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Home >> Chevrolet >> 2021 >> Tahoe Z71 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 5.3L (L84) Or 6.2L (L87) - Repair Instructions (2 Of 11) >> Repair Instructions >> Timing Chain, Crankshaft Sprocket, Camshaft Position Actuator, and Solenoid Valve Replacement (L84, 4WD with RC1, without F47) >> Removal Procedure

Removal Procedure

  1. Remove the negative battery cable from the battery. Battery Negative Cable Disconnection and Connection (9C1, 5W4) , or Battery Negative Cable Disconnection and Connection (KL9)
  2. Remove the oil level indicator. (1)
    GM5535974Courtesy of GENERAL MOTORS COMPANY
  3. Air Cleaner Outlet Duct Bracket Bolt (1) - Remove
    GM5001375Courtesy of GENERAL MOTORS COMPANY
  4. Remove engine wiring harness from air cleaner outlet duct bracket.
  5. Positive Crankcase Ventilation Fresh Air Tube (1) - Disconnect - Plastic Collar Quick Connect Fitting Service
    GM5551440Courtesy of GENERAL MOTORS COMPANY
  6. Air Cleaner Outlet Duct Clamp (2) - Loosen [2x]
  7. Air Cleaner Outlet Duct (3) - Remove
  8. Using a suitable tool, cut the accessory drive primary belt (1).
    GM5606792Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The accessory drive primary belt is not reusable.

  9. Accessory Drive Primary Belt (1) - Remove and DISCARD
  10. Using a suitable tool, cut the accessory drive auxiliary belt (1).
    GM5606811Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The accessory drive auxiliary belt is not reusable.

  11. Accessory Drive Auxiliary Belt (1) - Remove and DISCARD
  12. Battery Positive Cable Nut (1) - Remove
    GM5573641Courtesy of GENERAL MOTORS COMPANY
  13. Starter Solenoid Cable (2) - Remove
  14. Electrical Connector (3) - Disconnect
  15. Retaining Tab (1) - Disengage [2x]
    GM5572790Courtesy of GENERAL MOTORS COMPANY
  16. Engine Wiring Harness Junction Block Cover (2) - Remove
  17. Battery Positive Cable Nut (3) - Remove
  18. Starter Solenoid Cable (4) - Remove
  19. Engine Wiring Harness Junction Block Bolt (2) - Loosen [4x]
    GM5572883Courtesy of GENERAL MOTORS COMPANY
  20. Retaining Tab (1) - Disengage [4x]
  21. Engine Wiring Harness Junction Block (3) - Remove
  22. Electrical Connector (1) - Remove [4x]
    GM5573073Courtesy of GENERAL MOTORS COMPANY
  23. Engine Wiring Harness Fuse Block Bracket Bolt (2) - Remove [2x]
    GM5573198Courtesy of GENERAL MOTORS COMPANY
  24. Retaining Tab (1) - Disengage
  25. Engine Wiring Harness Fuse Block Bracket (3) - Remove
  26. Oil Level Indicator Tube Bolt (1) - Remove
    GM5535975Courtesy of GENERAL MOTORS COMPANY
  27. Remove both front tire and wheel assemblies. Tire and Wheel Removal and Installation (Steel Wheel) , or Tire and Wheel Removal and Installation (Aluminum Wheel)
  28. Drain the cooling system. Cooling System Draining and Filling (GE 47716 L84, L87) , or Cooling System Draining and Filling (Static L84, L87)
  29. Engine Oil and Oil Filter - Remove and DISCARD - Engine Oil and Oil Filter Replacement
  30. Front Bumper Fascia Skid Plate Bolt (1) - Remove [4x]
    GM5512320Courtesy of GENERAL MOTORS COMPANY
  31. Underbody Splash Shield Bolt (2) - Remove [4x]
  32. Underbody Splash Shield (1) - Remove
    GM5512311Courtesy of GENERAL MOTORS COMPANY
  33. Underbody Splash Shield Bolt (2) - Remove [2x]
    GM5512332Courtesy of GENERAL MOTORS COMPANY
  34. Underbody Skid Shield (3) - Remove
  35. Engine Oil Cooler Hose Clip (1) - Release
    GM5568873Courtesy of GENERAL MOTORS COMPANY
  36. Have an assistant apply the brakes.
  37. Front Wheel Drive Shaft Nut (1) - Remove and DISCARD
    GM5580467Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    DO NOT use air tools to remove the wheel drive shaft nut. Damage to the wheel drive shaft threads could occur. Use hand tools only.

