Car is not wanting to start whenit does its knocking real bad and worse when excel sounds like it's leaking all water and them bubbles real loud

There are multiple things that can cause cars to start difficultly - t -Battery -Fuel pump -Alternator -Starter -Spark plugs Occasionally, the key will not turn in the ignition switch. As an anti-theft feature, the steering wheel locks when the key is removed. Sometimes, the wheel moves back against the locking pawl, preventing you from turning the key. Try nudging the steering wheel left or right as you turn the key. Knocking is usually low octane cheap fuel