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The idle air control valve; may not be operating properly.It is operated from the computer, by electric impulses; it works to control the amount of air needed for idle engine speed; its a cone shaped,tip on a shaft that ,moves in and out of a hole to control idle speed, by adjusting the amount of air to the engine: when shifting ,it take a little more power than, just plain idle; so you may have to clean the passage or the unit or change the idle control valve. it on the throttle body. 2 small screws hold it in place.(allen).

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โˆ™ 2018-02-22 23:40:16
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Q: What could cause a car to shut off when shifting to reverse?
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