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REMOVAL It is easier to remove/install sensor from under vehicle. (1) Raise and support vehicle. (Fig. 30). (3) Remove sensor mounting bolt (Fig. 30). rocking action with two small screwdrivers. (5) Check condition of sensor o-ring. INSTALLATION (1) Clean out machined hole in cylinder head. o-ring. (3) Install sensor into cylinder head with a slight rocking action. Do not twist sensor into position as CAUTION: Before tightening sensor mounting bolt, (4) Install mounting bolt and tighten to 12 N·m (106 in. lbs.) torque. (5) Connect electrical connector to sensor. DISTRIBUTORS—3.9/5.2/5.9L ENGINES REMOVAL CAUTION: Base ignition timing is not adjustable on (1) Remove air cleaner assembly. screws). (4) Mark the position of distributor housing in relationship to engine or dash panel. This is done to (5) Before distributor is removed, the number one cylinder must be brought to the Top Dead Center (6) Attach a socket to the Crankshaft Vibration Damper mounting bolt. (7) Slowly rotate engine clockwise, as viewed from front, until indicating mark on crankshaft vibration damper is aligned to 0 degree (TDC) mark on timing (8) The distributor rotor should now be aligned to the CYL. NO. 1 alignment mark (stamped) into the (9) Disconnect camshaft position sensor wiring harness from main engine wiring harness. (10) Remove distributor rotor from distributor shaft. Fig. 31 Damper-To-Cover Alignment Marks—Typical 1 – ALIGNMENT MARK Fig. 32 Rotor Alignment Mark—3.9/5.2/5.9L Engines 1 – CAMSHAFT POSITION SENSOR ALIGNMENT MARK 8D - 16 IGNITION SYSTEM DN REMOVAL AND INSTALLATION (Continued) |