stalling problem

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Old 10 May 2006, 02:42 pm   #1 (permalink)
Erhan
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Default stalling problem

Hi! I have a 93 Camry that stalls at traffic lights after it gets hot.
First the rpm starts going up and down and eventually the engine
chokes. So far I tried changing the MAP and Coolant Tmp Sensors and the
distributer. Does anyone have another idea? I appreciate your help.
Thanks.

Erhan

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Old 10 May 2006, 05:07 pm   #2 (permalink)
jg
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Default Re: stalling problem


"Erhan" <bilal.erhan@gmail.com> wrote in message
news:1147290128.918308.243090@j73g2000cwa.googlegr oups.com...
> Hi! I have a 93 Camry that stalls at traffic lights after it gets hot.
> First the rpm starts going up and down and eventually the engine
> chokes. So far I tried changing the MAP and Coolant Tmp Sensors and the
> distributer. Does anyone have another idea? I appreciate your help.
> Thanks.
>

Mine does that with the aircon on, but doesn't quite stall. Also does it
down hills in ODrive as if brakes are being applied/released but I think
that's an OD problem. I suspect the aircon fast idle is at least part of
problem but it's $175AUS ex Japan...


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Old 10 May 2006, 05:32 pm   #3 (permalink)
m Ransley
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Default Re: stalling problem

Did you change the ignition coil.

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Old 10 May 2006, 06:44 pm   #4 (permalink)
Erhan
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Default Re: stalling problem

No, but I read in other posts that this didn't solve the problem. It is
temperature dependent and it happens only at idle so I really believed
the CTS would fix it as it did for other people.

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Old 11 May 2006, 08:11 am   #5 (permalink)
Daniel
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Default Re: stalling problem

Just a guess, but you might want to look at the idle air control valve.
On the Camry the idle is set by the computer. It reads the engine speed
and sends signals to a "step motor" inside the idle air control valve
to change the position of a small internal drum to vary the air flow
past the closed throttle valve.
With the fluctuating idle, sounds like that would be something to
check.
Only thing I've found, is sometimes the valve gets stuck and a spray of
TriFlow has restored it for me, but I've only experienced the problem
on a cold engine, where it doesn't open fully.
IIRC the factory service manual lists a resistance check, so you might
start there.

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Old 11 May 2006, 10:37 am   #6 (permalink)
Erhan
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Default Re: stalling problem

Thanks for the advice. Do I have to take it apart or will a spray
through the opening do the job?

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Old 11 May 2006, 11:27 am   #7 (permalink)
Mike2006
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Default Re: stalling problem

Spray carb cleaner thru the tiny holes at the bottom of the air intake just
before the butterfly. Take the big air intake hose off and you will see
where two rubber hoses connect on the outside of the intake, the holes go
straight thru to the inside. The holes get carboned up and just need
cleaning.

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Old 11 May 2006, 11:45 pm   #8 (permalink)
mrdarrett@gmail.com
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Default Re: stalling problem


Erhan wrote:
> Hi! I have a 93 Camry that stalls at traffic lights after it gets hot.
> First the rpm starts going up and down and eventually the engine
> chokes. So far I tried changing the MAP and Coolant Tmp Sensors and the
> distributer. Does anyone have another idea? I appreciate your help.
> Thanks.
>
> Erhan



Cheap solution: try checking the EGR vacuum modulator filter. It's a
little filter inside a black part that looks like a flying saucer,
towards the back (looking under the hood). It has 3 black hoses
leading to it: two on one side, one on the other. Pop the top off.

I have (had?) a stalling problem on my '96 camry. Tried a bunch of
things [throttle plate cleaning, IAC valve cleaning, ...] I finally
looked at the EGR modulator filter, which was falling apart on me, and
had two scorch marks on the rough part of the filter. Removed the
rough part, re-attached the fluffy parts, and so far so good...

fyi, I hear that you can't anymore buy just the filter - you have to
buy a whole new EGR modulator, if you want new parts.

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