
Disconnect the spark plug before the replacement. A wrench set is needed to install the new valve. Chemical injection valve: The chemical injection valve is responsible for mixing the cleaning detergent with the water before it is ejected from the hose.Four power washer parts you may need for repairs This could mean a faulty part is to blame. If this the case, switch out your current nozzle for a different one.Īfter you've pursued all of these troubleshooting methods, you may find that your pressure washer still doesn't seem to be working correctly. Change the nozzle: Sometimes, the water pressure coming from the power washer is too high.Routinely check your air filter, making sure it’s clean at all times. Check the air filter: If your motor is sputtering or not running correctly, it could be the result of bad air coming in via the intake.This is the first thing you should check when experiencing pressure issues.

Check for leaks: Low pressure is often the cause of a leak in the supply hose or its connection.Fixing this may be as simple as opening the water supply faucet to provide the power washer more water. If water supply flow isn’t high enough, it will create a shaking feeling and affect your pressure levels. Check the water supply: Never let the water supply run too low.
