- Pliers
- Screwdriver
- Socket set
- 5/8-inch wrench
- 10mm wrench
- 12mm wrench
- 3/8-inch ratchet
- 2-foot piece of 3/8-inch-diameter PVC pipe
- 3 feet of 5/8-inch hose
- 2 hose clamps
- Heater core (Dorman 602-204)
Step 2: Drain the coolant.
WARNING: Coolant is toxic. Avoid contact with skin and eyes.
- Open the draincock at the bottom of the radiator.
- Allow the coolant to drain until the level is below the heater core.
- Close the draincock.
Step 3: Remove the old heater core.
- Disconnect the heater hoses from the heater core.
- Remove the bolts holding the heater core in place.
- Remove the heater core from the vehicle.
Step 4: Install the new heater core.
- Insert the new heater core into the vehicle.
- Install the bolts holding the heater core in place.
- Reconnect the heater hoses to the heater core.
- Ensure that the heater core is properly seated in the gasket.
Step 5: Refill the coolant.
- Fill the cooling system with coolant until the overflow tank is full.
- Start the engine and let it run for a few minutes to circulate the coolant.
- Check the coolant level and add more if necessary.
Step 6: Test the heater.
- Turn on the heater and ensure that warm air is blowing into the cabin.
- If the heater is not working properly, check the following:
- Ensure that the heater core is properly seated in the gasket.
- Check the heater core hoses for kinks or blockages.
- Check the heater core inlet and outlet pipes for kinks or blockages.
- Check the blend door for proper operation.
