91 Camry - Vibrations at high speed

Reply
 
LinkBack Thread Tools Display Modes
Old 18 Jan 2005, 04:31 am   #1 (permalink)
bauz
Guest
  • Posts: n/a
  • User Status:


Default 91 Camry - Vibrations at high speed

91 Camry, 3SFE, FWD, automatic, 96,000miles. I am experiencing 2 problems,
I'm not sure if they are related.
Above 20mph I can hear a low humming sound coming from the front. At 60
mph this sound is more noticeable. The tone is always low although it
changes with the speed. The sound pulsates at low rate (~1Hz) like out of
tune guitar. At higher speed, around 75mph, the sound is replaced by
strong vibrations, which seems to disappear at higher speeds.

The auto mechanic diagnosed that my transmission is about to die, since
there are dark deposits in the fluid (15k since last fluid change). He
said it is from the clutches inside. on the other hand, I do not notice
any problem with the transmission, the gears shift smoothly. Also, about 5
years ago a mechanic told me that there is a problem with the transmission,
and on every fluid change I heard the same prediction. I'm not an expert,
but I have a feeling that its not the problem.

I shifted to neutral when the sound was present, and there was no change -
therefore I assume its not the transmission.

I lifted the car, and noticed that the front left wheel has some degree of
freedom. by pushing the top in-out it moves about 1-2mm. The one on the
right is tight and doesn't move at all. I don't know if it acceptable or
not.

This problem was present even before I rotated the tires half a year ago,
although back then I didn't have the vibration problem.

My biggest concern right now is safety - I do not want the wheel to lock
when I'm driving on the highway. I also don't want to rebuild the
transmission just to find out it is not the reason.

I hope you would be able to guess what is the source of the problem, or
suggest more tests that I can perform to pinpoint the problem.

Thanks in advance!

  Reply With Quote
Old 18 Jan 2005, 07:02 am   #2 (permalink)
ROBMURR
Guest
  • Posts: n/a
  • User Status:


Default Re: 91 Camry - Vibrations at high speed

Wheel bearings or CV joints I bet.
  Reply With Quote
Old 18 Jan 2005, 07:50 am   #3 (permalink)
m Ransley
Guest
  • Posts: n/a
  • User Status:


Default Re: 91 Camry - Vibrations at high speed

Tires could be the vibration swithch them front to back or replace
fronts.

  Reply With Quote
Old 19 Jan 2005, 04:12 pm   #4 (permalink)
davidj92
Guest
  • Posts: n/a
  • User Status:


Default Re: 91 Camry - Vibrations at high speed

bauz wrote:
> Is it normal to have some degree of freedom when the wheel is in the
> air? Although it doesn't move much, it feels like a bad bearing,
> while the other wheel feels very tight. I don't have any experience
> with car bearings, only skateboard bearings, and I'm affraid to ask
> my mechanic because every time I ask them a question they
> automatically say that it should be replaced. I'm a student and I'm
> trying to avoid throwing money for nothing.
>
> Thank you for your help.


I don't think this is normal. The wheel bearings should have almost none to
no play in them. If more than that they should be replaced and are a safety
hazard as it could seperate or lock up. It is also possible the nut that
holds the whole outside wheel assembly is not torqued correctly.
Hopefully, someone will help me here as I'm not that experienced on front
wheel drive assembly. If not, consult your mechanic immediately as this is a
safety issue.
HTH, davidj92


  Reply With Quote
Old 19 Jan 2005, 04:16 pm   #5 (permalink)
davidj92
Guest
  • Posts: n/a
  • User Status:


Default Re: 91 Camry - Vibrations at high speed

bauz,
Also, at 96k miles, even though it's only been 15k since last trans service,
if the fluid is dark colored and not bright red I wouldn't remove trans pan
and filter but I would do a drain and fill on trans fluid.
HTH, davidj92


  Reply With Quote
Old 19 Jan 2005, 04:45 pm   #6 (permalink)
William W. Plummer
Guest
  • Posts: n/a
  • User Status:


Default Re: 91 Camry - Vibrations at high speed

davidj92 wrote:

> bauz wrote:
>
>>Is it normal to have some degree of freedom when the wheel is in the
>>air? Although it doesn't move much, it feels like a bad bearing,
>>while the other wheel feels very tight. I don't have any experience
>>with car bearings, only skateboard bearings, and I'm affraid to ask
>>my mechanic because every time I ask them a question they
>>automatically say that it should be replaced. I'm a student and I'm
>>trying to avoid throwing money for nothing.
>>
>>Thank you for your help.

>
>
> I don't think this is normal. The wheel bearings should have almost none to
> no play in them. If more than that they should be replaced and are a safety
> hazard as it could seperate or lock up. It is also possible the nut that
> holds the whole outside wheel assembly is not torqued correctly.
> Hopefully, someone will help me here as I'm not that experienced on front
> wheel drive assembly. If not, consult your mechanic immediately as this is a
> safety issue.
> HTH, davidj92
>
>

If there is any play in the wheel bearings, your brake pedal will be
soft. That's because the calipers have to travel a little extra to
right the disk.

Vibrations are almost always cured by a set of new tires. You might be
able to replace just one, but it is really hard to ID the culprit. The
steel belts can get dented out of round and it won't show up on a
dynamic tester. So if you have more than, say, 50K on your tires,
shot gun it with a whole new set.
  Reply With Quote
Old 20 Jan 2005, 03:13 am   #7 (permalink)
bauz
Guest
  • Posts: n/a
  • User Status:


Default Re: 91 Camry - Vibrations at high speed

Thank you all for your advice. I will follow your recomendations and
replace the bearings. I would also get a new set of tires. I hope that the
transmission would not break soon, but I do not want to take any chances
when it comes to safety.

Thanks!



  Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 10:35 pm.

Attribution:
Autoblog
Powered by Yahoo Answers



ToyotaLexusForum.com is an unofficial community for car enthusiasts. ToyotaLexusForum.com is not affiliated with Toyota Motor Corporation in any way.
Toyota Motor Corporation does not sponsor, support, or endorse ToyotaLexusForum.com in any way.
Copyright/trademark/sales mark infringements are not intended or implied.