  38. Front Wheel Drive Shaft Nut (1) - Remove and DISCARD
    GM5591238Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    DO NOT use air tools to remove the wheel drive shaft nut. Damage to the wheel drive shaft threads could occur. Use hand tools only.

  39. Install the DT-45859  Axle Remover (2) to the front wheel hub and secure with 2 wheel nuts (1) hand tightened.
    GM5591239Courtesy of GENERAL MOTORS COMPANY
  40. Using the DT-45859  Axle Remover (2), release the front wheel drive half shaft from the front wheel hub.
  41. Remove the 2 wheel nuts (1) and the DT-45859  Axle Remover (2) from the front wheel hub.
  42. Front Brake Hose Bracket Bolt (1) - Remove
    GM5591237Courtesy of GENERAL MOTORS COMPANY
  43. Front Brake Caliper Bolt (2) - Remove [2x]
    GM5591236Courtesy of GENERAL MOTORS COMPANY
  44. CAUTION:

    Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause damage to the brake hose and in turn may cause a brake fluid leak.

  45. Remove the brake caliper and support with heavy mechanics wire. (1)
  46. Front Wheel Speed Sensor Bolt (1) - Remove
    GM5591242Courtesy of GENERAL MOTORS COMPANY
  47. Front Wheel Speed Sensor (2) - Remove
  48. Front Wheel Speed Sensor Bracket Bolt (3) - Remove
  49. Front Wheel Speed Sensor Bracket (4) - Remove
  50. Front Wheel Speed Sensor Bracket Bolt (1) - Remove
    GM5591255Courtesy of GENERAL MOTORS COMPANY
  51. Remove the front wheel speed sensor wiring harness bracket (2).
  52. Steering Linkage Outer Tie Rod Nut (1) - Remove
    GM5591251Courtesy of GENERAL MOTORS COMPANY
  53. Using the CH-43631  Ball Joint Separator (1), remove the steering linkage outer tie rod from the steering knuckle.
    GM5591252Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Do not attempt to disconnect a steering linkage joint by driving a wedge between the joint and the attached part. Seal damage may result which will cause premature failure of the joint.

  54. Front Stabilizer Shaft Link Nut (1) - Remove
    GM5633900Courtesy of GENERAL MOTORS COMPANY
  55. Front Stabilizer Shaft Link@Lower Control Arm - Remove
  56. NOTE:

    Support the lower control arm to prevent over-articulation of the front lower control arm ball joint.

  57. Support the lower control arm with a suitable jack stand.
  58. Front Upper Control Arm Ball Stud Nut (1) - Loosen
    GM5591253Courtesy of GENERAL MOTORS COMPANY
  59. Using the CH-42188-B  Ball Joint Separator (1), separate the right front upper control arm (2) from the steering knuckle.
    GM5591254Courtesy of GENERAL MOTORS COMPANY
  60. Remove the CH-42188-B  Ball Joint Separator (1) from the right front upper control arm (2) and the steering knuckle.
  61. Front Upper Control Arm Ball Stud Nut (1) - Remove
    GM5591248Courtesy of GENERAL MOTORS COMPANY
  62. Remove jack stand.
  63. Using a suitable flat bladed tool (1), release the front wheel drive half shaft (2) from the front differential carrier.
    GM5591241Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Wheel drive shaft boots, seals and clamps should be protected from sharp objects any time service is performed on or near the wheel drive shaft(s). Damage to the boot(s), the seal(s) or the clamp(s) may cause lubricant to leak from the joint and lead to increased noise and possible failure of the wheel drive shaft.

    NOTE:

    Some components not shown for graphic clarity.

