there is no "block drain", just remove the lower radiator hose to drain the block
There is a drain valve at the bottom of the radiator and you will have to remove the drain bolt in the engine block.
To bleed the cooling system on a 96 Acura 3.5 L, cool the radiator and remove the radiator cap. Loosen the drain plug and drain.
drain the whole cooling system and refill it. You will never know if you don't give details of your car!
If you do not have a radiator cap once you drain the radiator, you can use several options to flush the cooling system. You can easily do this by filling up the system with as much water as you can and then warm it up.Ê
Remove the lower radiator hose or loosen the radiator drain.
pull off the lower radiator hose.
there is a drain plug on the bottom tank of the radiator
Drain the cooling system as best as you can including the block if possible. Pour two cups of "Lestoil" household cleaner into the radiator and refill with fresh water. Use the vehicle for a week then drain the system again and flush. If there is still evidence of oil in the cooling system treat again with "Lestoil" for another week. Once the system drains and flushes clean, refill with a 50/50 mix of antifreeze and clean water.
With the cooling system completely empty (radiator, heater, engine block, hoses, reservoir) the system holds 9.2 US qts.If you only drain the radiator, aprox 4 US qts should do it.
Drain and flush your entire cooling system.
Hey Nancy==Simply remove the drain plugs from each side of the block and the bottom of the radiator. CAtch the old coolant and dispose of it properly. Refill the system with 50/50 mix of coolant and water. GoodluckJoe
Locate the plug on the bottom of the radiator to drain it. Put some radiator cleaner in and drain it again.