Join Date: Jan 2003
Location: Escondido, California
When the engine dies only at idle, that's usually a sign it's not getting the air it requires through the IAC's (Idle Air Controller) Passage Inlet. Cleaning the throttle body's interior with a throttle body cleaner while the engine is running, taking particular care to aim some of the spray at the IAC Passage Inlet as shown in the below illustration, usually takes care of the issue. Sometimes the IAC has to be removed to be cleaned more thorougly if cleaning it through the throttle body doesn't take care of it. The IAC is a solenoid actuated plunger that allows air into the engine via the IAC Passage Inlet at idle rpms when your foot is off the accelerator pedal that leaves the TB's butterfly valve plate closed. Without the IAC letting air in at idle, the engine won't run or it will idle erratically.
When you have a choice, buy American made.
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