  64. Remove the front wheel drive half shaft (1) from the front axle.
    GM5591240Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

  65. Remove the front wheel drive half shaft (1) from the wheel hub.
  66. Front Wheel Drive Shaft Retaining Ring (1) - Remove and DISCARD
    GM5595902Courtesy of GENERAL MOTORS COMPANY
  67. Front Wheel Drive Shaft Seal (2) - Remove and DISCARD
  68. Install the DT-45859  Axle Remover (2) to the front wheel hub and secure with 2 wheel nuts (1) hand tightened.
    GM5580468Courtesy of GENERAL MOTORS COMPANY
  69. Using the DT-45859  Axle Remover (2), release the front wheel drive half shaft from the front wheel hub.
  70. Remove the 2 wheel nuts (1) and the DT-45859  Axle Remover (2) from the front wheel hub.
  71. Front Brake Hose Bracket Bolt (1) - Remove
    GM5527943Courtesy of GENERAL MOTORS COMPANY
  72. Front Disc Brake Pad Wear Sensor (1) @Front Brake Caliper - Remove
    GM5517176Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Only the left front wheel is equipped with the front disc brake pad wear sensor.

  73. Front Brake Caliper Bolt (2) - Remove [2x]
    GM5518506Courtesy of GENERAL MOTORS COMPANY
  74. CAUTION:

    Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause damage to the brake hose and in turn may cause a brake fluid leak.

  75. Remove the brake caliper and support with heavy mechanics wire. (1)
  76. Front Wheel Speed Sensor Bolt (1) - Remove
    GM5582579Courtesy of GENERAL MOTORS COMPANY
  77. Front Wheel Speed Sensor (2) - Remove
  78. Front Wheel Speed Sensor Bracket Bolt (3) - Remove
  79. Front Wheel Speed Sensor Bracket (4) - Remove
  80. Front Wheel Speed Sensor Bracket Bolt (1) - Remove
    GM5582402Courtesy of GENERAL MOTORS COMPANY
  81. Remove the front wheel speed sensor wiring harness bracket (2).
  82. Steering Linkage Outer Tie Rod Nut (1) - Remove
    GM5588267Courtesy of GENERAL MOTORS COMPANY
  83. Using the CH-43631  Ball Joint Separator (1), remove the steering linkage outer tie rod from the steering knuckle.
    GM5589040Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Do not attempt to disconnect a steering linkage joint by driving a wedge between the joint and the attached part. Seal damage may result which will cause premature failure of the joint.

  84. Front Stabilizer Shaft Link Nut (1) - Remove
    GM5633908Courtesy of GENERAL MOTORS COMPANY
  85. Front Stabilizer Shaft Link@Lower Control Arm - Remove
  86. NOTE:

    Support the lower control arm to prevent over-articulation of the front lower control arm ball joint.

  87. Support the lower control arm with a suitable jack stand.
  88. Front Upper Control Arm Ball Stud Nut (1) - Loosen
    GM5604912Courtesy of GENERAL MOTORS COMPANY
  89. Using the CH-42188-B  Ball Joint Separator (1), separate the left front upper control arm (2) from the steering knuckle.
    GM5604914Courtesy of GENERAL MOTORS COMPANY
  90. Remove the CH-42188-B  Ball Joint Separator (1) from the left front upper control arm (2) and the steering knuckle.
  91. Front Upper Control Arm Ball Stud Nut (1) - Remove
    GM5604913Courtesy of GENERAL MOTORS COMPANY
  92. Remove jack stand.
  93. Using a suitable flat bladed tool (1), release the front wheel drive half shaft (2) from the front differential carrier.
    GM5588262Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Wheel drive shaft boots, seals and clamps should be protected from sharp objects any time service is performed on or near the wheel drive shaft(s). Damage to the boot(s), the seal(s) or the clamp(s) may cause lubricant to leak from the joint and lead to increased noise and possible failure of the wheel drive shaft.

    NOTE:

    Some components not shown for graphic clarity.

