96 Camry 2.2L, Vibration @ Idle in Gear

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Old 15 Nov 2006, 09:25 am   #1 (permalink)
Ralph Shapiro
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Default 96 Camry 2.2L, Vibration @ Idle in Gear

Just recently bought this car, 96 Camry 2.2L Auto, 83K miles. The previous
owner seems to have taken good care of the car, the service book is filled
in to at least 60K.
Car runs great, and good MPG.
I pulled the plugs, they look old, there is metal deposited on the ground
electrode. All other service items look OK. Not sure if the valves have been
adjusted, but they sound good.
My problem is at idle, in gear, the car seems to vibrate and shake more than
I would expect. This is based on how the car feels at idle, in park.
Any suggestions on this? Any known problems with engine/trans mounts? Could
one of the upper mounts been installed backwards when the timing belt was
changed?

--

Ralph Shapiro
Rohnert Park, CA 94928


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Old 15 Nov 2006, 10:27 am   #2 (permalink)
c
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Default Re: 96 Camry 2.2L, Vibration @ Idle in Gear

My 4 cyl tacoma was like that.....idled rough...shook a bit.

On mine; the idle speed is adjustable...just upping the speed ever so
slightly took care of it.

Changing the plugs and just doing a general tune-up as needed usually helps
as well. You might take a look at night and see if any of your spark plug
wires are arcing anywhere.

Chuck


"Ralph Shapiro" <ralph.shapiro@sonoma.edu> wrote in message
news:gjG6h.28$Q4.7111@okeanos.csu.net...
> Just recently bought this car, 96 Camry 2.2L Auto, 83K miles. The previous
> owner seems to have taken good care of the car, the service book is filled
> in to at least 60K.
> Car runs great, and good MPG.
> I pulled the plugs, they look old, there is metal deposited on the ground
> electrode. All other service items look OK. Not sure if the valves have
> been adjusted, but they sound good.
> My problem is at idle, in gear, the car seems to vibrate and shake more
> than I would expect. This is based on how the car feels at idle, in park.
> Any suggestions on this? Any known problems with engine/trans mounts?
> Could one of the upper mounts been installed backwards when the timing
> belt was changed?
>
> --
>
> Ralph Shapiro
> Rohnert Park, CA 94928
>
>



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Old 15 Nov 2006, 12:16 pm   #3 (permalink)
Daniel
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Default Re: 96 Camry 2.2L, Vibration @ Idle in Gear

Ralph Shapiro wrote:
> Just recently bought this car, 96 Camry 2.2L Auto, 83K miles. Any known problems with engine/trans mounts? Could
> one of the upper mounts been installed backwards when the timing belt was
> changed?

=============================
This is a longstanding and known problem.
I've got the '94 with the same engine and 150,000 miles.
There are several things you might do.
First, recognize that the four cylinder engine configuration means
there is a power stroke every 180 degrees of crankshaft rotation, and
the balance shafts don't have an effect at idle.
I should say I have been able to quell the idle roughness in gear
substantially.
Do check the "dog bone" upper engine mount, the "engine moving control
rod" for cracks in the rubber and replace if needed. By catching it
early, you help preserve the other engine mounts.
If your prior owner was like mine, they may have driven conservatively
and there can be some accumulation of carbon in the combustion
chambers. This is just my theory, but seems to have worked.
There's an old mechanic's trick of using water injection. Sorry I don't
remember the chemistry, one of the byproducts created is CO. I used a
low pressure garden type plastic spray bottle and nozzle, filled with
one quart of distilled water and slowly sprayed into the throttle body
of a hot engine at fast idle.
I also use Redline SI-1 complete fuel system cleaner. Used continuously
over time it removes deposits from the intake valves and emission
control components which enhance a smoother idle.
Also, sometimes the idle air control valve (aka IAC) sticks a little.
The best cure seems to be to remove the hose clamp at the air intake,
spray some Tri-Flow lubricant in the rectangular hole at the bottom of
the throttle body and let it soak in, over night if possible. The
Teflon seems to do a great job of freeing the rotating internal drum so
the computer controlled idle speed works more smoothly. The idle on
your engine is not manually adjustable.
Also check spark plug wires for resistance. I found two with infinite
resistance, and one spark plug shorting to ground inside the spark plug
tube. If you change the wires change the cap and rotor also. Toyota
parts only.
I also use Mobil 1 synthetic lubricants throughout, with 20% Lucas in
the motor oil to eliminate the valve guide seepage over night, and
three tablespoons Lucas transmission fix with the Mobil 1 ATF in the
power steering fluid when draining the reservoir with a battery bulb.
Transmission gets 8 ozs. with fluid change, Mobil 1 ATF. The
differential runs pure Mobil 1 ATF - and I noticed an immediate
increase in power after changing that fluid.
Plus the easy, quick, simple and free, way to eliminate vibration at
idle is just to move the shift lever into neutral. There is a lock out
for Reverse, so you just push the lever up, then back down into Drive.
Couple of days ago, I did this and honestly could not tell if the
engine was running. It was so smooth I had to look at the instrument
panel.
There was a factory service bulletin that included replacing the upper
radiator mounts, which I did, but not sure that made any difference.
'96 four cylinder Camry is a great car. Enjoy.

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Old 15 Nov 2006, 12:24 pm   #4 (permalink)
m Ransley
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Default Re: 96 Camry 2.2L, Vibration @ Idle in Gear

Reading plugs tells alot about a motors condition, there are photos in
most any manual. If what you say is metal is true you are melting the
plug or piston and your motor is history. Melting would means excessive
heat, is plug white and carbonless, or are the deposits carbon and its
black, if so it could be burning oil. Replace your plugs and read them.
running rough usualy means a tune up is necessary.

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Old 16 Nov 2006, 11:51 am   #5 (permalink)
Daniel
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Default Re: 96 Camry 2.2L, Vibration @ Idle in Gear

Daniel wrote:
> there can be some accumulation of carbon in the combustion
> chambers. This is just my theory, but seems to have worked.
> There's an old mechanic's trick of using water injection. Sorry I don't
> remember the chemistry, one of the byproducts created is CO.


I believe the other is H2, so the oxygen in H2O combines with the
carbon in the combustion chamber releasing CO and H2 (carbon monoxide
and hydrogen gas).

> three tablespoons Lucas transmission fix with the Mobil 1 ATF in the
> power steering fluid when draining the reservoir


That should read three tablespoons of the power steering product

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