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Home >> Chevrolet >> 2018 >> Suburban 3500 HD LT >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Engine Mechanical - 5.3L (L83) Or 6.2L (L86) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Timing Chain, Crankshaft Sprocket, Camshaft Position Actuator, And Solenoid Valve Replacement >> Removal Procedure

Removal Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban, and 2018 Cadillac Escalade ESV. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove oil pump. Refer to Oil Pump Replacement .
    2. Fig 1: Timing Chain Tensioner And Tension Pin
    GM3278838Courtesy of GENERAL MOTORS COMPANY
  2. Push back the timing chain tensioner (1) and install EN-46330  tension pin (2).
    3. Fig 2: CMP Actuator Solenoid Valve
    GM3278825Courtesy of GENERAL MOTORS COMPANY
  3. Remove the CMP actuator solenoid valve (1).
  4. Discard the solenoid valve.
    5. Fig 3: View Of Proper CMP Actuator Removal
    GM1714936Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    Refer to Camshaft Position Actuator Removal and Installation Warning .

  5. Loosen and separate the CMP actuator and timing chain from the camshaft. Position fingers behind the actuator sprocket and pull the actuator away from the front of the camshaft. Never pull on the reluctor wheel when attempting to remove the actuator.
    6. Fig 4: CMP Actuator And Timing Chain
    GM3278857Courtesy of GENERAL MOTORS COMPANY
  6. Remove the CMP actuator (1) and timing chain (2).
    7. Fig 5: View Of Tie Strap Through Center Of Actuator
    GM1714946Courtesy of GENERAL MOTORS COMPANY
  7. Insert a tie strap (1) through the center of the actuator and over the reluctor wheel.
    8. Fig 6: Crankshaft Sprocket, Key, Timing Chain Tensioner And Bolts
    GM3444077Courtesy of GENERAL MOTORS COMPANY
  8. Remove the crankshaft sprocket (4), and key (3).
  9. Remove the timing chain tensioner bolts (2) and the timing chain tensioner (1).
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