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2002 Ford Ranger Question: What would cause the engine to idle high when started in afternoon?

 

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joekarper, 3.0L V6, Kernersville, NC, August 25, 2013, 00:33
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Engine idles high around 2,000RPM's when started in afternoon but as soon as put in drive it drops down to 1,000RPM's?

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    pushrod August 25, 2013, 07:56
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     Master

    After the engine is warm, does it idle ok in park?

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    joekarper, August 26, 2013, 10:59
     Rookie

    Yea once it was up for like a half hour or more.

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    pushrod, August 26, 2013, 14:33
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     Master

    Suspect idle air control. Scan test needed by a mechanic, not just codes read at parts store.

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