  94. Remove the front wheel drive half shaft (1) from the front axle.
    GM5588259Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

  95. Remove the front wheel drive half shaft (1) from the wheel hub.
  96. Front Wheel Drive Shaft Retaining Ring (1) - Remove and DISCARD
    GM5595902Courtesy of GENERAL MOTORS COMPANY
  97. Front Wheel Drive Shaft Seal (2) - Remove and DISCARD
  98. Front Wheelhouse Liner- Left Side - Remove - Front Wheelhouse Liner Replacement
  99. Unclip and reposition the chassis wiring harness bracket (1) away from the frame shock tower.
    GM5568546Courtesy of GENERAL MOTORS COMPANY
  100. Front Shock Absorber Nut (1) - Remove [3x]
    GM5568487Courtesy of GENERAL MOTORS COMPANY
  101. Front Shock Absorber Bolt (1) - Remove [2x]
    GM5575833Courtesy of GENERAL MOTORS COMPANY
  102. Front Shock Absorber (1) - Remove
    GM5002019Courtesy of GENERAL MOTORS COMPANY
  103. Front Stabilizer Shaft Bolt (1) - Remove [4x]
    GM5591026Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Support the front stabilizer shaft.

  104. Front Stabilizer Shaft Clamp (2) - Remove [2x]
  105. Front Stabilizer Shaft (3) - Remove
  106. Mark a reference point between the front axle propeller shaft (1) and the front differential drive pinion gear yoke.
    GM5043426Courtesy of GENERAL MOTORS COMPANY
  107. Front Axle Propeller Shaft Bolt (2) - Remove [6x]
  108. Front Axle Propeller Shaft Washer (3) - Remove [3x]
  109. Front Axle Propeller Shaft (1) - Reposition away
  110. Disconnect the front drive axle actuator electrical connector (1).
    GM5589726Courtesy of GENERAL MOTORS COMPANY
  111. Release the two harness retainers (2) and reposition harness.
  112. Electrical Connector@Heater Coolant Pump (2) - Disconnect
    GM5620579Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

  113. Heater Water Auxiliary Pump Bolt (1) - Remove
  114. Remove the heater coolant pump and heater water auxiliary pump bracket (2) as assembly and position aside.
  115. NOTE:

    Ensure that the front axle is securely attached to the hydraulic jack.

  116. Support the front axle with a hydraulic jack.
  117. Front Differential Carrier Nut (1) - Remove
    GM5568832Courtesy of GENERAL MOTORS COMPANY
  118. Front Differential Carrier Bolt (2) - Remove and DISCARD
  119. Drivetrain and Front Suspension Frame Reinforcement Nut (1) - Remove [4x]
    GM5568896Courtesy of GENERAL MOTORS COMPANY
  120. Drivetrain and Front Suspension Frame Reinforcement Bolt (2) - Remove [4x]
  121. Drivetrain and Front Suspension Frame Front Crossmember (1) - Remove
    GM5568922Courtesy of GENERAL MOTORS COMPANY
  122. Front Differential Carrier Bracket Nut (1) - Remove
    GM5589729Courtesy of GENERAL MOTORS COMPANY
  123. Front Differential Carrier Bolt (2) - Remove
  124. Front Differential Carrier Bolt (1) - Remove
    GM5589730Courtesy of GENERAL MOTORS COMPANY
  125. Front Axle Vent Hose - Disconnect
    GM5589733Courtesy of GENERAL MOTORS COMPANY
  126. NOTE:

    The front axle may have to be maneuvered to remove it from the vehicle.

