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Bleeding the cooling system on my '94 Roadmaster

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Published on Mar 3, 2012

This is a short video of how to bleed the cooling system on an LT-1. To do this so there is no mess, the best way is to remove the bleeder that is on the car, and buy a brass "T" fitting from the hardware store (around $6.00), and some clear plastic hose. Run the hose down by the lower radiator hose, and tie it with some 'zip ties'. Then, just twist the handle to open it, and the coolant will run down the hose, into a bucket on the floor-no mess!

The best way to do this, is to have the car up on jack stands, or ramps, so the front end is higher than the rear (so the bleeder is higher than the heater core inside the passenger compartment). Once all the antifreeze is in the system, and once the thermostat is open, then you can twist the handle, and watch all the air bubbles coming out of the hose. Then, when the car has been shut off for about 10 minutes, do it again, and you will see even more air bubbles. Even though what I read said that it might take 2-3 times, I must have gotten all the air out of the system the first time I did it. But, at least you can see what I've done (with the new 'bleeder'), and how to do it.

I also took a video of the inside of the car, showing the HVAC 'diagnostic' mode (setting number 08), that shows the water temperature at Fahrenheit, and comparing it to where the temp gauge is at.

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