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14. Install the engine front cover. Refer to Engine Front Cover Replacement. 15. Install the intake CMP sensor. Refer to Camshaft Position Sensor Replacement - Intake . 16. Install the exhaust CMP sensor. Refer to Camshaft Position Sensor Replacement - Exhaust . 17. Install the camshaft cover. Refer to Camshaft Cover Replacement. 18. Install #1 cylinder spark plug. Refer to Spark Plug Replacement . TIMING CHAIN TENSIONER REPLACEMENT Tools Required J 44221 Camshaft Holding Tool. See Special Tools. Removal Procedure 1. Remove the camshaft cover. Refer to Camshaft Cover Replacement. 2. Remove the engine front cover. Refer to Engine Front Cover Replacement. 3. Rotate the crankshaft in the engine rotational direction clockwise, until the #1 piston is at top dead center (TDC) on the compression stroke.
2007 Hummer H3 2007 ENGINE Engine Mechanical - 3.7L - H3
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