  127. Front Axle (1) - Remove
  128. Torque Converter Cover Bolt-Left Side (1) - Remove
    GM5585541Courtesy of GENERAL MOTORS COMPANY
  129. Transmission Converter Cover-Left Side (2) - Remove
  130. Engine Oil Cooler Hose Bracket Nut (1) - Remove
    GM4997286Courtesy of GENERAL MOTORS COMPANY
  131. Engine Oil Pressure Sensor Sleeve (1) - Remove
    GM4997823Courtesy of GENERAL MOTORS COMPANY
  132. Electrical Connector (1) @Engine Oil Pressure Sensor - Disconnect
    GM5582300Courtesy of GENERAL MOTORS COMPANY
  133. Wiring Harness Retainer (2) @Engine Oil Cooler Hose - Remove
  134. Engine Oil Cooler Adapter Bolt (1) - Remove [2x]
    GM5582326Courtesy of GENERAL MOTORS COMPANY
  135. Engine Oil Cooler Hose (1) @Oil Pan - Reposition
    GM5582330Courtesy of GENERAL MOTORS COMPANY
  136. Engine Oil Cooler Gasket (2) - Remove and DISCARD
  137. Electrical Connector@Knock Sensor (4) - Disconnect
    GM5538525Courtesy of GENERAL MOTORS COMPANY
  138. Remove the transmission fluid auxiliary cooler pipe bracket nut (1) from the oil pan.
    GM5504569Courtesy of GENERAL MOTORS COMPANY
  139. Engine Wiring Harness Retainer (2) - Remove
    GM5644061Courtesy of GENERAL MOTORS COMPANY
  140. Engine Wiring Harness Ground Stud (1) - Remove [2x]
  141. Engine Wiring Harness (3) @Oil Pan - Reposition
  142. Engine Wiring Harness Retainer (1) @Oil Level Indicator Tube (2) - Disconnect
    GM5535977Courtesy of GENERAL MOTORS COMPANY
  143. Disconnect the wiring harness connectors and retainers as necessary.
  144. Transmission Fluid Cooler Pipe Clip Bolt (1) @Oil Pan - Remove
    GM5644122Courtesy of GENERAL MOTORS COMPANY
  145. NOTE:

    Components removed in graphic to better illustrate service parts.

  146. Transmission Fluid Cooler Pipe Clip Bracket (2) @Oil Pan - Remove
  147. Reposition the transmission cooler inlet and outlet pipe (1) as necessary.
    GM5608335Courtesy of GENERAL MOTORS COMPANY
  148. Oil Level Indicator Tube (1) @Oil Pan - Remove
    GM5535978Courtesy of GENERAL MOTORS COMPANY
  149. Oil Level Indicator Seal (2) - Remove and DISCARD
  150. Oil Level Indicator Tube (1) - Reposition
  151. Starter Heat Shield Bolt (1) - Remove [2x]
    GM5569719Courtesy of GENERAL MOTORS COMPANY
  152. Starter Heat Shield Bolt (1) - Remove
    GM5569721Courtesy of GENERAL MOTORS COMPANY
  153. Starter Heat Shield (2) - Remove
  154. Battery Negative Cable Ground Bolt (1) - Remove
    GM5569769Courtesy of GENERAL MOTORS COMPANY
  155. Starter Solenoid Cable (2) - Reposition away
  156. Starter Bolt (1) - Remove [2x]
    GM5569758Courtesy of GENERAL MOTORS COMPANY
  157. Reposition the starter (2) to access the electrical connections.
  158. Protective Sleeve (4) - Reposition
    GM5569840Courtesy of GENERAL MOTORS COMPANY
  159. Starter Solenoid Cable Nut (2) - Remove
  160. Starter Solenoid Cable (1) - Remove
  161. Electrical Connector (3) - Disconnect
  162. Starter (1) - Remove
    GM5569910Courtesy of GENERAL MOTORS COMPANY
  163. Torque Converter Cover Bolt- Right Side (1) - Remove
    GM5585543Courtesy of GENERAL MOTORS COMPANY
  164. Transmission Converter Cover- Right Side (2) - Remove
  165. Position the EN-42386  Flywheel Holding Tool (1) into place.
    GM5591309Courtesy of GENERAL MOTORS COMPANY
  166. Install the M10-1.5 x 120mm (3) and the M10-1.5 x 45mm (2) bolts and tighten to 50 N.m (37 lb ft).
  167. Transmission Bolt (1) - Remove [2x]
    GM5760502Courtesy of GENERAL MOTORS COMPANY
  168. Electrical Connector (1) - Disconnect
    GM5589667Courtesy of GENERAL MOTORS COMPANY
  169. Oil Pan Bolt (2, 3) - Remove [16x]
    GM5569924Courtesy of GENERAL MOTORS COMPANY
  170. Oil Pan (1) - Remove
  171. Oil Pan High Pressure Port Seal (2) - Remove and DISCARD [2x]
    GM5577670Courtesy of GENERAL MOTORS COMPANY
  172. Oil Pan Front Seal (3) - Remove and DISCARD
  173. Air Conditioning Compressor Bolt (1) - Remove
    GM5585694Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    It is not necessary to recover and recharge the refrigerant to perform this repair.

