K 1500 Yukon XL 4WD V8-5.3L VIN T (2001)
30. Remove the 2 thermostat housing crossover bolts and 2 nuts from the left cylinder head.
31. Remove the 2 thermostat housing crossover bolts and 2 nuts from the right cylinder head.
32. Remove the bypass pipe to water pump bolts.
33. Remove the thermostat housing crossover with the bypass pipe.
34. Remove the bypass pipe to water pump O-ring.
35. Remove the -bypass pipe from the thermostat housing crossover.
36. Remove the O-ring from the bypass pipe.
Inspection and Repair Procedure
1. If required, remove the thermostat cover bolts.
2. Remove the thermostat cover.
3. Remove the thermostats with seals.
