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P1506 Diagnostic Trouble Code Discussion for June 2010

Idle Air Control System RPM Higher Than Expected

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Trouble Ticket Help Requests for DTC P1506
Help Request Posted
2000 Ford Explorer Postal 4.0L MIL Lamp on, High Idle VIN: 1FCMU69K6Y
P1506: idle over speed limit. ... for any help you can give me on this one! I have a postal service truck here that keeps setting a p1506 (idle over speed limit), along with a intermittent high idle. When the vehicle is initially started it does not come down from about 1500 rpm until you ...
June 05, 2010