An engine water hammer is a phenomenon when water infiltrates the engine cylinder along with air and fuel. This will occur exclusively through the intake manifold – which is the only place open for foreign substances to enter the engine. Keep in mind that no vehicle is protected from water hammer. In most cases when water hammer does happen, the vehicle will need costly repairs.
HOW DOES WATER ENTER THE INTERNAL COMBUSTION ENGINE?
Water can possibly infiltrate the internal combustion engine in two ways:
- The car was parked in low-lying areas which are prone to flooding. Or it happened to be in an underground parking area which got flooded.
- The car gets into a very deep puddle which allowed a certain amount of water get into the air filter.
SIGNS OF ENGINE WATER HAMMER
Let’s say your car was caught in a deep-seated puddle or sudden flood, it is likely that the water has reached the upper edge of your car’s radiator. Below are signs that your car has engine water hammer:
- There is water in the intake manifold module.
- The air filter is wet.
- There are interruptions in speed and strong vibrations when operating the engine.
WHAT CAN YOU DO IF AN ENGINE WATER HAMMER OCCURS?
If you’ve noticed all the signs above, then an engine water hammer has occurred. Here are some of the things you can do about it:
- The first thing you can do is to dry the car. Make sure that you unscrew the plugs and remove the air filter covers. Now, through the spark plug hole, take about one tablespoon engine oil and introduce into each cylinder. You may also use a special grease gun or a syringe to do this. With the help of the grease, the pistons may able to move if there happens to be rust on the cylinder walls.
- Lift the hood to check if there is water in the air filter. In some instances, you won’t see visible drops on the filter element, but you’ll notice that it is already deformed. That is a sure sign of a water hammer.
- If there is moisture, remove it immediately by using well-absorbent materials such as a dry napkin or a cotton fabric rag.
- If you have done everything above but still no progress, it’s best to call a tow truck to your chosen service station or garage. That way, you can seek help from professionals who know what’s best to get rid of engine water hammer.
TIPS TO PREVENT ENGINE WATER HAMMER
Engine water hammer is a real danger, but it can be prevented. If you want to know how you can prevent engine water hammer to happen, here are some tips you can follow:
- When the weather is bad, there is one rule to always keep in mind: do not go through a huge pool of water;
- If it can’t be avoided, make sure to run on a slower speed. By doing so, it would mean better chances of avoiding an engine water hammer to occur.
- After going through that pool of water, it’s best to stop as a preventive measure and check the condition of your car’s air filter.