By opening the radiator petcock, you may drain the engine coolant from the engine. However, if you are unable to locate a petcock, you will need to disconnect the bottom hose from the engine block in order to drain the coolant/antifreeze. A tiny quantity of oil is usually left in the block, which may be flushed out with water before refilling the coolant in most cases.
How do you drain the engine block on a car?
- How to Locate and Use an Engine Block Drain A drain pan should be placed under the radiator petcock, which is positioned at the bottom of the radiator on the driver’s side of the vehicle.
- Drain the coolant from the radiator and cooling lines of the engine by opening the petcock.
- The petcock should be closed when the coolant is no longer circulating.
- The engine block drains on your car should be easily identifiable.
What to do if coolant is running out of the block?
Allow the fluid to drain until it is no longer oozing out of the block’s opening. Cleanly probe into the engine through the drain bolt hole with a paper clip that has been straightened to ensure that no sludge or debris has accumulated and impeded the flow of the remaining coolant.