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Air Conditioning and Coolant
Antifreeze and Engine Coolant
Radiators
Toyota Corolla

Do you need to bleed air out of the system when you change antifreeze and flush a 1996 Corolla?


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If you're only changing the pads, no. You only need to bleed if the hydraulic system was opened or if you wish to flush/change the brake fluid.

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When changing the antifreeze first drain the old fluid by disconnecting the lower radiator hose. Plug the hose in and add coolant to the radiator. Check for air in the system, bleed if necessary.

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I usually pull one end of the lower hose off the radiator and allow the system to drain then, reattach and fill with antifreeze. Start car and let it idle for 30 minutes, (keeping the radiator cap off to bleed the air out) and top off the coolant level.

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Well, if you know how to bleed your breaks, then its probably a similar process, like leaking your breaks, or were you put in gasoline...

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Anytime you open the hydraulic system of the brakes you have introduced air into the system and you need to bleed the system when you are done. If you keep the brake fluid reservoir full while you make repairs it will be easier for you to bleed the system.


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