TrailBlazer 2WD L6-4.2L VIN S (2003)
1. Install a new water pump gasket.
NOTICE:
Refer to Fastener Notice in Service Precautions.
See: Service Precautions/Vehicle Damage Warnings/Fastener Notice
2. Install the water pump and secure the water pump with the bolts.
Tighten
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On the initial pass, tighten the bolts to 4 Nm (35 lb in).
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On the final pass, tighten the bolts to 10 Nm (89 lb in).
3. Install the water pump pulley.
4. Install the water pump pulley bolts.
5. Using the J 41240, secure the water pump pulley while tightening the water pump pulley bolts.
Tighten
Tighten the bolts to 25 Nm (18 ft. lbs.).
6. Remove the J 41240.
7. Install the drive belt.
8. Install the fan and the shroud.
9. Fill the cooling system with the specified coolant and concentration.
10. Inspect for leaks.
