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How do you bleed the cooling system on a 4.6 liter north star engine?

To bleed the cooling system on a 4.6 liter Northstar engine, follow these steps:

_Park the vehicle on level ground and turn off the engine. Allow it to cool down completely._

1. _Locate the bleeder screw on the water pump housing. It is usually a small, plastic screw located near the top of the housing._

2. _Place a pan or container under the bleeder screw to catch any coolant that may come out._

3. _Slowly open the bleeder screw with a screwdriver or a wrench until you see a steady stream of coolant flowing out._

4. _Allow the coolant to drain until it stops flowing, then close the bleeder screw._

5. _Add coolant to the overflow tank until it reaches the "Full" mark._

6. _Start the engine and let it run for a few minutes._

7. _Turn the heater on and set it to the highest temperature._

8. _Check the temperature gauge and make sure that it is not reading higher than normal._

If the temperature gauge is reading high, you may need to bleed the cooling system again.

Note: Be careful not to overfill the coolant tank, as this can damage the engine.