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2TORIAL
Learn2 Flush a Car Radiator (continued)
Step 6: Drain the radiator

To drain the radiator, you'll need to locate the petcock, which is the radiator's drain valve. You'll find it on the bottom of the radiator, and you'll notice that it has a handle. That handle is there for a reason: you won't need a wrench to open it (although you have one handy just in case).

  • Open the petcock. As you open this valve, the coolant will start to flow from the radiator into the drain pan you placed below it.
  • Allow enough time for all of the coolant to drain out, and then close the petcock.
  • Using the funnel, pour the drained coolant into a container that meets the disposal regulations in your area. Set it in a safe place while you continue this project.



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2TORIAL STEPS
Introduction
Step 1: Clean the radiator front and fan
Step 2: Place the drain pan
Step 3: Remove the radiator pressure cap
Step 4: Inspect the radiator pressure cap
Step 5: Inspect the clamps and the hoses
Step 6: Drain the radiator
Step 7: Rinse the radiator
Step 8: Add the coolant mixture
Step 9: Bleed the system
Step 10: Replace the radiator pressure cap
Step 11: Clean up

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