94 Camry vibration STILL not resolved - plz help

Reply
 
LinkBack Thread Tools Display Modes
Old 22 Mar 2005, 09:14 am   #1 (permalink)
no_email@sorry.com
Guest
  • Posts: n/a
  • User Status:


Default 94 Camry vibration STILL not resolved - plz help

Hey all.. thanks for reading this. I know there have been a ton of posts in
this NG about Camry vibration, and I've read as many as I could find but
I've still got the problem. So here goes my rant:

94 Camry LE 4-cyl
167k miles

The car vibrates at idle (like at a traffic light) ALOT. Vibration almost
completey ceases if I shift it up into neutral or park. It doesn't vibrate
during driving at any speed. It only vibrates at idle.. as soon as I hit the
gas, vibration's gone. Also, the vibration is MUCH more severe during colder
weather.

*replacements I've made recently:*
radiator & radiator cap (~6 months ago)
dog bone mount (it was cracked)
front mount (hydraulic, aftermarket)
spark plugs (NGK)
wires (Xact)
distributor cap
distributor (reman.)
rotor
fuel filter (i know toyota says you dont ever need to replace it, but what
the hell)
air filter

*repairs:*
wheel balance & rotation & tire pressure adjustment
removed & cleaned throttle body (including spraying carb cleaner in the IAC
valve hole as described in several posts here)
oil change using DuraLube & valvoline high mileage 10w-30 & PureONE filter

*planned repairs/replacements:*
valve cover gasket
gas & oil caps

had my timing checked at the dealer, said it was fine.
I've used Redline intermittently several months ago, am considering using it
again as I'm quickly running out of affordable options.

a DIY techie friend of mine told me about a method to clean the fuel
injectors. he described pulling one of the vacuum hoses that feeds into the
throttle body and pouring fuel injector cleaning into it. he said i'd have
to rev the engine up to 2-3k to get it to work through. the cleaner
"Seafoam" describes a similar process (pouring it into a vacuum). Any ever
try this, or have any luck with it?
My check engine light has never come on. The car drives smoothly,
accelerates without hestitation, doesnt make too much noise.

So finally heres my list of annoying questions for you infinitly patient
people :>
I read a couple posts about people pinpointing the problem to their exhaust.
Is is possible that a loose/worn/ whatever something in my exhaust can cause
the entire engine and car to vibrate at idle? But then it goes away when I
shift up into Neutral.
I've used fuel injector cleaner in the gas tank before, prior to using
Redline (which, BTW, i think did make some noticeable improvement). Would it
be worth doing a fuel system cleaning at a shop? Would I be better off
pulling the injectors out myself and cleaning them outside the engine since
all the shops do inline cleaning only?
I've never replaced my O2 sensors. Can I check them somehow? Could they
cause vibration? I ask only because the vibration seems to be worse in
colder weather, so I think its because of some air-related component.
I did a quick (not too thorough) inspection of my vacuum hoses, and they
seem to be working according to my Haynes manual. Any possibility that the
vibration could be caused by something up around there?
Another friend of mine said its the "torque converter" in the transmission.
I've never heard of this before but he seemed very confident about it. He
does all his own car work and said his sister's car had the same problem.
Anyone ever hear of this?

<end rant>

any opinions/ideas/suggestions/criticisms even flames are more than welcome.


-elric-
  Reply With Quote
Old 22 Mar 2005, 09:22 am   #2 (permalink)
badgolferman
Guest
  • Posts: n/a
  • User Status:


Default Re: 94 Camry vibration STILL not resolved - plz help

no_email@sorry.com wrote:

> Hey all.. thanks for reading this. I know there have been a ton of
> posts in this NG about Camry vibration, and I've read as many as I
> could find but I've still got the problem. So here goes my rant:
>
> 94 Camry LE 4-cyl
> 167k miles
>
> The car vibrates at idle (like at a traffic light) ALOT. Vibration
> almost completey ceases if I shift it up into neutral or park. It
> doesn't vibrate during driving at any speed. It only vibrates at
> idle.. as soon as I hit the gas, vibration's gone. Also, the
> vibration is MUCH more severe during colder weather.
>
> *replacements I've made recently:*
> radiator & radiator cap (~6 months ago)
> dog bone mount (it was cracked)
> front mount (hydraulic, aftermarket)
> spark plugs (NGK)
> wires (Xact)
> distributor cap
> distributor (reman.)
> rotor
> fuel filter (i know toyota says you dont ever need to replace it, but
> what the hell)
> air filter
>
> *repairs:*
> wheel balance & rotation & tire pressure adjustment
> removed & cleaned throttle body (including spraying carb cleaner in
> the IAC valve hole as described in several posts here)
> oil change using DuraLube & valvoline high mileage 10w-30 & PureONE
> filter
>


[snipped]
>
> -elric-


If you have replaced two of the motor mounts you should check the third
one very carefully. It is possible that one is damaged also from the
force it took when the others failed.

--
No matter what happens, someone will find a way to take it too
seriously.
  Reply With Quote
Old 22 Mar 2005, 03:42 pm   #3 (permalink)
m Ransley
Guest
  • Posts: n/a
  • User Status:


Default Re: 94 Camry vibration STILL not resolved - plz help

How low is the rpm when it vibrates. does it show good firing on a scope
at idle. Coil and voltage in and out are something you could check. I
had that issue Bosch 4s cured it.

  Reply With Quote
Old 23 Mar 2005, 07:23 am   #4 (permalink)
sorry@no-email.com
Guest
  • Posts: n/a
  • User Status:


Default Re: 94 Camry vibration STILL not resolved - plz help

The dogbone mount was cracked at one end.. Others recommended changing the
front one too, saying that if the dogbone broke, then chances are its b/c of
the front mount. But when I removed and inspected the front mount, it
*looked* fine. I emphasized *looked* because I dont really know its
condition by just visually inspecting it.
Any advice on how to check the rear mount without removing it?

Thanks
  Reply With Quote
Old 23 Mar 2005, 08:35 am   #5 (permalink)
badgolferman
Guest
  • Posts: n/a
  • User Status:


Default Re: 94 Camry vibration STILL not resolved - plz help

sorry@no-email.com wrote:

> The dogbone mount was cracked at one end.. Others recommended
> changing the front one too, saying that if the dogbone broke, then
> chances are its b/c of the front mount. But when I removed and
> inspected the front mount, it *looked* fine. I emphasized looked
> because I dont really know its condition by just visually inspecting
> it. Any advice on how to check the rear mount without removing it?
>
> Thanks


I didn't feel up to changing the rear one so I let Toyota take care of
that one.

It might be possible to tell by inspecting for hydraulic fluid on it.
Otherwise sometimes you can tell by holding the brake down and gunning
the engine. If it moves "excessively" then the mount is probably bad.
I was never able to completely eliminate the vibration in my 94 Camry
with 164K when I sold it. However my vibration was at a speed range
between 35-50 MPH. At idle it was pretty smooth.

Let me just say I am no auto expert. What I tell you is merely my
experience. It may be something else entirely. Perhaps you have an
electrical or vacuum problem.

--
No matter what happens, someone will find a way to take it too
seriously.
  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 05:45 am.

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.