Idle Speed & Ignition Timing

Ensure idle speed and ignition timing are set to specification. See IGNITION TIMING SPECIFICATIONS table. For adjustment procedures, see ADJUSTMENTS article.

IGNITION TIMING SPECIFICATIONS (Degrees BTDC @ RPM)

Application

⁽¹⁾ Basic

⁽²⁾⁽³⁾ Actual

3.5L

2-8 @ 600-800

⁽⁴⁾ 15 @ 600-800

⁽¹⁾	With ignition timing adjustment connector grounded or vacuum hose (farthest from distributor) disconnected.

⁽²⁾	With ignition timing adjustment connector ungrounded or vacuum hose (farthest from distributor) connected. Actual ignition timing is approximate and may fluctuate.

⁽³⁾	If vehicle altitude is more than 2300 feet above sea level, actualtiming may be advanced (5 degrees).

⁽⁴⁾	Actual ignition timing is approximate and may fluctuate plus or minus 8 degrees.