Yukon XL 2500 4WD V8-6.0L VIN N (2006)
2. Use the J 41665 in order to install the crankshaft balancer.
1
Assemble the threaded rod, nut, washer and installer. Insert the smaller end of the installer into the front of the balancer.
2
Use a wrench and hold the hex end of the threaded rod.
3
Use a second wrench and rotate the installation tool nut clockwise until the balancer is started onto the crankshaft.
4
Remove the tool and reverse the installation tool. Position the larger end of the installer against the front of the balancer.
5
Use a wrench and hold the hex end of the threaded rod.
6
Use a second wrench and rotate the installation tool nut clockwise until the balancer is installed onto the crankshaft.
7
Remove the balancer installation tool.
3. Install the used crankshaft balancer bolt.
Tighten the USED bolt to 330 Nm (240 ft. lbs.).
4. Remove the used crankshaft balancer bolt.
Important: The nose of the crankshaft should be recessed 2.4 - 4.48 mm (0.094 - 0.176 inch) into the balancer bore.
5. Measure for a correctly installed balancer. If the balancer is not installed to the proper dimensions, install the J 41665 and repeat the installation
procedure.
6. Install a NEW crankshaft balancer bolt.
1
Tighten the bolt a first pass to 50 Nm (37 ft. lbs.).
2
Tighten the bolt a second pass to 140 degrees using J 45059.
7. Remove the J 42386-A and bolts.
8. Install the starter motor.
9. Install the fan shroud - lower.
10. Install the accessory drive belt (if not equipped with A/C).
11. Install the A/C drive belt (if equipped).
12. Perform the crankshaft position (CKP) system variation learn procedure. Refer to CKP System Variation Learn Procedure. See: Powertrain
Management/Computers and Control Systems/Crankshaft Position Sensor/Service and Repair