P1005 – Idle Control Range/Performance (Ford)

Description

P1005 Ford indicates that idle speed is outside the PCM’s control range. This can cause rough idle, stalling, or unstable RPM.

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Symptoms

High or low idle
Stalling
Rough idle

Causes

Dirty throttle body
Faulty IAC valve
Vacuum leak
Incorrect base idle

Diagnosis

Inspect for vacuum leaks
Check IAC operation
Review throttle body condition

Repair

Clean throttle body
Repair leaks
Replace IAC valve