LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jeep >> 1990 >> Wrangler S >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Ignition Timing Control System >> Ignition Timing Control (5.9L)
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Ignition Timing Control (5.9L)

The distributor used in 5.9L engines is equipped with centrifugal and vacuum-assisted advance systems. Ignition timing is advanced to the correct number of degrees during engine operation by these advance systems.