Idle Speed & Mixture

NOTE: Idle mixture is not adjustable. For additional information, see TESTS W/CODES - 5.4L article.

IDLE RPM SPECIFICATION

Application

⁽¹⁾⁽²⁾ RPM

A/T

800-850

M/T

725-775

⁽¹⁾	Idle speed is checked with engine warm and all accessories and fan off.

⁽²⁾	Idle speed is computer controlled and is not adjustable.