Camry stalling

#11

On May 11, 11:17 am, Erhan <bilal.er... (AT) gmail (DOT) com> wrote:

Quote:

On May 11, 11:29 am, mrdarr... (AT) gmail (DOT) com wrote:

On May 10, 4:55 pm, johngd... (AT) hotmail (DOT) com wrote:

To quickly check the EGR modulator, get a free loaner MityVac vacuum
gauge from AutoZone. Connect the gauge to the hose from the modulator
that goes into the EGR valve. Do you read vacuum during idle? There
should be no vacuum from the modulator at idle, engine warm or cold.

Also, pull vacuum on the EGR valve. Does the engine quit? This is
assuming the EGR valve operates normally and isn't stuck open at all
times, but if so I would think too that the problem would be there
when the engine is cold.

If it happens only when warm then can you keep the engine running by
opening the throttle slightly? Idle Air Control valve on Camrys likes
to stick shut. However, pre-97 has other things like thermo-vacuum
valves etc that can cause problems too.

You can read about the IAC (on later 5SFEs) here. If it's the cause
then cleaning should help.http://www.autosafety.org/article.php?did=972&scid=101

On May 10, 11:46 am, Erhan <bilal.er... (AT) gmail (DOT) com> wrote:

I have a 93 4 cyl Camry with a problem that none of the mechanics so
far, including the dealer, could fix. After driving for a while the
idle speed starts dropping until one stop light the engine stalls. It
looks like it will run for ever at highway speed. Also seems to be
heat related since it only happens in the summer. Here are the things
that have already been checked, repaired or replaced:

EGR valve
Thermostat
Temperature sensor
Distributer assembly
MAP sensor
ECU

I am getting very close to giving it to the Salvation Army. Does
anyone have
any other ideas? Have you seen this problem before? Thanks.

be- Hide quoted text -

- Show quoted text -

Say, John... would the EGR vacuum switching valve likely be a problem,
if he only stalls when it's warm out? Does it usually go bad? It's
just an electromagnet solenoid coil, right?

I suspected the VSV too, when troubleshooting my stalling problem, but
I stopped when the EGR modulator swap fixed it.

(Plus, the VSV is really hard to get to.)

Best wishes

Michael

Is VSV the blue switch with two hoses coming out of it near the
coolant temp sensor?
There is no information about it in my Haynes manual

Erhan- Hide quoted text -

- Show quoted text -

See page 47, http://www.turboninjas.com/camry/eg1.pdf

Not a particularly clear drawing, I'm afraid.

Michael

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Camry stalling

Toyota Camry Discussions About Toyota Camry (alt.autos.toyota.camry)

Re: Camry stalling - 05-11-2007 , 03:59 PM