Pulsating normaly means that there isn't enough watergetting to the machine....Clean out the inline filter, where the hose meets the washer. As for the leak, ..If you're clever , take off the cover to locate where it's leaking, and, if it's between two surfaces that can be dismantled, take appart and seal with a liquid gasket. (Locktite do it) ONLY ATTEMPT IF YOU'RE CONFIDENT. If not...Chuck it away and start again.
CHUM
November 2009