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Home >> Dodge and Ram >> 2003 >> Durango Base, 5.9 Z, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 91 (3.7L Engine (Service Information)) >> Timing Belt/Chain And Sprockets >> Removal

Timing Belt/Chain And Sprockets: Removal

WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect negative cable from battery.
  2. Drain cooling system (Refer to STANDARD PROCEDURE - DRAINING COOLING SYSTEM ).
  3. Remove right and left cylinder head covers (Refer to CYLINDER HEAD COVER  ).
  4. Remove radiator fan shroud (Refer to RADIATOR FAN - ELECTRIC ).
  5. Rotate engine until timing mark on crankshaft damper aligns with TDC mark on timing chain cover (Fig 1 ) and the camshaft sprocket "V6" marks are at the 12 o'clock position (No. 1 TDC exhaust stroke) (Fig 2 ).
    Fig 1: Identifying Engine Top Dead Center (TDC) Indicator Mark
    G03512190Courtesy of DAIMLERCHRYSLER CORP.
    Fig 2: Identifying Camshaft Sprocket V6 Marks
    G03512189Courtesy of DAIMLERCHRYSLER CORP.
  6. Remove power steering pump (Refer to PUMP ).
  7. Remove access plug from left and right cylinder heads for access to chain guide fasteners (Fig 3 ).
    Fig 3: Identifying Cylinder Head Access Plugs
    G03512191Courtesy of DAIMLERCHRYSLER CORP.
  8. Remove the oil fill housing to gain access to the right side tensioner arm fastener.
  9. Remove crankshaft damper (Refer to VIBRATION DAMPER  and timing chain cover (Refer to REMOVAL  ).
  10. Collapse and pin primary chain tensioner.
    CAUTION: Plate behind left secondary chain tensioner could fall into oil pan. Therefore, cover pan opening.
  11. Remove secondary chain tensioners.
  12. Remove camshaft position sensor (Fig 4 ).
    Fig 4: Identifying Camshaft Position Sensor
    G03512192Courtesy of DAIMLERCHRYSLER CORP.
    CAUTION: Care should be taken not to damage camshaft target wheel. Do not hold target wheel while loosening or tightening camshaft sprocket. Do not place the target wheel near a magnetic source of any kind. A damaged or magnetized target wheel could cause a vehicle no start condition.
    CAUTION: Do not forcefully rotate the camshafts or crankshaft independently of each other. Damaging intake valve to piston contact will occur. Ensure negative battery cable is disconnected to guard against accidental starter engagement.
  13. Remove left and right camshaft sprocket bolts.
  14. While holding the left camshaft steel tube with Special Tool 8428 Camshaft Wrench, remove the left camshaft sprocket. Slowly rotate the camshaft approximately 5 degrees clockwise to a neutral position.
  15. While holding the right camshaft steel tube with Special Tool 8428 Camshaft Wrench, remove the right camshaft sprocket.
  16. Remove idler sprocket assembly bolt.
  17. Slide the idler sprocket assembly and crank sprocket forward simultaneously to remove the primary and secondary chains.
  18. Remove both pivoting tensioner arms and chain guides.
  19. Remove primary chain tensioner.