OEM GMC Sierra 3500 Classic Thermostat Housing

GMC Sierra 3500 Classic Thermostat Housing Parts Questions & Experts Answers

• Thermostat Housing
  97383583
  Q: How to replace the Engine Coolant Thermostat Housing (LY2, LH6, LY5, LMG, LY6) on GMC Sierra 3500 Classic?

  A: To replace the engine coolant Thermostat Housing (LY2, LH6, LY5, LMG, LY6), follow these steps with the draining of the cooling system. Second, take off the air cleaner outlet duct, and reposition the radiator outlet hose clamp at water pump inlet and take off the radiator outlet hose from the water pump inlet. Remove the water pump inlet bolts and the water pump inlet, discarding the old water pump inlet seal. For installation, install a new water pump inlet seal to the water pump inlet, place the water pump inlet to the water pump and install the water pump inlet bolts; tighten to 15 n.m (11 lb ft). Reattach the outlet Radiator Hose back on the water pump inlet, reposition the radiator outlet hose clamp and reinstalling the air cleaner outlet duct. Finally, fill the cooling system.