TrailBlazer 2WD L6-4.2L VIN S (2003)
Timing Chain: Service and Repair
Timing Chain, Sprockets, and/or Tensioner Replacement
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Tools Required
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J 36660-A Torque Angle Meter
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J 44221 Camshaft Holding Tool
Removal Procedure
1. Remove the camshaft cover.
2. Remove the engine front cover.
3. Release the tension on the timing chain by moving the tensioner shoe in.
4. Place the tee into the tensioner to hold the shoe in place.
