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Home >> Jeep >> 1990 >> Cherokee Base, 2D Utility, 2.5 E, RWD, Automatic >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Ignition Timing Control System >> Ignition Timing Control (5.9L)
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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.