92 camry problem

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Old 05 Sep 2005, 03:48 pm   #1 (permalink)
bushdoctor48@webtv.net
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Default 92 camry problem

This past summer my camry has begun
to over rev at stop lights and while slowing down for a stop.You can see
by
the tac as it bounces up and down.
I have tried spraying wd40 on the linkage
a few times,thinking it may be sticking.
The over rev seems to come after I use the AC.Putting the car in N and
pumping
the pedal a few times seems to stop it
but only until the car comes to a stop
again.
The car is using more gas than it ever
did before to.

All in all a great car though,over 330k
with 170k on the engine.Heater hose
broke on the prev owner who drove
it till it seized ,toyota replaced it.



model 92 le v6
any help thanks

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Old 07 Sep 2005, 08:18 am   #2 (permalink)
Daniel
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Default Re: 92 camry problem

try a short spray of TriFlow at the rectangular hole (air inlet to IAC
valve) at the (inside) bottom of the throttle body.
the idle air control valve regulates idle speed (controlled by the
computer)
if that valve were sticking could account for idle speed not responding
correctly

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Old 07 Sep 2005, 08:22 am   #3 (permalink)
Daniel
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Default Re: 92 camry problem

try a short spray of TriFlow at the rectangular hole (air inlet to IAC
valve) at the (inside) bottom of the throttle body.
the idle air control valve regulates idle speed (controlled by the
computer)
if that valve were sticking could account for idle speed not responding
correctly
TPS (throttle position sensor) could be questionable also. (tells the
ECU computer when throttle is closed at idle)
check for smooth progressively increasing resistance with ohm meter
there is also a setting measured across the IDL contacts at the TPS
while holding thin thickness guage in position to calibrate the point
at which idle engages.
these setting are in the factory service manual under the heading of
throttle body removal

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Old 08 Sep 2005, 11:23 pm   #4 (permalink)
James Andrus
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Default Re: 92 camry problem

I had a similar problem on a 93 pickup that I traced to a vacuum leak (dirt
in the power steering vacuum valve). 22RE engine. I have no idea what your
engine is. Sometimes this happens when the brake booster leaks (vacuum) --
you'll know if it is happening when you hold the pedal down at a stop, then
goes away when you release the pedal -- but be sure to leak check the
boster, 'cause mine did it and the booster wasn't at fault, it just put more
strain on the vacuum system..

<bushdoctor48@webtv.net> wrote in message
news:18649-431CAF31-904@storefull-3113.bay.webtv.net...
> This past summer my camry has begun
> to over rev at stop lights and while slowing down for a stop.You can see
> by
> the tac as it bounces up and down.
> I have tried spraying wd40 on the linkage
> a few times,thinking it may be sticking.
> The over rev seems to come after I use the AC.Putting the car in N and
> pumping
> the pedal a few times seems to stop it
> but only until the car comes to a stop
> again.
> The car is using more gas than it ever
> did before to.
>
> All in all a great car though,over 330k
> with 170k on the engine.Heater hose
> broke on the prev owner who drove
> it till it seized ,toyota replaced it.
>
>
>
> model 92 le v6
> any help thanks
>



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