  174. Air Conditioning Compressor Nut (2) - Remove
  175. Air Conditioning Compressor Stud (3) - Remove
  176. Air Conditioning Compressor (1) - Position aside
    GM5585692Courtesy of GENERAL MOTORS COMPANY
  177. Crankshaft Balancer Bolt (1) - Remove and DISCARD
    GM5644180Courtesy of GENERAL MOTORS COMPANY
  178. Install the EN-41816-A  Crankshaft Balancer Remover (1) and the EN-44226-5  Crankshaft Protector (3) crankshaft balancer (2).
    GM5586268Courtesy of GENERAL MOTORS COMPANY
  179. Using the EN-41816-A  Crankshaft Balancer Remover (1) and the EN-44226-5  Crankshaft Protector (2) remove the crankshaft balancer (3) from the crankshaft.
    GM5586937Courtesy of GENERAL MOTORS COMPANY
  180. Remove the EN-41816-A  Crankshaft Balancer Remover (1) and the EN-44226-5  Crankshaft Protector (2) from the crankshaft balancer (3).
  181. Radiator Surge Tank Outlet Hose Clip (2) - Remove [2x]
    GM5568620Courtesy of GENERAL MOTORS COMPANY
  182. Radiator Surge Tank Outlet Hose (3) - Position aside
  183. Radiator Inlet Hose Clip (2) - Remove
    GM5568866Courtesy of GENERAL MOTORS COMPANY
  184. Radiator Inlet Hose Clamp (1) - Disengage - Hose Clamp Replacement Guidelines - Spring Type
  185. Radiator Inlet Hose (3) @Engine Radiator - Remove and position aside
  186. Wiring Harness Retainer (1) - Remove [2x]
    GM5568870Courtesy of GENERAL MOTORS COMPANY
  187. Electrical Connector (3) - Disconnect
  188. Wiring Harness (2) - Position aside
  189. Wiring Harness Retainer (2) - Remove [2x]
    GM5568871Courtesy of GENERAL MOTORS COMPANY
  190. Electrical Connector (1) - Disconnect
  191. Wiring Harness (3) - Position aside
  192. Engine Oil Cooler Retainer (2) - Remove [2x]
    GM5568876Courtesy of GENERAL MOTORS COMPANY
  193. Engine Oil Cooler Pipe Bracket Bolt (3) - Remove
  194. Engine Oil Cooler Hose (1) @Engine Radiator - Remove [2x]
  195. Transmission Fluid Cooler Pipe Bolt (1) - Remove
    GM5569435Courtesy of GENERAL MOTORS COMPANY
  196. Transmission Fluid Cooler Pipe Clip (2) - Remove [2x]
  197. Transmission Fluid Cooler Pipe Clip (1) - Release
    GM5569584Courtesy of GENERAL MOTORS COMPANY
  198. Engine Coolant Fan Bracket Bolt (1) - Remove [2x]
    GM5001393Courtesy of GENERAL MOTORS COMPANY
  199. Engine Cooler Fan (1) @Engine Radiator - Remove
    GM5001394Courtesy of GENERAL MOTORS COMPANY
  200. Generator Bolt (1) - Remove [2x]
    Generator (1) - Remove
    GM5642527Courtesy of GENERAL MOTORS COMPANY
    GM5642615Courtesy of GENERAL MOTORS COMPANY
  201. Hose Clamp (1) - Disengage [2x] - Hose Clamp Replacement Guidelines - Spring Type
    GM4994147Courtesy of GENERAL MOTORS COMPANY
  202. Heater Inlet Hose (2) @Water Pump - Remove
  203. Heater Water Auxiliary Pump Hose (3) @Water Pump - Remove
  204. Radiator Outlet Hose Clamp (1) - Disengage - Hose Clamp Replacement Guidelines - Spring Type
    GM4994158Courtesy of GENERAL MOTORS COMPANY
  205. Radiator Outlet Hose (2) @Water Pump - Remove
  206. Hose Clamp (1) - Disengage [2x] - Hose Clamp Replacement Guidelines - Spring Type
    GM4994407Courtesy of GENERAL MOTORS COMPANY
  207. Engine Coolant Air Bleed Hose (2) @Water Pump - Remove
  208. Radiator Inlet Hose (3) @Water Pump - Remove
  209. Engine Coolant Temperature Sensor Electrical Connector (1) - Disconnect
    GM4994461Courtesy of GENERAL MOTORS COMPANY
  210. Water Pump Housing Bolt (1) - Remove [6x]
    GM4994474Courtesy of GENERAL MOTORS COMPANY
  211. Water Pump (1) - Remove
    GM5587617Courtesy of GENERAL MOTORS COMPANY
  212. Water Pump Gasket (2) - Remove and DISCARD [2x]
  213. NOTE:

