I have a Maytag washing machine. When I turn on a outside water faucet, it drips in the machine. It used to only happen to one of the faucets in my backyard, but now it happening when I use either faucet. Can someone help?
If you are saying that when you turn on a faucet not connected to the washer that water comes into the washer, then I am at a lost to explain that.
I would replace the valve in the washer.
Valves do use the water pressure to help them seal/close.
By the sound of it your valve has a problem and when the pressure drops due to opening the other faucet the valve opens partially.