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My TL has a LOT of road noise. The tires (Yokohama’s) have 40K miles on them. I see from Eric’s pattern failure thread on this model that the recommendation is to use Michelin. I also get vibration at speed (45-60mph) and when braking (front rotors have 7k miles on them). Does anyone think these issues are all caused by the tires or are they multiple problems? I am loathe to get new tires as they still have lots of life left in them (I think???).
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Bad tires or even ONE bad tire can cause all kinds of weird and stupid handling problems. “Shakes ONLY when turning left at 25 MPH when the moon is a waning crescent and it is 78 degrees on a cloudy day and Adele crapped another annoying song” type stupid.
Like Jeeze WTF is happening?No need to buy new tires if you can find some good used ones at a shop.
Sometimes tires can LOOK good but have problems. 40,000 isn’t exactly new. Much abuse, bumps, highway speeds, turns, temperature changes…
I had some Cougar with a bad front tire even though it looked good. When I jacked it up and put the car in gear, the wheel looked out of round when rotating. Thing is when driving, the car would vibrate only during a certain speed range.
So the point is – Though Adele’s annoying music IS responsible for most of today’s problems, your TL probably just needs a fresh set of tires.
[quote=”random” post=162039]My TL has a LOT of road noise. The tires (Yokohama’s) have 40K miles on them. I see from Eric’s pattern failure thread on this model that the recommendation is to use Michelin. I also get vibration at speed (45-60mph) and when braking (front rotors have 7k miles on them). Does anyone think these issues are all caused by the tires or are they multiple problems? I am loathe to get new tires as they still have lots of life left in them (I think???).[/quote]
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You have 3 separate issues.1. Road Noise.
If you want little road noise then buy new quality tires many of which are relatively low noise if you do your research.
Old worn tires will typically get noisy with age and miles and some tire models are particularly bad once they get around half worn. 40000 miles is a lot of miles on your tires so you cannot expect them to be as quiet as a new tire.2. Vibration at Speed.
When did you last balance the wheels on the car? The speed at which the vibration is kicking in is typical of a wheel balance issue. If a decent wheel balance does not solve the vibration at speed issue then I would suspect there is an issue with one or more of the tires (not able to be balanced out) which is where I would be looking next. If you have a high mileage car(likely if a 1999 model ) I would be checking for excessive play in the front wheel bearings also.3. Vibration on Braking.
If new rotors are just thrown on the car (very typical) and no attention is paid to checking and correcting excessive run out, then you will get uneven wear on the rotors – “Disc Thickness Variation “. This can easily show up on newer rotors in the 7000 miles you said you had on them now. Once you have this uneven rotor wear you will get vibration when braking from speed. This will be very noticeable on down hill braking especially.
http://www.bendix.com.au/news/disc-thickness-variation-dtv-issue-14Thanks for all the replies. I think I’ll start with an inspection and rotation and then take it from there. I’ll look around for some Michelins as Eric recommends. If after all this I’m still getting vibration on braking, I’ll have the rotors checked and, if necessary, replace with slotted, again as Eric recommends. I doubt the bearings because the car has 96K on it and there is no play or growling and road noise does not diminish when turning left or right.
The first step should be to set the tire pressures. If they aren’t properly inflated it can cause all sorts of issues and noises. Then it’s time to do some light reading.
http://www.ericthecarguy.com/faq/determining-the-causes-of-vehicle-vibrationshttp://www.ericthecarguy.com/faq/solving-brake-problems?start=1#BrakeVibrationsWarpedRotorsorDrums
After rotating the tires (back to front), the shaking has greatly diminished particularly in the steering wheel so I suspect that at least one of the former front wheels was more unbalanced than either of the rears. Its good enough for me to not worry about new tires until next year (likely another 5k miles). Braking at speed still causes vibrations so I’ll check the rotors during the summer. Can the front/rear rotors be swapped on a TL?
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