Low idle speed, stick accelerator pedal

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Old 19 May 2006, 11:22 am   #1 (permalink)
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Default Low idle speed, stick accelerator pedal

99 Camry, 120000miles. For quite some time, I have had a stick
accelerator pedal which make it difficult to initially press. I know I
should clean the throttle body to fix it. Now I got the well known IAC
problem (low idle speed, or even turn off, at cold start). Are these
two problems connected? I mean, if I clean the throttle body, does the
IAC problem goes away?



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Old 20 May 2006, 11:13 am   #2 (permalink)
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Default Re: Low idle speed, stick accelerator pedal

The PCV valve lets engine "blow by" into the throttle body. Over time,
some oil mist can collect on the back of the butterfly valve aka
"throttle" and cause it to stick. A sensor safe carburetor cleaner will
remove it almost instantly. I like Berryman B12 Chemtool. Just spray
front and back, agitate less accessible areas with an old toothbrush
and wipe clean with a rag.
For the IAC valve, when you have the air intake hose removed (one 10mm
hose clamp), look for the rectangular air opening at the bottom - right
in front. Spray some TriFlow in there. You can usually find TriFlow at
bicycle shops and home improvement stores. There is no lubrication
inside the idle air control valve, and sometimes they stick. The Teflon
fortified TriFlow seems to provide the longest lasting cure.

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