) people mention 4Runners that have completely different suspension designs, tire sizes and age/condition. What I am saying is that taking the car to somebody who cares , who at least actually does balance the tires and look at the suspension, plus drive it and work with the Toyota reps made a huge difference in my case. After reading this forum, I thought that Toyota would just shine me on. Hopefully, this good experience was not just luck - they got it done this time.   Sadly, I was unable to convince anybody there to make the 2010 model more appealing to me - I'm probably going to keep my 2008.   I hope that this helps somebody who has issues with a newer 4Runner, or is as frustrated as I was.   See ya on the trails.

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