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Fluctuating Idle Speed

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Sep 26, 2002 | 12:40 PM

#1

Sea2river

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Joined: Sep 2002

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From: MD

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Fluctuating Idle Speed

For quite some time, my 92 ES300 idle speed has been fluctuating. It will idle at 1200 RPM, then drop to 600 for 30 seconds then surge back up to 1200. It is not linked to air conditioner use since it occurs with the A/C off or on. Other than the fluctuation, engine runs smoothly. Any ideas?

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Old

Sep 26, 2002 | 02:19 PM

#2

muldrick

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Joined: Sep 2002

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From: PA

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Do a throttle body cleaning, which'll most likely fix it.
let me know

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Old

Sep 27, 2002 | 08:58 AM

#3

black sc

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Joined: Oct 2001

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From: West Coast

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Put a new throttle body gasket also and tighten to spec when done.

Last edited by black sc; Sep 27, 2002 at 08:59 AM.

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Tags

2001, 300, es, es300, flacuates, fluctuates, fluctuating, idle, lexus, lighting, rpm, sc400, speed

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