    If the engine front cover is reused, the crankshaft front oil seal must be replaced.

  214. If the engine front cover is reused perform the following steps:
    1. Install the EN-51096  Seal Remover (2) to the GE-23907-1  Slide Hammer with Shaft (1).
      GM5606803Courtesy of GENERAL MOTORS COMPANY
    2. NOTE:

      EN-51096  Crankshaft Seal Remover (2) has two ends. The end with the larger bend will be used to remove the crankshaft front oil seal (3).

    3. Slide the large bend of the EN-51096  Seal Remover (2) between the lip of the crankshaft front oil seal and crankshaft. Ensure that the larger bend of the EN-51096  Crankshaft Seal Remover (2) engages the rear side of the crankshaft front oil seal (3).
    4. Using the EN-51096  Seal Remover (2) and the GE-23907-1  Slide Hammer with Shaft (1) remove the crankshaft front oil seal (3).
    5. Crankshaft Front Oil Seal (1) - Remove and DISCARD
      GM5606801Courtesy of GENERAL MOTORS COMPANY
  215. Engine Front Cover Bolt (1, 3) - Remove [10x]
    GM5615528Courtesy of GENERAL MOTORS COMPANY
  216. Engine Front Cover (2) - Remove
  217. Oil Pump Bolt (1) - Remove [4x]
    GM5617530Courtesy of GENERAL MOTORS COMPANY
  218. Oil Pump (1) - Remove
    GM5617529Courtesy of GENERAL MOTORS COMPANY
  219. Compress the tensioner blade and install the EN-46330  Timing Belt Tensioner Retaining Pin (1) into the timing chain tensioner (2).
    GM5608752Courtesy of GENERAL MOTORS COMPANY
  220. Camshaft Position Actuator Solenoid Valve (1) - Remove and DISCARD
    GM5608754Courtesy of GENERAL MOTORS COMPANY
  221. Loosen and separate the camshaft position actuator (3) and timing chain (1) from the camshaft as an assembly. Position fingers behind the actuator sprocket (2) and pull the actuator (3) and sprocket (2) away from the front of the camshaft. Never pull on the reluctor wheel (3) when attempting to remove the actuator.
    GM5608758Courtesy of GENERAL MOTORS COMPANY
  222. Remove the camshaft position actuator sprocket (2) and timing chain (1) as an assembly.
  223. Insert a tie strap through the center of the actuator (3) and over the reluctor wheel to hold it together.
  224. Timing Chain Tensioner Bolt (1) - Remove [2x]
    GM5608777Courtesy of GENERAL MOTORS COMPANY
  225. Timing Chain Tensioner (2) - Remove
  226. Crankshaft Sprocket (1) @Crankshaft - Remove
    GM5608780Courtesy of GENERAL MOTORS COMPANY
  227. Using the appropriate tool, clean and prepare the applicable sealing surface.