OEM 2010 Chevrolet Cobalt Heater Core

2010 Chevrolet Cobalt Parts Questions & Experts Answers

• Q: How to replace the Heater Core on 2010 Chevrolet Cobalt?

  A: The cooling system requires draining as the first step for Heater Core replacement. Use a drain pan under the Water Pump drain port before you loosen the drain bolt to remove cooling system fluid while the vehicle rests on stands. The Water Pump drain bolt needs to be secured tightly at 10 nm torque setting (88 lb in). Lower the vehicle so you can reposition the heater outlet hose clamp at the Heater Core using hose clamp pliers (J 38185) before removing the outlet hose. Use hose clamp pliers (J 38185) to reposition the heater inlet hose clamp at the Heater Core for removal of the heater inlet hose. Extract first the Heater Core cover before taking out the Heater Core itself. Check for damage on the lower hvac case foam Heater Core seal and repair it with kent industries adhesive black foam tape (P/N 46480) or equivalent. Your task is to insert the new Heater Core into both the hvac module along with the Heater Core cover. Insert the heater outlet hose to the Heater Core and tighten it with hose clamp pliers (J 38185). After preparing the heater inlet hose you should fill the cooling system.